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Mountain Chainring
SRAM/Truvativ X0 X9 42T 120mm GXP Chainring, Use with 28T
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Original equipment on SRAM and Truvativ cranks, they also work well with other drive trains.
Check all technical specifications
+3mm 40mm Lower Race custom for Salsa
.2mm Rotor Shims
1" Threaded Headset
1-1/8" Microspacer, 10-Pack
