NuVinci Nfinity Series User manual

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TECHNICAL OWNER MANUAL
TECHNICAL OWNER MANUAL
NUVINCI OPTIMIZED CVP WITH
NFINITY CABLE SHIFT SYSTEM
MANU-NFIN-00
EN
DE
30-58
1-29
59-88
89-116
NL
FR

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TECHNICAL OWNER MANUAL
Table of contents
1. NuVinci Optimized products 3
1.1 Nfinity 330TM and Nfinity 380TM Series Drivetrains 3
1.2 The NuVinci Optimized CVP 3
2. Nfinity operation & care 4
2.1 Shifting Nfinity Systems While Riding 4
2.2 Shifting Nfinity Systems While Stopped 4
2.3 Adjusting Cable Slack 5
2.4 Disconnecting the Rear Wheel 6
2.5 Fitting the Rear Wheel 7
2.6 Cleaning & Lubrication 8
2.7 Wear Parts & Repair Work 8
3. Nfinity assembly of components 9
3.1 Wheelbuilding 9
3.2 Installing the Sprocket 10
3.3 Nfinity Hub Interface
Compatibility & Orientation 11
3.4 Installing the Nfinity Hub Interface 12
3.5 Installing the Shifter 13
3.6 Installing Shift Cable Housing 14
3.7 Installing Shift Cables and Hardware 15
4. Nfinity service instructions 16
4.1 Replacing Shifter Cables 16
4.2 Resetting CVP to Full Overdrive 18
4.3 Servicing or Replacing Freewheel 20
4.4 Removing Brake Configurations 21
4.5 Installing Brake Configurations 22
5. Nfinity technical data 23
5.1 CVP Specifications 23
5.2 Approved Gearing 24
5.3 Exploded View 25
5.4 CVP & Nfinity Shifter Dimensions 26
6. Intellectual property notice 27
7. Warranty 28
European Support and Service 29
North American Office 29

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1.1 Nfinity 330 and Nfinity 380 Series
Drivetrains
The Nfinity series of mechanical shifting
drivetrains are the first continuously variable
systems for bicycles, allowing the rider to
control the ratio of NuVinci Optimized CVPs
simply by rotating the shifter grip.
Static (Nfinity C3TM) or dynamic indicators
(Nfinity C8TM and Nfinity C8sTM) show ratio as
a simple graphic; a hill for slower speeds and
a flat for faster speeds. Since there are no
fixed gears, the exact ratio is determined by
the rider’s comfort level. Ratio changes can be
made even while pedaling under high torque.
1. NuVinci Optimized products
1.2 The NuVinci Optimized CVP
The NuVinci Optimized technology is a
continuously variable planetary (CVP)
drivetrain offering an infinite number of ratios
inside its wide ratio range.
Ratio changes occur within the hub smoothly
via internals that are sealed for life and
maintenance-free.
NUVINCI OPTIMIZED PRODUCTS
The HarmonyTM series of intelligent drivetrain
systems are the first continuously variable automatic
shifting systems for bicycles.
Review the Harmony online manual if your bicycle
is configured with the Harmony series of electronic
shift systems.

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2. Nfinity operation & care
2.1 Shifting Nfinity Systems While Riding
• Shifting into low ratios for starting or
climbing
- Using the Nfinity grip, rotate in the
direction indicating more of a “hill” (A)
• Shifting into high ratios for higher speeds
- Using the Nfinity grip, rotate in the
direction indicating more of a “flat” (B)
2.2 Shifting Nfinity Systems While
Stopped
• NuVinci Cycling CVPs cannot be shifted
completely through the ratio range while
stopped
• 50-70% of the shift range is typically
accessible, with the remainder accessible
with very little pedal rotation
NFINITY OPERATION & CARE
A
B
A
B

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NFINITY OPERATION & CARE
C
D
2.3 Adjusting Cable Slack
All controller related explanations show for
the C8 controller apply to all other controllers.
• Cable slack can be adjusted with the
barrel adjusters (C) at the shifter.
• Cable slack can be determined by pulling
lightly on the cable housing (D) at the
shifter and noticing any slack.
- 0.5mm of slack is ideal. Cable slack of
more than 2.0mm may cause decreased
shift performance and shift cable durability.
• For rear wheel removal, additional cable
slack may be desired to ease shift cable
hardware removal, which can be obtained
with the barrel adjusters.
0,5mm

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TECHNICAL OWNER MANUAL
NFINITY OPERATION & CARE
2.4 Disconnecting the Rear Wheel
1. Shift to a position that allows easy access
to the shift cable hardware.
2. Remove shift cable hardware following
steps and .
3. Loosen and/or remove the axle nuts (A)
and the no-turn washers (B) on both sides.
- For rim or roller brake applications,
disconnect the rear brake according to the
manufacturer’s instructions.
4. Remove the rear wheel.
1 2 3
1
2
3
A
B

