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- Online since 1998
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Guidelines for the parts replacement of E-bikes:
Please follow the Guidelines for the parts replacement of CE marked E-bikes / pedelecs with pedal assist.
Application: City, E-Bike
Sprocket Mount: 130 mm bolt circle diameter, 5-arm
Crankarm Material: aluminium
Sprocket Material: composite
Gradation: 46 tooth, 50 tooth, 55 tooth
Crankarm Length: 170.0 mm, 175.0 mm
Beltline: depends on internal geared hub
Compatible BSA Bottom Bracket Shell Width: 68 mm
Recommended Bottom Bracket: square JIS (e. g. Shimano BB-UN55)
Recommended Belt: CDN belt (pitch 11 mm)
- CDN: lower priced CenterTrack Variant
- suitable for paved roads and city
- pre-assembled, saving time and expense
- provides the specific belt line required
- concentric assembly minimizes variation of belt tension
- crankarms black anodized
Note: The CDN cranks are not authorized for Mountain or Trekking use (will result in quicker wear) and not authorized for use with middle motors.
Gates Carbon Drive System
The technology behind Gates Carbon Drive System is rooted in high horsepower motorcycles and dragsters. Now, this high performance technology has been perfected for a wide variety of bicycles. At the core of the drive is the Carbon Drive belt. Custom made, this carbon-fiber belt is a strong and efficient replacement to a traditional bike chain. The drive is completed with the innovative sprocket designs and your choice of internally-geared or single-speed hub. The patented Gates Carbon Drive System gives you a longer-lasting, lower-maintenance drive, and most importantly, an unbelievably awesome ride.
CLEAN - LOW MAINTENANCE: No lube required = no grease stains. It sheds dirt and grime and cleaning with water is easy. Just get on it and ride.
QUIET: No chain = no chain clatter. It's spooky quiet.
LIGHT: Gates Carbon Drive weighs less than a chain drive. Lighter weight means
STRONG: The instant engagement and smooth feel is unlike anything you've
experienced before. You've got to ride it to believe it.
Manufacturer Part 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
- 1 x Kurbelarm Gates S250 right crankarm
- 1 x Kurbelarm Gates S250 left crankarm
- 1 x Gates CDN sprocket, pre-assembled (46, 50 or 55 tooth)
- 1 x Gates belt guard
- mounting bolts included
- bottom bracket not included