Loopwheels Urban User manual

Loopwheels for Wheelchairs:
Loopwheels Urban and Extreme
User Manual
EN
Thank you for choosing Loopwheels™. We wish you much enjoyment
on your wheels.
BEFORE using this product, read this manual and save for future reference.
It contains important information for your safety and for the maintenance of
your wheels. In particular, don’t exceed 25 km/h.
Find updated user manuals at https://loopwheels.com/technical/user-manual/
Dealers and Distributors:
This manual MUST be given to the user of the product.
Do NOT attempt to change bearings without specific advice from
[email protected], as our bearings are fixed into the wheels.
Contents:
1. GENERAL INFORMATION AND
WARRANTY
1.1 Information about the User
Manual
1.2 Symbols in this manual
1.3 Warranty
1.4 Intended use
1.5 Limitation of liability
2. PRODUCT IDENTIFICATION
3. SAFETY
3.1 General Safety Information and
Operating Limits
4. COMPONENTS AND THEIR
FUNCTIONS
4.1 Overview of components
4.2 Bearings
4.3 Springs
5. ACCESSORIES
5.1 Tyres
5.2 Spacers
5.3. Removable Axles
5.3.1 Axle diameter
5.3.2 Axle length
5.3.3 Loopwheels quick-release axles
6. FITTING LOOPWHEELS™ TO
YOUR WHEELCHAIR
6.1. Fitting Loopwheels™ to your
wheelchair for the first time
6.2 Fitting and removing
loopwheels™ in everyday use
6.2.1 Fitting Loopwheels™ on
subsequent occasions
6.2.2 Removing Loopwheels™
7. USING LOOPWHEELS™
7.1 Braking
7.2 Driving and steering a
wheelchair fitted with
loopwheels™
8. TRANSPORT
8.1 Safety Information
8.2 Transporting a wheelchair fitted
with Loopwheels™ in a vehicle
9. MAINTENANCE
9.1 Safety Information
9.2 Maintenance Schedule
9.3 Repairing or changing an inner
tube
9.4 Cleaning
10. TROUBLESHOOTING
10.1 Safety Information
10.2 Identifying and repairing faults
11. AFTER USE
11.1 Safety
11.2 Disposal
12. TECHNICAL DATA
12.1 Dimensions and weight
12.2 Environmental conditions
12.3 Materials

1. General Information and Warranty
1.1 Information about the User Manual
This User Manual contains important information about your new wheels, to
ensure your safety and prevent damage when fitting your wheels to your chair,
and to avoid invalidating your product warranty.
For the latest product information, please refer to our website at www.
loopwheels.com, your local Loopwheels™ dealer, or contact the Loopwheels™
distributor in your country (see www.loopwheels.com/stockists).
1.2 Symbols in this manual
In this User Manual warnings are indicated by symbols. The warning symbols are
accompanied by a heading that indicates the severity of the danger.
 WARNING Indicates a hazardous situation that could result in serious
injury or death if it is not avoided.
 CAUTION Indicates a hazardous situation that could result in minor or
slight injury if it is not avoided.
 IMPORTANT Indicates a hazardous situation that could result in damage to
property if it is not avoided.
1.3 Warranty
Jelly Products Ltd guarantees that our products are free from defects and are
fully functional. The warranty covers all faults and defects that are verifiably
attributable to faulty construction, substandard materials or poor workmanship.
Warranty claims should be made through the dealer or distributor from whom
the product was bought. Claims should only be made to the manufacturer
if the product was purchased directly from us. The warranty does not cover
normal wear and tear, the consequences of improper handling or damage,
poor maintenance and incorrect assembly or commissioning by the purchaser
or a third person, or faults which are attributable to circumstances beyond our
control. Wearing parts (i.e. tyres and tubes) are not covered by the guarantee. The
warranty is voided if modifications are made to the product or if inappropriate
accessories or spare parts are used. The warranty does not cover consequential
costs arising from the rectification of defects such as freight and travel expenses,
labour costs, fees etc. The term of the manufacturer’s warranty is 12 months
from the date of purchase. Your statutory rights are not affected.
1.4 Intended use
Loopwheels™ are intended to improve comfort and mobility for people who use
a manual wheelchair. Loopwheels™ Urban and Extreme are wheels with integral
suspension designed for use as an accessory to a manual wheelchair with the
purposes of making it easier for a person in a manual wheelchair to pass over
uneven surfaces and reducing the jolting and vibration felt by the person using a
manual wheelchair.
Loopwheels™ Urban and Extreme are designed for use with a pneumatic tyre at
speeds of up to 25km/h. They may be used with a manual wheelchair to which a
power attachment is attached as long as the maximum speed of 25 km/h is not
exceeded. Suitable manual wheelchairs include those designed for active and
semi- active use, and chairs designed to be pushed by an assistant.
Indications: adolescents and adults who use a wheelchair and weigh between
30kg and 100kg .
Contra-indications: none associated with proper use.
1.5 Limitation of liability
Jelly Products Ltd accepts no liability for damage arising from:
• Non-compliance with the User Manual
• Incorrect use
• Natural wear and tear
• Incorrect assembly or set-up by the purchaser or a third party
• Technical modifications
• The usage of unapproved 3rd party accessories.
• Unauthorised modifications and/or use of unsuitable spare parts
• Removal of bearings
• Removal of logos (as this will damage the UV protective lacquer on the
surface of the springs.)
The maximum warrantied speed limit is 25 km/h.

