Steel rings with polymer spacersZinc finish460 gSHIMANO Equivalent MF-HG37 / MF-TZ37
HG Shimano, index compatible
Optical gear display; up to seven downshifts with lever strokeShimano-compatible
SunRace R30 7 speed 13-25t freewheel
Classic style friction shiftersGood replacements for classic restorations107-113g

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Panel Tool
Float header
Float topbar
Default Boxed Large