SRAM’s 1x XX1/X001 rear derailleurs work better with our 11-tooth pulleys. They work with less mechanical friction, adding to the power transmitted to the rear wheel. They also possess greater durability, going longer between replacement intervals.
The upper and lower pulleys both have a narrow-wide tooth design.
There are choices, so you can choose for your needs. Machined aluminum pulleys with our CeramicSpeed balls in hardened-steel races is the base. The bearings are our Standard Bearings. These test better than anything else on the market. The second option is machined titanium pulleys with our Stock Bearings. The third is machined titanium pulleys with our CeramicSpeed balls installed in Coated, hardened-steel races.
In the box
2 x 11-tooth pulley wheels
CeramicSpeed bearing oil in 10ml dropper bottle
CeramicSpeed grease in 5ml syringe
Machined aluminum pulleys are the standard by which we measure. Machined titanium lasts three times longer.
The Coated Bearings have races 75% harder than our Standard Bearings. They have a life 60% longer than our Standard. Frictional drag decreases by over 50% compared to our Standard.
There are different upper and lower pulleys, are marked, and have directional arrows.
These pulleys need to be installed with stock SRAM pulley spacers between the cages. Save those before installing CeramicSpeed.
The kits come with CeramicSpeed oil in a 10ml dropper bottle and grease in 5ml syringe. The bearings come oiled. The additional oil is for maintenance. The grease for harsh environments.