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The heart of a revolutionary drive system: Gates CDX Belt
The Gates Carbon Drive Belt Drive System is a unique high-performance bicycle drivetrain system that offers smooth functionality 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 interested in long distances and rough off-road cycling, the CDX belt is the best choice. The ultra-modern high-performance belt has a weather-resistant polyurethane surface with strong, stretch-free carbon belt fibres. Choose from blue, red and black colour options to add a little extra flair.
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.
Application: Touring & Trekking, City, All Mountain, Cross Country
Width: 12 mm
- 1188 mm / 108 tooth
- 1221 mm / 111 tooth
- 1243 mm / 113 tooth
- 1265 mm / 115 tooth
- 1298 mm / 118 tooth
- 1320 mm / 120 tooth
- 1342 mm / 122 tooth
- 1375 mm / 125 tooth
- 1408 mm / 128 tooth
- 1430 mm / 130 tooth
- 1452 mm / 132 tooth
- 1738 mm / 158 tooth
- 1826 mm / 166 tooth
- 1848 mm / 168 tooth
- 1914 mm / 174 tooth
Tooth division: 11 mm
Material: Polyurethane, Carbon, Nylon
- CDX:EXP Belt Drive Sprockets
- CDX Belt Drive Sprockets
- CDX: high-end version for high loads and best performance
- suited for mud, sand, snow & ice and all roads
- medium guide groove (CenterTrack), high operating performance
- belts made of weather and wear-resistant polyurethane with carbon fibre tension tie beams for even greater strength
- wheel-optimised tooth profile
- ribbed back
- nylon teeth with dyed coating
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 Tester (North America only), the Eco Tension Tester, the Spring Tension Tester and the Gates Carbon Drive smartphone app.
Tension recommendations for Gates Carbon Drive 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:
1188 mm: 11M-108T-12CTS
1221 mm: 11M-111T-12CTS
1243 mm: 11M-113T-12CTS
1265 mm: 11M-115T-12CTS
1298 mm: 11M-118T-12CTS
1320 mm: 11M-120T-12CTS
1342 mm: 11M-122T-12CTS
1375 mm: 11M-125T-12CTS
1408 mm: 11M-128T-12CTS
1430 mm: 11M-130T-12CTS
1452 mm: 11M-132T-12CTS
1738 mm: 11M-158T-12CTS
1826 mm: 11M-166T-12CTS
1848 mm: 11M-168T-12CTS
1914 mm: 11M-174T-12CTS
- 1 x Gates CDX belt