D: If the distance 5cm, need break a shape like the C picture shows, need carefully to choose. Pure electric distance: 15-25km. Motor: DC brushless 200W.
CN(Origin)
Shimano CN-HC40 6 7 8 Speed Bicycle Chain 116 Links Road MTB Hybrid HG40 New-USA
SHIMANO TOURNEY TY – 6, 7, 8-Speed – HYPERGLIDE MTB Chain. The HG-40 chain is designed for precise index shifting on 6, 7, and 8-speed HYPERDRIVE SIS and DUAL SIS drivetrains. HG chain for precise HYPERDRIVE SIS/DUAL SIS index shifting.
