SCHUBERTH C4 User manual

MANUAL
C4BASIC

2
THANK YOU FOR PLACING YOUR TRUST,
In our decades of experience in the development and manufacture of
motorcycle helmets. We’re delighted that you have chosen the SCHUBERTH C4
BASIC. Each and every C4 BASIC that leaves our factory has been made with
exquisite craftsmanship using state-of-the-art manufacturing techniques.
The SR2 features outstanding aeroacoustics and advanced ergonomics.
Perfected in a wind tunnel, the aerodynamics ensure stable helmet
performance at all times. Naturally, the C4 BASIC possesses the tried and
tested SCHUBERTH helmet features you have come to expect when it
comes to safety, comfort and designed. All these features, the stringent
quality requirements we place on the materials used, as well as our meticulous
craftsmanship, go together to make a quality product designed to meet
extremely high expectations in safety and reliability on the road – especially on
long journeys.
We wish you a safe ride.
Jan-Christian Becker Thomas Schulz
CEO SCHUBERTH GmbH Product Management SCHUBERTH GmbH
C4BASIC

EN
3
A. HOW TO USE THIS MANUAL CORRECTLY
Please take time to read through this manual carefully so that your helmet
protects you properly when riding your motorcycle. In order to ensure that
you do not overlook any aspect of the manual that is relevant to your safety,
we recommend that you read it in the order in which it appears.
Please play particular attention to:
Caution: safety instructions
Note: advice
Tip: practical tips
: see gure
Caution:
This helmet is not intended for use in the USA and Canada. The helmet has been
inspected and approved to the European ECE Standard and therefore does not conform
to US and Canadian regulations and requirements. It is only legal to use the helmet in
countries in which the European ECE Standard is valid. If you use the helmet in other
countries, you will not in the event of injury be entitled to make a claim for compensation
before the US or Canadian courts or the courts of other countries not bound by the ECE
Standard.
Caution:
We reserve the right to make changes that reect technical advances and
to do so without express notice.

4
B. CONTENTS
A. How to use the manual correctly 3
B. Contents 4
C. The helmet 6
1. Standard 6
2. ECE approval 6
3. Anatomy the helmet 7
4. Outer shell 7
5. Inner shell 7
6. Aerodynamics 8
7. Aeroacoustics 8
8. Wind deector 10
9. Chin bar 10
10. Chinstrap with Micro-Lock ratchet fastener 12
11. Visor with anti-fog lens 14
12. Sun visor 20
13. Inner lining 22
14. Ventilation systems 28
15. Additional safety features 30
D. Putting on the helmet and taking it o 31
1. Putting on the helmet 31
2. Taking o the helmet 32
E. Before every journey 33
1. Checking the helmet 33
2. Checking the chinstrap 33
3. Checking the face shield and sun visor 34

EN
5
F. For your safety 35
1. Safety advice concerning the helmet 35
2. Safety advice concerning the face shield / sun visor 36
3. Safety advice concerning modications / accessories 37
G. Maintenance and care 38
1. Outer shell 38
2. Chin section 38
3. Face shield and sun visor 38
4. Inner lining 40
5. Ventilation 40
6. Retention system 41
7. Storing the helmet 41
H. Accessories and spare parts 42
1. Accessories and spare parts 42
2. Ordering original SCHUBERTH parts 42
I. SCHUBERTH service 43
J. Warranty
44
K. How to contact us
45

6
1. STANDARD
The C4 BASICconforms to the ECE-R 22.05 standard. This testing norm
guarantees conformity to dened safety standards in respect of impact
absorption, visor, retention system and eld of vision. The certication applies to
all the countries of the European Union and all countries that recognise the ECE
standard. It also guarantees conformity with all insurance requirements that are
important in the event of a claim.
Please note that this C4 BASIC with ECE approval is not certied for the USA,
Canada or any other EU countries. It is only permitted for use in countries where
the ECE standard is valid.
Note:
The only SCHUBERTH helmets that it is legal to use in the USA, Canada
or other non-EU countries are those with the appropriate approval and
technical specications. Further information and details of sales outlets for
these helmets can be found on the internet at:
WWW.SCHUBERTH.COM
2. ECE-APPROVAL
ECE test standard
Certication number
Certifying authority
Serial number
051234/P-1234
05123456
C. THE HELMET

