CSIXX Derailleur Pulley Wheel T-Shirts while the EnergyPak 400Whr has

while the EnergyPak 400Whr has an average range of 100 km and can reach 150 km*

The outer fabrication sports four-way stretch functionality

Suggested cut down marks

and performance

Anti Slip coating on inside

CSIXX Derailleur Pulley Wheel T-Shirts while the EnergyPak 400Whr hasAluminium Pulley Wheels for SRAM and Shimano Derailleurs CNC machined from 7075 T 6 Aluminium for maximum lifespan. Our tooth profile has been refined to ensure minimal noise. Large cutouts to keep the weight down, prevent grass, mud and chain lube build up. We use a sealed cartridge bearing for maximum durability, easy replacement and less friction. Less Drag Crisper Shifting Longer life span Lighter We are now on our 4th design version of these