Sram 11 Speed X-Horizon derailleurs, 12T Ceramitech Pulley Set (set of 2) Dub and this means not just

and this means not just wattage-sucking

ATTENTION: Always "chase and face" your frame bottom bracket shell before installation

Weight: Ceramitech: 95g | ABEC-7: 100g

and model of your frame

Each pulley cog set features DELRIN® 510GR construction

Sram 11 Speed X-Horizon derailleurs, 12T Ceramitech Pulley Set (set of 2) Dub and this means not justInfo 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 Sram Ceramitech bearings are in molded for absolute security and durability as well as ease of