EN
7
3. ANATOMY OF THE HELMET
4. OUTER SHELL
The outer shell of the C4 BASIC helmet combines an aerodynamically optimal
shape with consistent protection. It consists of a special glass-bre reinforced
duroplastic matrix developed by SCHUBERTH, which gives the helmet the high
level of strength needed for your protection.
Caution:
The safety helmet is designed to absorb the eects of only one impact.
The helmet must be replaced after a fall, accident or any other impact.
5. INNER SHELL
For optimised impact absorption properties, the inner shell of the helmet
consists of several components. The complex multi-segment foam padding of
the main body provides better absorption and dissipation of impact forces and
gives you the highest level of safety. The large side panels ensure the helmet
sits optimally and comfortably.
Face shield
Reective panels
Sun visor
Inner lining
Face shield
ventilation
Chin bar release
Integrated antennas
Head ventilation
Inner shell
Anti-fog lens
Visor mechanicsk
Outer shell
Retention system
(with anti-roll-o
system)
Operating slide for
sun visor
Chinstrap buckle

8
6. AERODYNAMICS
Wind noise is low with the C4 BASIC, both for race-riding and during long
touring rides. The C4 BASIC produces practically no uplift even at speed.
Note:
Please note that the strong eddy currents that can occur as a result of
the fairing on faired motorcycles may have a signicant eect on the
aerodynamic characteristics of a helmet.
7. AEROACOUSTICS
Various features developed in SCHUBERTH’s wind tunnel make the helmet
notably quiet as far as aeroacoustics are concerned, while providing optimised
hearing capability when riding. This enhances concentration, especially at high
speeds.
Note:
Aeroacoustic values may vary according to the type of motorcycle, fairing
design, seat position and physical size of the rider.
Caution:
As a result of the aeroacoustic optimisation of the helmet (and the lower
wind noise inside the helmet that comes with it), your actual speed can
easily be underestimated. Please do not rely on your sense of hearing to
estimate your road speed - always check it using your speedometer.
C. THE HELMET

EN
9
Note:
With faired motorcycles, strong eddy currents occur at the edges of
the wind shadow. These may signicantly reduce the aeroacoustic
performance of the helmet. The motorcycle fairing should be adjusted so
that the turbulence created does not reach the bottom surface of the
helmet.
aeroacousitcally non-critical area
aeroacoustically critical area
aeroacousitcally non-critical area
Turbulators
The patented turbulators on the top of the face shield also
optimise the aeroacoustic properties when riding and
prevent acoustic disturbances in the form of whistling
sounds that can be created by smooth and straight
edges.

10
8. WIND DEFLECTOR
The wind deector prevents the unpleasant eect of the wind created as you
ride owing into the helmet. In addition, the riding noise in the helmet is
reduced.
The wind deector is attached by Velcro strips
on the inside of the acoustic collar and can be
removed when required to provide an additional
ow of fresh air, especially in hot weather.
Tip:
The t of the bottom of the helmet is extremely important in ensuring
that the helmet is as quiet as possible. If you have a smaller neck size, we
recommend that you also wear a scarf.
9. CHIN BAR
The C4 BASIC is equipped with a chin bar that pivots up and can be easily
opened and closed by means of the operating element located in the middle
of the chin bar. The movement of the section required for this is optimised for
convenient, smooth operation.
OPERATION
The chin bar can be opened at any time irrespective of the position of the visor
or sun visor. The sti, positive engagement at the end of travel ensures the chin
bar remains safely in place when raised.
C. THE HELMET

EN
11
OPENING THE CHIN BAR
1. Open the chin bar by sliding the red button
located in the middle of the chin zone
forwards in the direction of the arrow as far
as it will go, using your thumb.
2. The chin section ips right up.
CLOSING THE CHIN BAR
To close the chin bar, pivot it down with
one hand until both locks audibly engage.

