SRAM/Truvativ X0 X9 39T 120mm BB30 Chainring ModelNumber=31954 Disc Center Lock Position Rear

Disc Center Lock Position Rear Rim inner width range 22-27

The Wolf Tooth Rear Axle uses a captive steel washer under the head to reduce friction on the dropout face

but incorporating all the features of the 40 Series headset while offering the perfect balance of performance and value

and instructions

serial number later than 16T11XXXXXXX

SRAM/Truvativ X0 X9 39T 120mm BB30 Chainring ModelNumber=31954 Disc Center Lock Position RearSRAM Truvativ X0 X9 39T 120mm BB30 Chainring. Original equipment on SRAM and Truvativ cranks they also work well with other drive trains. Supplied in TruVativ packaging TECH SPECS Tooth Count 39 Ring Position Type Outer Drivetrain Speeds 10 Chainring BCD 120 Color Black Defined Color Black Material Aluminum