4 arm E-bike chainring, BCD-104mm, for hub gear drivetrains.

• Compatible with Bosch(gen. 3 and gen. 4), Shimano Steps and other E-bike systems in combination with a BCD 104mm spider.
• Compatible with 9-12 speed chains
• Made from hardened steel for an extra long lifetime
• Chainring bolts not included
• Compatible with: Derailleur drivetrains
• Part materials: Carbon steel
• Crankset type: Single
• Gears: 9-speed, 10-speed, 11-speed, 12-speed
• Arm quantity: 4 arm crankset
• Bolt Circle Diameter: 104mm
• Sizes: 36T, 38T, 42T, 44T