12
Note:
Each time you close the chin bar, check that the locks have engaged
properly by pressing the chin bar upwards.
Tip:
When using the additional adjustable wind deector, locking the chin bar is
easier if you grip the chin pad underneath with a nger of your other hand
to help you ease the chin bar over your chin.
Caution:
Never ride with the chin bar raised.
10. CHINSTRAP WITH MICRO-LOCK RATCHET FASTENERS
The C4 BASIC is tted with a ratchet strap. This
locking system is easy to use and enables you to adjust
the chinstrap perfectly to your head every time you put
the helmet on.
ADJUSTING THE CHINSTRAP
The length of the chinstrap is adjusted by increasing or reducing the length of
strap pulled through the metal buckles. Adjust the length of the chinstrap so
that it ts rmly but comfortably under your chin and x the end of the strap
using the retaining loop with comfort pad.
C. THE HELMET

EN
13
Caution:
When adjusting the strap, make sure that the helmet cannot be pulled o
in a forward direction with the chinstrap closed.
Caution:
Check the adjustment of the chinstrap length at regular intervals.
OPENING AND CLOSING
To close the chinstrap fastener, slide the ratchet tongue step by step into the
locking buckle. If you nd that the chinstrap ts too loosely around your chin,
slide the ratchet tongue one step further into the locking buckle. When adjusting
the chinstrap, make sure that it rests rmly but not uncomfortably around your
chin. To open the chinstrap, pull the red ribbon on the ratchet fastener upwards
to release the locking buckle. Then pull the ratchet tongue out of the locking
buckle.
Caution:
Never ride without making sure that the chinstrap is correctly fastened
and adjusted and properly positioned. If the chinstrap is not correctly
adjusted or fastened, the helmet could be displaced in the event of an
accident.
Caution:
Never open the chinstrap while riding.

14
11. VISOR WITH ANTI-FOG LENS
The visor is a fog-free double-lens visor. By xing the inner anti-fog lens using
eccentric pins, the two visor panes are pre-tensioned together and are thereby
sealed. An insulating air cushion is thus formed between the visor’s main plate –
i.e. the outer plate – and the inner plate, which prevents any fogging up of the
inner plate.
COATING
The main visor has an anti-scratch coating.
Note:
The helmet should never be used to hold gloves or any other objects as
this may damage the scratch-sensitive anti-fog lens.
Note:
The anti-fog lens is supplied with a protective lm. Remove this lm before
using the helmet for the rst time.
OPENING THE FACE SHIELD
To open the face shield, use your thumb to push
the face shield up using one of the nger tabs
situated to the left and right of the face shield,
and move it to the desired position.
FACE SHIELD (INCLUDING URBAN POSITION)
The second position (urban position) locks in place more rmly, providing
greater resistance when the face shield is in this position. This makes it easier
to lock the face shield in the urban position, especially while riding.
C. THE HELMET

EN
15
• When you push the face shield open, it may well travel beyond the urban
position
• but it is easy to nd this position by moving it downwards again. The face
shield mechanism requires no additional lubrication. The face shield can be
operated at any time irrespective of the position of the sun visor.
CLOSING THE FACE SHIELD
To close the face shield, grip the nger tabs at
top left and right and press the face shield down
with one movement until it audibly locks into
place.
REPLACING THE VISOR SHIELD
Changing the face shield is easy to do without tools using the convenient
EasyChange mechanism. To replace the face shield, it is helpful to place the
helmet on a at surface or on your lap while seated.
Removing the face shield
1. Move the face shield into the
uppermost locked position.

