If in doubt get the 1/8 as it will fit on both 1/8 and 3/32 parts! You could alternativly read the size on your rear cog and chainring. They should say the No. of teeth times the size.
@Knucklehead started
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If in doubt get the 1/8 as it will fit on both 1/8 and 3/32 parts! You could alternativly read the size on your rear cog and chainring. They should say the No. of teeth times the size.