Sram 11 Speed X-Horizon derailleurs, 12T Ceramitech Pulley Set (set of 2)

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.

The Ceramitech bearings feature an enhanced MTB seal and are filled with Kluber IsoFlex NB52 for smooth running. They blow the stock pulleys away when it comes to spin, but do not spin for minutes on end like our road 12T bike pulleys do, and this is due to necessary, off road enhancements for durability.

BBInfinite ceramic 12T pulleys have a 1-Year warranty.

Both black or red Sram derailleur pulleys are compatible with:

EX1 X-HORIZON™ REAR DERAILLEUR

GX 1x11 X-HORIZON™ Rear Derailleur

GX DH 1x X-HORIZON™ Rear Derailleur

GX Eagle™ Rear Derailleur

NX 1x11 X-HORIZON™ Rear Derailleur

SRAM APEX® 1 Rear Derailleur

SRAM Force® 1 Rear Derailleur

SRAM Rival® 1 Rear Derailleur

X01 10-Speed DH X-HORIZON™ Rear Derailleur

X01 7-Speed DH X-HORIZON™ Rear Derailleur

X01 Eagle™ Rear Derailleur

X01 X-HORIZON™ Rear Derailleur

X1 X-HORIZON™ Rear Derailleur

XX1 Eagle™ Rear Derailleur

XX1 X-HORIZON™ Rear Derailleur

Ceramitech Derailleur Sram Pulleys are designed to eliminate a major source of drive train drag from your bicycle. These are an ultra-high performance racing part designed to give you an edge on race days. We recommend changing the ceramic 12T pulleys every 4,000 miles, or about the life span of two chains, for maximum reliability and performance.

Make no compromises. Studies have shown that frictional loses at the derailleur are not merely fractional losses. It's a mystery to us why major manufacturers ignore bottom bracket and derailleur pulley performance and continue to pump out under-performing products that sap wattage from riders who are working like mad to get faster. You have the BBInfinite bottom bracket with Ceramitechs already, and you've seen the gains. It's time for another bump. Get the most out of your ride by riding these Sram derailleur pulleys.