16
2. Press the spring underneath the face shield
mechanism on one side towards the face shield
opening, then do the same with the spring on the
other side.
3. Move the face shield upwards until it is released
from the face shield mechanism.
Installing the face shield
1. Using both hands, guide the face shields
locking studs into the respective recesses in
the face shield mechanism.
2. The face shield will then audibly lock into place
when you press it gently towards the helmet
with a simultaneous closing movement.
C. THE HELMET

EN
17
3. Check the function of the visor mechanism
by closing the visor once and opening it as
far as possible.
ANTI-FOG LENS
Fitting
1. Lay the anti-fog lens in the face shield in such
a way that one side of it is already slotted into
the locking pin.
2. Now grasp the other side of the antifog lens by
its upper and lower transverse edges and use
your index nger to gently press the end of the
visor into a slight "S" shape. Now you can easily
guide the slot over the locking pin and release
the anti-fog lens into place.
3. The anti-fog lens should now be
positioned in the face shield with its
lower edge parallel to the lower edge of
the face shield. If you need to change
the positioning of the anti-fog lens, use
the balls of your thumbs to gently bend
the face shield apart until the inner visor
can be adjusted as required.

18
4. Check all around the anti-fog lens to make sure that it ts tightly and
evenly against the face shield. Only if this is the case will the anti-misting
properties function properly.
5. If you have not done so already, remove the protective lm from the anti-
fog lens.
Removal
1. Before starting to remove the antifog lens, rst lay the face shield on a
soft, clean cloth so that its top edge is facing you.
2. To reduce the pretensioning of the
antifog lens slightly if necessary, use the
balls of your thumbs to carefully bend
the face shield suciently apart while
applying pressure with your thumbs to
release the anti-fog lens and move it
approx. 2–3 mm forward.
3. Now grip the back of the anti-fog lens
with your index and middle ngers and
lift it o the face shield. In this position
you can easily remove the anti-fog lens
from the locking pin with your thumb.
4. You can now remove the anti-fog lens
from the face shield.
C. THE HELMET

EN
19
Note:
To avoid scratching the face schield, never remove or t the anti-fog lens
unless the visor unit is clean and dry.
When tting the anti-fog lens, check that neither dust nor moisture are
able to get between the two surfaces.
When removing or tting the anti-fog lens, it is always best to lay the face
schield unit on a clean, dry cloth.
Note:
In view of the strong air pressure acting when travelling with an open
face shield, we recommend riding with a closed face schield at all times to
prevent any dirt or moisture from getting inside the helmet.
Note:
Never press the locking pins out with your ngers as they may break.
Caution:
As a result of the double lens structure, there is a possibility of greater
light reection in the face schield, especially when riding at night. As a
rule, such light reection is regarded as uncritical due to the absence of
fog with this type of visor. However, if this light reection should cause
you diculties – because of particular sensitivity to it, for example – you
should refrain from using the anti-fog lens.
Caution:
If moisture is present in or has penetrated the airtight area between the
two plates, you should remove the anti-fog lens immediately in order to
prevent any interference with visibility. Do not re-t it until both plates are
completely dry (we recommend air-drying). If you should subsequently
detect any further penetration of moisture, the anti-fog lens should not be
used on any account and must be replaced.

20
Safety note
Check before each journey that the face shield and sun visor mechanism are
functioning correctly and that the face shield and sun visor will provide good
visibility. Any dirt should be removed before setting o. Check the face shield
and sun visor for physical damage and cracks. Severely scratched or scued
face shields will seriously impair visibility and should be replaced before setting
o on a journey.
Caution:
Petrol, solvent and fuel vapours can cause cracking of the face shield.
Make sure that the face shield is never exposed to such vapours! Never
place the helmet on the tank of your bike.
12. SUN VISOR
SUN VISOR
The sun visor is scratch-resistant and uses a special polycarbonate to ensure
eective protection against harmful UV radiation.
Operation
The sun visor is operated by means of the slide
positioned on the left in the chin area, which is
easy to use even when wearing gloves. Moving
the slide towards the back lowers the sun visor,
moving it forwards retracts the sun visor inside
the inner helmet shell and locks it in position.
The sun visor can be operated irrespective of
the position of the face shield.
The maximum opening position of the sun visor can be set in a choice of two
latched positions using the limiter. The limiter is on the running edge of the sun
visor slider.
C. THE HELMET