Enduro ZERO Derailleur Pulleys for Shimano 11-speed ModelNumber=K1539 Grade 3 Silicon Nitride balls

Grade 3 Silicon Nitride balls

Wolf Tooth Performance Headsets are machined out of aircraft grade aluminum and assembled with Black Oxide Cartridge Bearings balancing quality and price

Rings 36-22 Rings 36/22 Defined Color Black Spindle Interface Type SRAM/Truvativ GXP Chainring BCD 64 Chainring BCD 104 Color Black Chainline/Hub Compatibility 135/142 MTB Hubs Drivetrain Speeds 10 Number of Chainrings Double Crank Intended Use Mountain Pedal Spindle 9/16" BB Included No Crank Length (mm) 170

Front loading road brake cable port

}SRAM GX Eagle XG-1275 Cassette - 12 Speed 10-50t Black For XD Driver Body

Enduro ZERO Derailleur Pulleys for Shimano 11-speed ModelNumber=K1539 Grade 3 Silicon Nitride ballsEnduro ZERO Derailleur Pulleys for Shimano 11 speed. Enduro Zero Pulley Assemblies use grade 5 ceramic bearings. Races are won and lost by derailleur pulley drag. Sold in Pairs 9 Grams ABEC 5 precision cartridge bearing CERBEC USA Grade 3 Si3n4 Silicon Nitride balls 52100 high carbon Chromium alloy races Races receive 3 cryogenic treatments and a rust proof Magnetite finish "VV" type 2 lip non contact Silicone labyrinth seals Nylon graphite retainer