SRAM/Truvativ X0 X9 39T 120mm BB30 Chainring CheckoutSpec= SLX BR-M7100 Bearing Type Cartridge Crown Race

Bearing Type Cartridge Crown Race 30 Color Black Lower Stack Height 12 S

If you are more concerned with weight than durability

Protective padding on the outer thighs and on the coccyx

Top class modulation and a consistent bite point will inspire confidence for many miles

SRAM/Truvativ X0 X9 39T 120mm BB30 Chainring CheckoutSpec= SLX BR-M7100 Bearing Type Cartridge Crown RaceSRAM 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