Shimano 10/11 spd Road Ceramitech Pulley, Lower Only for Brompton 30mm These Shimano 11-speed Ceramitech pulleys

These Shimano 11-speed Ceramitech pulleys blow the stock MTB pulley wheels away when it comes to spin

All BBInfinite DUB bottom bracket modules are 100% compatible with all crank-based power meters

WS2: 118g | CERAMITECH: 120g | ABEC-7 SS: 125g

DUB SB+ MTB Cranks Insert Chart

WS2: 87g | CERAMITECH: 89g | ABEC-7 SS: 92g

Shimano 10/11 spd Road Ceramitech Pulley, Lower Only for Brompton 30mm These Shimano 11-speed Ceramitech pulleysInfo Product Intro Vid Maintenance Vid Rock solid chain control means crisper shifts while Ceramitech bearings channel all your hard work to the ground. Each cog set features DELRIN 510GR construction, a fiber reinforced polymer specially suited to high strength situations where resistance to deflection is paramount, such as every time you shift. The Ceramitech bearings are in molded for absolute security and durability as well as ease of maintenance.