2. Product Identification
2.1 Unique Product Identification
Each wheel has a serial number on the hub. This enables full traceability of each
wheel.
3. Safety
3.1 General Safety information
General safety advice for using a wheelchair applies. We recognise that people
use their chairs in their own ways, and we believe people should always do what
they have found to work best for them as individuals.
Nevertheless, this manual contains important safety information for the
protection of the wheelchair user and assistant, and for safe, trouble-free use of
Loopwheels™ Extreme and Urban.
Each section contains specific safety advice. In particular:
- Don’t exceed the recommended load (user, chair and baggage) of 120kg
- Don’t exceed the maximum speed of 25 km/h.
- Loopwheels are not intended for use for passenger transport in a motor
vehicle: transfer into a fitted seat.
- Check the Loopwheels move freely and don’t touch any part of the wheelchair
when spinning.
- Ensure you have the correct size wheels, wheel bearing, and quick release axle
for your wheelchair.
- Check the axles are fully engaged in the wheelchair housing. See section 6.
- Fitting loopwheels™ to your chair changes the feel of the wheelchair
compared with spoked wheels, and may change the centre of gravity. Before
driving without assistance, you must accustom yourself to how the chair feels
and behaves.
- Adjust your driving style and speed to the conditions and who and what is
around you (weather, surface, individual ability and experience, people and
obstacles). There is a risk of skidding on wet ground, gravel or uneven terrain.
 WARNING
Risk of serious injury from unexpected wheel braking.
– Loopwheels™ must not be used with a rigid guard over the top of the tyres
unless there is a gap of at least 30mm between the guard and the tyre. There
is a risk that whilst moving the wheels could touch the guard and cause
sudden braking .
– Check there is a space of at least 30mm above the tyre at all times.
- There’s a risk of getting fingers, clothing or other items caught in the moving
wheel, between the wheel and the chair, or in removable parts such as the
axle. Take care when fitting and using Loopwheels that nothing becomes
caught.
- CAUTION! Don’t mount with excessively high camber
30 mm
Identification number

Camber is the angle or slope at which your wheels are mounted to your chair.
Each additional degree of camber adds 1 cm to the width at each side of your
chair. The greater camber adds stability, better turning and more space for your
hands. To some extent this is personal choice - BUT Loopwheels must not be
mounted at a camber angle that exceeds 12 degrees and we recommend a
maximum of 3 degrees for most customers.
4. Components and their functions
4.1 Overview of components
Loopwheels™ Urban and Loopwheels™ Extreme are wheels with integral
suspension for use with manual wheelchairs.
Your wheel may differ slightly from the diagram as each loopwheel is
manufactured individually to the specifications in the order.
4.2 Bearings
The bearings are fixed into the wheel hub.
DO NOT ATTEMPT TO REMOVE OR CHANGE THE BEARINGS YOURSELF!
 IMPORTANT
You may seriously damage your wheel if you remove the bearings by force
Seek advice from us about the correct procedure for removing bearings from
Loopwheels™.
If you wish to be able to change your bearings yourself, please specify when you
order Loopwheels™ that you wish them to be supplied with unfixed bearings.
4.3 Springs
Loopwheels™ Urban and Loopwheels™
Extreme have three springs in each
wheel made from carbon composite
material.
Loopwheels™ Urban has three spring
rates: soft, regular and stiff, and
Loopwheels™ Extreme has two spring
rates: regular and stiff.
Soft are denoted with a green spot,
regular with a yellow spot and stiff with
a red spot on a spring near the hub.
Rim
Push
Rim
Tyre
Hub
Bearing
Rim
Connector
Spring
Push Rim
Spacer
Spring
identification

