All-City 13T x 1/8" Track Cog Black MPFN-230-4078A }DT Swiss RWS MTB Front

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Pro Head Reinforcement System (PHR) has a larger and more spherical contact area and is designed to balance loads transferred to the rim

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All-City 13T x 1/8" Track Cog Black MPFN-230-4078A }DT Swiss RWS MTB FrontAll City 13T x 1 8" Track Cog Black. All city's great value standard track cog available in the most popular sizes. 16t and lower are solid 17t and higher have cutouts Chromoly steel; CNC precision machined 1 8" width cogs; Threads are 1. 37" x 24 tpi TECH SPECS Tooth Count 13