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Timeline for Fixie sprockets

Current License: CC BY-SA 4.0

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Jan 4, 2019 at 21:33 comment added Wsal @mattnz I actually considered this idea, if my calculations are correct, the diameter of a cog only grows approximately 0,4 mm per tooth, thus requiring unrealistically large sprocket to even reach the next common size, which I guess would be a 5-bolt 74mm.
Jan 4, 2019 at 20:33 comment added mattnz Extending the thinking - machinehead-software.co.uk/bike/chain_length/… and sheldonbrown.com/cribsheet-bcd.html might help finding a sprocket to match a larger BCD. For instance a 76mm BCD 34 bolted to a 20 tooth cog. (Tooth count of selected sprocket would have to be divisible by the number of bolts on the chain ring, so 20tooth matched 5 and 4 bolt rings) Failing that, welding steel sprockets could be an option.
Jan 4, 2019 at 19:48 history edited Wsal CC BY-SA 4.0
Forgot to mention that chainring bolts should be used to actually mount these.
Jan 4, 2019 at 19:36 history answered Wsal CC BY-SA 4.0