For people at the higher weight end and for use at faster speeds, we recommend
a stiffer spring. For people at lower weights we recommend a softer spring.
Which spring rate feels right for you is also a matter of personal preference.
5. ACCESSORIES
5.1 Tyres
We recommend a pneumatic tyre such as Schwalbe® Marathon Plus tyres for
use with Loopwheels™.
 IMPORTANT
You may damage your wheels if you use them with solid tyres.
Do not use solid tyres with Loopwheels.
The size of the tyre is marked on the sidewall of the tyre.
For a Loopwheel Urban 24”, you need a tyre size ETRTO 25-540 or 24 x 1.00 inch
For a Loopwheel Urban 25”, you need a tyre size ETRTO 25-559 or 25 x 1.00 inch
For a Loopwheel Extreme, you need a tyre size ETRTO 47-507 or 24 x 1.75 inch
The ideal pressure depends on the tyre type, load and your personal preference.
The minimum and maximum pressure is marked on the side of the tyre. Keep the
pressure inflated between the minimum and maximum levels recommended by
the tire manufacturer.
In case of a tyre puncture consult a suitable workshop (e.g. bike repair shop,
bicycle or mobility equipment dealer) to have the tube replaced by a skilled
person, or replace it yourself following the instructions in section 9.2
 CAUTION
The tyre pressure needs to be maintained at the recommended level in both
wheels to avoid decreased driving comfort, to keep the parking brakes on your
chair working properly, and to ease propelling of the wheels and your wheel-
chair. See 9.2 for our recommended maintenance schedule.
5.2 Removable Axles
Loopwheels™ must be fitted to a wheelchair using a removable axle designed for
use with a manual wheelchair.
 WARNING
RISK OF OVERTURNING! There is a risk of overturning your wheelchair due to
using an incorrect size axle being used to fit Loopwheels™ to your wheelchair.
The axle must be the correct length and diameter so that the loopwheel is
firmly attached to your wheelchair for safe use.
- Choose a loopwheel with the same axle diameter as your wheelchair’s axle
housing.
- Choose the length of axle that attaches the loopwheel to your chair firmly, so
that the axle engages correctly in the axle housing of the wheelchair.
Sti springs Spring rate
recommendation
Regular springs
Soft springs
User weight (kgs)
Speed (km/h)

Axle diameter
Wheelchair axles are available in two diameters: ½ inch (12.7mm) or 12mm.
You must choose the diameter of axle that matches the specification of your
wheelchair:
• It is not possible to fit a ½ inch or 12.7mm removable axle shaft into a 12mm
axle housing.
• A 12mm axle shaft can be easily inserted into a 12.7mm axle housing but the
0.7mm difference in size will cause your wheels to wobble.
Axle length
Wheelchair axles are available in several lengths. You must choose the correct
length of axle that will pass right through the loopwheel into the wheelchair’s
axle housing, and engage so it holds the wheel firmly in place (see section 6).
Loopwheels™ quick-release axles
Our axles are “quick-release”: by pressing the button with the Loopwheels™
logo, the axle disengages.
You can make a minor adjustment to the axle length by rotating the nut, like this:
Step 1: Remove the axle from the wheel.
Step 2: Clamp the flat section to hold it still.
Step 3: Turn the nut using a spanner / wrench. Rotate clockwise to shorten
the length of the axle or rotate counter-clockwise to lengthen the axle. The
maximum total adjustment is 8mm.
5.3 Spacers
We provide 2 stainless steel and 1 rubber spacer with each Loopwheel. This
helps to ensure a snug fit of the wheels on your wheelchair and help prevent the
wheels touching the chair. Depending on the model and specification of your
chair, you may or may not need to use these.
Please refer to section 6 on how to fit Loopwheels™ to your chair for instructions
on how to use the spacers.
Nut
Metal
Spacers
Rubber
Spacers
Flat section
Axle diameter
Bearings
Wheel
axle length 99mm: 53mm
axle length 104mm: 58mm
axle length 109mm: 63mm
46mm
Bearing Position in a Loopwheel

