Sram X4 Rear Derailleur Hybrid Bikes Extremely durable and grippy

Extremely durable and grippy

This is the same exact frame ridden by the pros of Trek-Segafredo

Battery - 36 v 14 AH (504Wh)

A dependable and low-maintenance Shimano Nexus 7-speed internal drive train

Evo Compound – High-tech formulation that provides excellent grip and low rolling resistance at the same time

Sram X4 Rear Derailleur Hybrid Bikes Extremely durable and grippySHIFTING PERFORMANCE Leveraging the legendary history of SRAM shifting, the X4 rear derailleur provides great shifting performance. SPECIFICATIONS Speed (RD): 9 8 7s Cable pull ratio: 1: 1 Cage (RD): Long Max tooth: 34 Pulley bearings material: Steel Cage material (RD): Aluminium