Bike Forums - View Single Post - 5 speed to 7 speed on friction shifters
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Old 10-09-11, 08:23 PM
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fietsbob 
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Due to the slightly narrower spacing, a 7-speed freewheel doesn't take up much more width than a 5-speed,
.
But it does take up some..
1 more cog of extra width,, 6mm, It doesn't take up much more
than a standard 6 speed .
since you would need to spread the rear spacing 3mm, per side
it will be a struggle to do puncture repairs.
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