6. FITTING LOOPWHEELS TO YOUR WHEELCHAIR™
6.1 Safety information
 WARNING
Risk of serious injury from overturning the wheelchair
– Always ensure that the removable axles are fully engaged whenever you fit a
wheel.
 WARNING
Risk of serious injury from overturning the wheelchair
Loopwheels™ must NOT be used with a rigid guard over the top of the tyres
unless there is a gap of 30mm between the guard and the tyre. There is a risk
that the wheels could touch the guard and cause sudden braking whilst you are
moving.
Check there is a space of at least 30mm above the tyre at all times.
 WARNING
Risk due to using an incorrect size of Loopwheels™ being fitted to your
wheelchair. The size of loopwheel must match the specification of your
wheelchair for safe performance.
– Choose a wheel of the correct diameter for your wheelchair
– Choose a loopwheel with the same axle diameter as your wheelchair axle
housing.
 CAUTION
Risk of injury
– Before using the wheels, check their general condition, refer to 9.2
Maintenance Schedule.
6.2 Check you have the correct size Loopwheels™ for your
wheelchair
Loopwheels™ Urban is available in 2 sizes: 540mm in diameter, which is a
standard 24” wheel when fitted with a standard size tyre, or 559mm in diameter,
which is a standard 25” wheel size.
Loopwheels™ Extreme is 507mm in diameter. It is designed to use with a wider
Mountain Bike Tyre and still keep the total wheel diameter with tyre to 24”
If you don’t know the size of wheel that is suitable for you and for your
wheelchair, seek advice from your dealer, healthcare provider or therapist.
Loopwheels™ are available with two sizes of axle bearing. We offer an internal
diameter of
• ½ inch (or 12.7mm) - the most common size; or
• 12mm
Internal Bearing Diameter

See section 5.2 for advice on axle diameters and lengths. If you don’t know the
diameter of the axle housing of your wheelchair, seek advice from the dealer
from whom you purchased your chair or your Loopwheels™, or from your
healthcare provider or therapist
6.4 Fitting Loopwheels™ to your wheelchair for the first time
A: IF YOU HAVE PURCHASED LOOPWHEELS™ FROM A SPECIALIST DEALER
Your dealer will supply your Loopwheels™ ready for use. Your dealer will
explain the main functions and ensure that the wheels meet your needs and
requirements. Your dealer will fit the wheels to your wheelchair.
B: IF YOU HAVE PURCHASED LOOPWHEELS™ WITHOUT HELP FROM A DEALER
If you fit Loopwheels™ to your wheelchair yourself, you must follow these
instructions:
Note: you must sit somewhere other than your wheelchair to remove your old
wheels and to fit Loopwheels™!
STEP 1. Release the brakes.
STEP 2. With one hand, hold the wheelchair upright.
STEP 3. With the other, remove your old wheels from the wheelchair by pressing
the centre of the axle.
STEP 4. Remove the existing axles from your old wheels. You can choose to re-
use these or use new axles with your Loopwheels™.
STEP 5. Look for the product identification number on each wheel. This side is
the inward facing side of the wheel.
Identification number
STEP 6: Push one axle into each Loopwheel™ from the other, outward facing
side of the wheel.
STEP 7. Insert the axle (with the wheel on it) into the axle housing on your
wheelchair, one side at a time.