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NFINITY OPERATION & CARE
2.5 Fitting the Rear Wheel
1. Place the rear wheel into the rear frame,
making sure not to obstruct shift cables.
2. Slide one no-turn washer (A) each onto
each axle end. The serrations of the no-turn
washer must bear against the dropout
of the frame. The rectangular boss must
engage in the dropout of the frame.
3. Mount the axle nuts (B). Tightening torque
30-40 Nm (266-350 in-lbs).
- For rim and roller brake applications,
connect the rear brake according to the
manufacturer’s instructions.
Improper installation of the no-turn
washer may result in damage to the
dropout and the hub.
Over-tightening may damage parts.
Under-tightening can result in the axle
sliding in the dropouts.
4. Install the shift cable hardware following
steps and
1 2 3
1
2
3
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A
B

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NFINITY OPERATION & CARE
2.6 Cleaning & Lubrication
• Your NuVinci Optimized components are
sealed and well protected from the external
environment. However, do not use water
under pressure (such as pressure washers
or water jets) for cleaning to prevent
malfunctions due to water penetration.
• During the winter, you should clean your
bicycle in shorter intervals so that winter
road salt cannot cause any damage.
• Do not use aggressive cleaners
• The NuVinci Optimized CVP is provided
with permanent lubrication and the CVP
internals are maintenance-free for the life
of the product.
• The NuVinci Optimized CVP internal
freewheel mechanism is serviceable.
• Regular lubrication will extend the chain’s
service life.
2.7 Wear Parts & Repair Work
• Handlebar grips, sprockets, and bike
chains are wear parts. Please check
these parts regularly and replace them as
necessary.
• Only a qualified bike dealer should
perform any necessary work on the
NuVinci Optimized CVP, Nfinity shift
system, or Harmony shift system.
• Unauthorized work on your NuVinci
Optimized CVP, Nfinity shift system, or
Harmony shift system could endanger you,
and your warranty may become void.
• Please contact your qualified bike dealer
regarding any questions or problem you
may have.
• Refer to our website for additional service
information at
www.nuvincicycling.com/service

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3. Nfinity assembly of components
NFINITY ASSEMBLY OF COMPONENTS
3.1 Wheelbuilding
• The anti-shift retainer (A) provides 135mm
spacing, and should remain on the CVP
during lacing and wheelbuilding.
- Maximum spoke diameter is #13/
2.34mm
- Minimum spoke diameter is #14/
2.00mm
• Suggested lacing is a 2-cross pattern for
26 inch and 700c wheels.
-Use a 2-cross pattern only if the rim allows
the nipples to be effectively in-line with the
spokes.
• For 24 inch or smaller wheels a 1-cross
pattern is suggested.
• Radial lacing is not recommended.
A
Installation and repairs must be made
by a qualified bicycle mechanic.
This section assumes a level of
knowledge and skill consistent with
that of an experienced bicycle
assembler or bicycle mechanic.
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135 mm

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NFINITY ASSEMBLY OF COMPONENTS
A
B
C
D
• See section 5.1 (for chainline and beltline
specifications)
• The NuVinci Optimized CVPs are
compatible with 16 to 28 tooth sprockets.
See section 5.1 for sprocket ratio
requirements and approved gearing
3. If a Nfinity Hub Interface is not installed
immediately following the sprocket, replace
the anti-shift retainer (A)
3.2 Installing the Sprocket
1. Remove the anti-shift retainer (A) by pulling
firmly away from the NuVinci CVP
2. Install a standard 9-spline 3/32 inch
(2.3mm) sprocket (B) with the flat side
facing the CVP, followed by the supplied
sprocket spacer (C, if required), and secure
with the sprocket snap ring (D).
• The sprocket spacer is intended for
sprockets that are 3/32 inch (2.3mm) thick
at the inner diameter. If the inner diameter
is 0.17-0.18 inch (4.3-4.5mm) thick, the
spacer should not be used.
Use of incompatible chains can
result in interference with the Nfinity
Hub Interface and damage to CVP
components and may result in a dangerous
condition for the rider.
NuVinci Optimized CVPs are
incompatible with 1/8 inch
(3.18mm) single-speed chains and
sprockets that are flat on at least one side.
Use 3/32 inch (2.3mm) chains and sprockets
only.
If the sprocket is asymmetric, incorrect
installation can result in interference
with the Nfinity Hub Interface and
damage to CVP components and may result
in a dangerous condition for the rider.
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Nfinity 330 systems are compatible
with mid-motor eBike systems rated
at 250W or less. See section 5.2 for
approved gearing tables.
Nfinity 380 systems are compatible with mid-
motor eBike systems rated at 350W or less.
See section 5.2 for approved gearing tables.
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