Gates CDN S250 Crankset with Protective Ring
Item number: 83786
The Gates S250 crankset has a partially matt, partially polished finish, and comes with a pre-mounted CDN belt drive sprocket and an aluminium protection ring. This saves time when setting up the belt drive for your city bike.
The main advantages of the Gates Carbon Drive system are cleanliness, smoothness and robustness. Urban commuters as well as mountain bikers, e-bike users or leisure riders benefit from the high mileage. Oil-stained or rusty chains are a thing of the past.
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.
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.
Specifications:
- Application:
- City
- Belt sprocket attachment:
- 130 mm bolt circle diameter, 5-arm
Technical Information:
- Series:
- CDN
- Crank Arm Material:
- aluminium
- Belt drive sprocket material:
- composite
- Gradation:
- 46 tooth, 50 tooth, 55 tooth
- Crank Arm Length:
- 170.0 mm, 175.0 mm
- Belt line:
- depends on the gear hub
- Compatible BSA Shell Width:
- 68 mm
- Recommended Bottom Bracket:
- 4-sided JIS (e.g. Shimano BB-UN300, Thun Zumba)
- Belt (rec.):
- CDN belt (tooth pitch 11 mm)
Note from the manufacturer:
The CDN system is not approved for mountain bikes, e-bikes with a mid-drive motor or gearbox, bikes without gears, or touring bikes.Features:
- CDN level: cost-effective CenterTrack variant
- suited for city and asphalt roads
- middle guide groove (CenterTrack)
- crank with mounted CDN pulley: time saving during set-up
- with belt protection ring made of aluminium, mitigating damage
- generates the required belt line
- black anodised crank arms (partially matt, partially polished)
Technology:
Gates Carbon Drive SystemThe main advantages of the Gates Carbon Drive system are cleanliness, smoothness and robustness. Urban commuters as well as mountain bikers, e-bike users or leisure riders benefit from the high mileage. Oil-stained or rusty chains are a thing of the past.
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.
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.
Manufacturer Numbers:
- 170.0 mm 46 tooth:
- FC250 170 BKC465 CDN000 GDBK
- 175.0 mm 46 tooth:
- FC250 175 BKC465 CDN000 GDBK
- 170.0 mm 50 tooth:
- FC250 170 BKC505 CDN000 GDBK
- 175.0 mm 50 tooth:
- FC250 175 BKC505 CDN000 GDBK
- 170.0 mm 55 tooth:
- FC250 170 BKC555 CDN000 GDBK
- 175.0 mm 55 tooth:
- FC250 175 BKC555 CDN000 GDBK
Contents:
- 1 x Gates S250 right crank arm
- 1 x Gates S250 left crank arm
- 1 x Gates CDN Belt Drive Sprocket, mounted (46, 50 or 55-tooth)
- 1 x Gates protective ring, mounted
- 2 x crank bolts
- 100 day return period
- Online since 1998