STEP 8: Rotate the wheel slowly to check that no part of the Loopwheel™
touches or rubs the frame of the chair. We recommend a minimum clearance of
10mm at all points.
10mm
In addition, there must be a space of at least 30mm above the wheel.
30 mm
If the clearance is good, move to STEP 12.
If there is a clash or not enough clearance, move to STEP 9.
STEP 9: Remove the Loopwheel from the chair, place one of the steel spacers
onto the axle from the INNER side of the wheel. This will move the Loopwheel
further away from the wheelchair frame. Repeat Steps 8 and 9 up to a maximum
of 3 times until there is the correct amount of clearance between the wheel and
the frame of the chair.
STEP 8: Remove the Loopwheel from the chair, place one of the steel spacers
onto the axle from the INNER side of the wheel. This will move the Loopwheel
further away from the wheelchair frame.
STEP 10: Secure the steel spacers in place by sliding the rubber washer onto the
Loopwheel™ axle.
STEP 11: Replace the wheels onto the chair.
STEP 12: Check that the removable axles are fully engaged in the axle housing
of the wheelchair.
STEP 13: Check that the brakes still engage properly with the tyre. If they do not,
seek advice from your wheelchair supplier or therapist on re-positioning the
brakes.
Metal
Spacers
Rubber
Spacers

6.5 Fitting and removing Loopwheels™ in everyday use
 WARNING
Always ensure that the removable axles are fully engaged whenever you fit a
wheel.
Fitting Loopwheels™
STEP 1. Release the brakes.
STEP 2. With one hand, hold the wheelchair upright.
STEP 3. With the other, hold the wheel around the wheel hub.
STEP 4. Using your thumb, press the removable axle button and hold it down.
STEP 5. Push the axle into the wheelchair axle housing up to the stop.
STEP 6. Release the removable axle button and make sure that the wheel is
secure.
Removing Loopwheels™
STEP 1. Release the brakes.
STEP 2. With one hand, hold the wheelchair upright.
STEP 3. With the other, hold the wheel around the wheel hub.
STEP 4. Using your thumb, press the removable axle button and hold it down.
STEP 5. Pull the axle out of the wheelchair axle housing
7. USING LOOPWHEELS™
7.1 Safety information
 WARNING
Risk of accidents from travelling at speed:
- Do not exceed a safe speed for the environment in which you’re travelling.
- Abide by road trac regulations. Do not exceed 25 km/h in any event.
 WARNING
Risk of accidents: Uneven tyre pressure can have a huge eect on handling.
The pressure should be the same in both tyres.
- Check the tyre pressure before each journey
 CAUTION
Risk of crushing:
- There may be a very small gap between the loopwheel and the mudguard
with the risk that you could trap your fingers.
- Ensure that you always propel your wheelchair using the handrims only.

7.2 Braking during use
Whilst you are moving, you brake by transferring force to the push rim with your
hands.
 CAUTION
Risk of burning your hands:
- If you brake for a long time, a lot of frictional heat is produced at the push
rims
- Wear suitable gloves.
1. Hold the handrims and press evenly with both hands until the wheelchair stops.
7.3 Driving and steering a wheelchair fitted with Loopwheels™
You drive and steer a wheelchair using the push rims. Fitting Loopwheels™ to
your chair changes the feel of the wheelchair compared with spoked wheels.
Before driving without an assistant, accustom yourself to how the chair feels and
behaves.
Loopwheels are a suspension system. They are not rigid like spoked wheels and
don’t run as true as spoked wheels. Slight movement or lack of trueness is not a
fault, but is a feature of the product.
 WARNING
Risk of falling out of the wheelchair!
- When using Loopwheels™ on a wheelchair that you’re used to using with
rigid spoked wheels, the centre of gravity may change.
– Find your wheelchair’s tipping point and use Loopwheels™ initially with an
assistant
– Adjust your driving style accordingly.
 WARNING
Use of a wheelchair on rough terrain may be dicult especially if you’re used to
driving on flat surfaces.
- Adjust driving style and speed accordingly
8. TRANSPORT
8.1 Safety Information
 WARNING
NEVER transport an occupied wheelchair fitted with loopwheels™ in a vehicle.
It has not been designed for this purpose. ALWAYS transfer the wheelchair user
to the vehicle seat with the seatbelt on.
8.2 Transporting a wheelchair fitted with Loopwheels™ in a
vehicle
 WARNING
Injury or damage may occur from loopwheels™ or other wheelchair compo-
nents or accessories loosened during a collision or sudden stop.
Ensure your wheelchair, Loopwheels™ and accessories are securely stored in
the vehicle.
Remove Loopwheels™ from your wheelchair to transport it more easily in
a vehicle, by following the instructions in section 5 for removing and fitting
Loopwheels™.

