JonnyWobbles Posted October 22, 2020 Report Share Posted October 22, 2020 Advice please, the Sherpa 198A I'm refurbishing currently has 12T front and 40T rear sprockets that are very worn and to be replaced. I didn't get chance to ride the bike before stripping down, so is this a reasonable ratio for a complete novice rider? ⚙️ Cheers! Quote Link to comment Share on other sites More sharing options...
sherpa325 Posted October 22, 2020 Report Share Posted October 22, 2020 That's reasonably tall gearing, standard is 11/39 and most around here are running 11/40 to 11/42 just to get a little more control in the tighter sections. 1 Quote Link to comment Share on other sites More sharing options...
carl ekblom Posted October 23, 2020 Report Share Posted October 23, 2020 (edited) A good idea would be to try 11/40 first and see how it goes. I currently run 11/42 Edited October 23, 2020 by carl ekblom Quote Link to comment Share on other sites More sharing options...
trialsrfun Posted October 23, 2020 Report Share Posted October 23, 2020 11 - 42 is what I run I find it spot on. Quote Link to comment Share on other sites More sharing options...
motovita Posted October 23, 2020 Report Share Posted October 23, 2020 I currently have 11/43 on my 199A, 42 is probably easier to find and should work fine. Quote Link to comment Share on other sites More sharing options...
JonnyWobbles Posted October 23, 2020 Author Report Share Posted October 23, 2020 Thanks, everyone good advice and much appreciated. I think 11/42 sounds favourite! Quote Link to comment Share on other sites More sharing options...
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