Shimano Altus RD-M310 7-8 Speed Rear Derailleur Black Travel XOD D710 front brake with

XOD D710 front brake with Ringht and lever

It is a direct replacement to fit on the Ersin Hybrid

Unrestrictedbikes solution to this problem is to only use Fast chargers

This durable Ebike screen can be 4 digit pin locked internally

This kit does not include Screen

Shimano Altus RD-M310 7-8 Speed Rear Derailleur Black Travel XOD D710 front brake withThe Shimano RD M310 Altus SGS Rear Derailleur Black is a 7 8 speed MTB style component group for city sport and youth bikes. In addition to an excellent cost performance, ALTUS provides a feeling of "easy control" that inspires confidence, especially among novice cyclists and younger riders.