Description:Electric bike chainring offset correction for for BBS 01 02 HD

Made of aluminum alloy material, durable and practical

Narrow wide teeth design increases the contact area with the chain without worrying chain dropped

Designed to reduce friction and noise and lightweight won't add any burden to your bike

Suitable for electric bike modification, repair or refit etc

Specification:Surface roughness: About 120 meshNumber of gear teeth: 42TPitch: support 6-7-8-9-10-11 speed chainsMaximum diameter: 175mmMaximum height: 19

5mmTooth pitch: 12

7mmThreaded hole diameter: 5

2mmInner hole diameter: 41

2mmbbs Offset: 9MMPackage Includes:1 Piece Electric Bike Chainring Offset CorrectionNote:Please allow slightly errors due to manual measurement and different monitors