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At the heart of a revolutionary drive system: Gates' CDN Belt
The Gates Carbon Drive belt drive system is a unique high performance bicycle drive that is quiet and low maintenance. Gates Carbon Drive Belts are clean, smooth and strong, and are designed to meet the needs of all cyclists. If you're a casual urban rider, the CDN Carbon Drive belt, with nine carbon strands and a polymer body, is the right choice.
OEM Packaging: This item comes from the original equipment manufacturer and is lacking the retail packaging.
Guidelines for replacing E-bike components:
Before you replace components on your E-bike, please read through the guidelines for component replacement for CE-marked E-bikes/pedelecs with pedal assistance.
Width: 12 mm
- 1221 mm / 111 tooth
- 1243 mm / 113 tooth
- 1265 mm / 115 tooth
- 1298 mm / 118 tooth
- 1320 mm / 120 tooth
- 1342 mm / 122 tooth
Tooth division: 11 mm
Material: Polymer, Carbon, Nylon
- CDN Belt Drive Sprockets
- CDX Belt Drive Sprockets
- not approved for MTB or trekking (increased wear)
- not approved for mid-drives
- CDN level: economical CenterTrack version
- suited for city and asphalt roads
- middle guide groove (CenterTrack)
- Belt made of high-tensile modulus polymer with carbon fibre tension members for even more strength
- wheel-optimised tooth profile
- durable nylon teeth
Note: To calculate the correct belt length, please refer to the Gates Carbon Drive Belt Calculator.
Gates Carbon Drive System
Clean, smooth and robust - these are the main advantages of the Gates Carbon Drive System. Developed by Gates Corporation, a global leader in belt drive technology, this system encapsulates a unique drivetrain with high mileage capability. Whether you are an urban commuter, mountain biker, e-bike user or recreational rider, Gates Carbon Drive has a solution to fit your needs. Liberate yourself from oily, rusty chains and join the Gates Carbon Drive Revolution.
Clean: No lubricant means no accumulation of grease and dirt.
Smooth and silent operation: no metal-to-metal contact of the chains.
Light: The whole system weighs less than a standard bicycle chain.
No elongation: Belt does not need to be re-tensioned or replaced.
Self-cleaning: CenterTrack and MudPort profiles are specially designed to repel mud, dirt, snow or other contaminants.
Long service life: Tests have shown that CDX Carbon Drive belts last twice as long as bicycle chains.
Consistent efficiency: The drive boasts a long service life compared to that of a conventional chain, where efficiency is significantly reduced by wear or dirt.
Installing a Gates Carbon Drive Belt Drive requires a specially-made frame, therefore we strongly advise against using one to modify a conventional framework.
For optimal function of the Gates Carbon Drive System, correct belt tension is essential. Common tension adjustment systems include inclined or vertical dropouts, horizontally sliding dropouts (not recommended by Gates) and eccentric bottom brackets.
There are several common methods to measure the tension of your Carbon Drive system: the Gates Krikit gauge (North America only), the Eco Tension Tester, the Spring Tension Tester and the Gates Carbon Drive smartphone app. Gates Carbon Drive tension recommendations are as follows:
- Off-road and urban - soft and even step style: 40-60 Hz (35-45 lbs)
- Off-road and urban - strong and hard stepping style: 60-75 Hz (45-53 lbs)
- Internally geared hubs: 35-50 Hz (28-40 lbs)
- Tandem: 60-65 Hz (45-48 lbs)
- Shimano STEPS: 35-45 Hz (28-35 lbs)
Manufacturer Part Numbers:
1221 mm: 11M-111T-12CTS CDN
1243 mm: 11M-113T-12CTS CDN
1265 mm: 11M-115T-12CTS CDN
1298 mm: 11M-118T-12CTS CDN
1320 mm: 11M-120T-12CTS CDN
1342 mm: 11M-122T-12CTS CDN
- 1 x Gates CDN Belt