9. MAINTENANCE
9.1 Safety Information
 WARNING
Some materials deteriorate naturally over time. Wheelchair manufacturers rec-
ommend that your wheelchair should be checked by a specialist dealer at least
once a year or if it has not been used for a long period. We recommend your
Loopwheels™ are included in this annual check.
9.2 Maintenance Schedule
To ensure safe and reliable operation, carry out the following checks and
maintenance regularly, or have the checks carried out by another person.
Weekly Monthly Annually
Visual Check X
Check Loopwheel Springs X
Check the push rims aren’t
working loose from the rim
X
Have your wheelchair
and wheels checked by a
specialist dealer
X
Check the tyre pressure X
Check that Loopwheels™
are seated correctly and
axles secure
X
Check the parking brakes X
Visual Check
1. Examine your wheels for loose parts, cracks or other defects.
2. If you find anything, have your wheels checked immediately by your
Loopwheels™ dealer or contact [email protected].
Check the springs of your Loopwheels™ - weekly
1. Examine the springs for any signs of wear, cracks, looseness or other defects.
2. Listen for any clicking or creaking sound from the wheels as they turn.
3. If you find anything, have your wheelchair checked immediately by your
loopwheels™ dealer or contact [email protected].
Check the push rims
1. Examine the pushrims for any signs of wear, cracks, looseness or other defects.
2. Listen for any sound coming from between the push rim and the rim: a nut
attaching the push rim to the wheel rim may have worked loose. Tighten all
nuts so the push rim is fitted snugly to the wheel. But don’t overtighten and
break the nut!
Check the tyre pressure
1. Check the tyre pressure – see 5.1.
2. Inflate the tyres to the required pressure.
3. Check the tyre tread at the same time.
4. If necessary, change the tyres.
Check that Loopwheels™ are seated correctly
1. Pull on the Loopwheel™ to check that the removable axle is seated correctly.
The wheel should not come off.
2. If the Loopwheels™ are not engaged properly, remove any dirt. If the problem
persists, have the removable axles re-fitted by a specialist dealer.
Check the parking brakes
 IMPORTANT
The parking brakes may need to be repositioned after replacing your rear
wheels with loopwheels™
1. Check that the parking brakes are positioned correctly. The brake is set correctly if the
brake shoe depresses the tyre by a few millimetres when the brake is applied.

2. If you find that the setting is not correct, have the brakes correctly set by a specialist
dealer.
 CAUTION
Loopwheels™ may sustain visibly undetectable damage as a result of a heavy
collision or hard blow.
- It is essential to have your wheelchair and loopwheels™ checked by a
specialist dealer after a heavy collision or hard blow.
9.3 Repairing or changing an inner tube
1. Remove the Loopwheel™ and release any air from the inner tube.
2. Lift one tyre wall away from the rim using a bicycle tyre lever. Do not use sharp
objects such as a screwdriver which could damage the inner tube.
3. Pull the inner tube out of the tyre.
4. Repair the inner tube using a bicycle repair kit or, if necessary, replace the
tube.
5. Inflate the tube slightly until it becomes round.
6. Insert the valve into the valve hole on the rim and place the tube inside the
tyre (the tube should lie right round the tyre with no creases).
7. Lift the tyre wall over the edge of the rim. Start close to the valve and use a
bicycle tyre lever. When doing this, check all the way round to ensure that the
inner tube is not trapped between the tyre and the rim.
8. Inflate the tyre to the maximum operating pressure. Check that no air is
escaping from the tyre.
9.4 Cleaning
Regular cleaning of your Loopwheels™ will help them last well. Regular cleaning
will reveal loose or worn parts and enhance the smooth operation of your
wheels. To operate properly and safely, your wheels must be cared for just like
any other vehicle wheels.
 IMPORTANT
Sand and seawater can damage the bearings, and steel parts can rust if the
surface is damaged.
- Only expose your loopwheels™ to sand and seawater for short periods, and
clean the hub with fresh water after every trip to the beach.
 IMPORTANT
- Do not use coarse abrasives, aggressive cleaning products or high pressure
cleaners.
Always use warm soapy water to clean
 IMPORTANT
- Do not use solvents or kitchen cleaners
1. Clean the metal parts with a soft, damp cloth.
2. Dry the hub carefully with a cloth after using it in the rain.
3. If the wheels are dirty, wipe off the dirt as soon as possible with a damp cloth
and dry them carefully.

