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In the first vid, they went from 2speed to 3 speed.
Smarter people than me can tell you how large the largest sprocket can be.
In fact @sbbohr, sometimes of this parish has done so here:https://www.thebromptonman.com/drive-chain.html#/
https://www.thebromptonman.com/2-speed-ratio-increase.html#/
https://www.thebromptonman.com/2---3-hub-sprockets.html#/
Arvy.-
Thank you very much! The links were very helpful. :)
So, for anyone else asking themselves the same questions:- yes, apparently this works on 2-speed hubs as well as on 3-speed internal gear hubs that have 2 outer sprockets.
- maximum cog size is 19t on steel frames and 18t on ti frames
- yes, apparently this works on 2-speed hubs as well as on 3-speed internal gear hubs that have 2 outer sprockets.
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Max size of 3 speed conversion sprocket? On my Pre 2017 Raw frame the biggest sprocket I can fit is 17T and that is BLOODY tight. YMMV
c-racer
Mikey5000
Soo, am i mistaken or is this a regular 2-speed rear hub in the 1st video?
Is this 3-speed hack doable on the 6-speed bike, i.e. on the 3speed rear hub with the 2speed cog assembly?
So that one would get 9 gears?
And if done on the normal 2speed hub exactly as in the video: what is the maximum capacity and cog size of the bromptopn rear derailleur?