10. TROUBLESHOOTING
10.1 Safety Information
Faults may arise as a result of daily use, adjustments or changing demands on the
wheels. The table below shows how to identify and repair faults.
 WARNING
– Contact your Loopwheels™ dealer immediately if you notice a fault with your
wheels, e.g. a significant change in handling.
 IMPORTANT
- Some of the actions listed must be carried out by a specialist dealer or by the
manufacturer. These are indicated.
10.2 Identifying and repairing faults
Fault Possible cause Action
The wheelchair does not
travel in a straight line
Incorrect tyre pressure on
one Loopwheel
Correct tyre pressure, see 5.1
One or more spring is
broken
Return wheel for repair
or replacement via your
specialist dealer
Wheel bearings are dirty
or damaged
Clean or replace the bearings
via your specialist dealer
The brakes are gripping
poorly or asymmetrically
Incorrect tyre pressure in
one or both tyres
Correct tyre pressure, see 5.1
Brake setting incorrect Correct the brake setting,
by seeking advice from your
specialist dealer
Rolling resistance is very
high
Tyre pressure is too low Correct tyre pressure, see 5.1
The wheel makes a clicking
noise
One or more spring is
loose or broke
Return wheel for repair
or replacement, via your
specialist dealer
The wheel makes a
shushing noise
One or more nuts fixing
the push rim to the rim is
loose.
Tighten any loose nuts.
Recommended torque is
2.5Nm
The wheel makes a
shushing noise
One or more rivnuts fixing
the push rim to the rim
has broken.
Contact your specialist
dealer.
There is sideways
movement when the wheel
spins; the wheel doesn’t run
“true:.
This is a natural characteristic of Loopwheels™ and is not
a fault. Loopwheels™ have more lateral movement than
spoked wheels. If you feel this is excessive, contact your
Loopwheels™ dealer or send a video to info@loopwheels.
com for advice.
11. AFTER USE
11.1 Storage
 IMPORTANT
Risk of damage to the product
- Do not store the wheels near heat sources.
- Never store other items on top of the wheels.
- Store the wheels indoors in a dry environment.
After long-term storage (more than three months) we recommend the wheels be
inspected in accordance to chapter 9 Maintenance.
11.2 Disposal
For correct disposal, contact your specialist dealer or ask your town or district
council about local waste management companies. Be environmentally aware
and dispose of your loopwheels™ properly. Disposal is subject to national and
local regulations.

12. TECHNICAL DATA
12.1 Dimensions and weight
Dimension and weight may alter according to different configurations of push
rims and tyres.
A Wheel diameter Extreme: 507mm (ETRTO 47-507mm)
Urban: 540mm (ETRTO 25-540mm)
Or 559mm (ETRTO 25 – 559mm)
B Wheel width at widest point (without push rim) 74mm
C Wheel width at hub 74mm
D Bearing width at faces 1.8 inches 45.8mm
E Weight (without push rim or tyres) Urban - 1.36kg
Extreme - 1.33kg
F Push rim offset
(distance between rim and push rim)
Loopwheels Urban has two options:
Narrow - 11mm
Wide - 19mm
Loopwheels Extreme: 15mm
G Maximum load 120kg
12.2 Environmental conditions
Do not expose the wheels to temperatures below -40 °C or above 40 °C.
12.3 Materials
The components in Loopwheels™ Urban and Extreme are made of the following
materials:
Springs («loops») Composite of Glass Fibre, Carbon Fibre and
cured Epoxy resins
Rim, hub and rim connectors Aluminium
Bearings Steel / Aluminium
Screws and bolts Steel / Titanium
Push rim Aluminium
Push rim spacer Polyamide (nylon)