westyb3 Posted July 13, 2009 Report Share Posted July 13, 2009 Hi Guys I just want to find out what gear ratio's people are using on 20" bikes.At the moment I'm running 24-16 so 3-2 if I'm right. I'm finding it a little easy would a harder gear be better?Cheers Ben. Quote Link to comment Share on other sites More sharing options...
Andy Vox Posted July 13, 2009 Report Share Posted July 13, 2009 Hi Guys I just want to find out what gear ratio's people are using on 20" bikes.At the moment I'm running 24-16 so 3-2 if I'm right. I'm finding it a little easy would a harder gear be better?Cheers Ben.The gearing your using is too hard if anything. The standard is 22:18, havent got a calculator on hand to work out the ratio. Best for mod to increase clearance an give good ratio is 16:14Hope this helps Quote Link to comment Share on other sites More sharing options...
westyb3 Posted July 13, 2009 Author Report Share Posted July 13, 2009 (edited) The gearing your using is too hard if anything. The standard is 22:18, havent got a calculator on hand to work out the ratio. Best for mod to increase clearance an give good ratio is 16:14Hope this helpsI've just checked and it"s actually 24:18 a friend gave me my back wheel and i assumed it was 16 when actually it's 18.Cheers. Edited July 13, 2009 by westyb3 Quote Link to comment Share on other sites More sharing options...
Triumph Posted July 13, 2009 Report Share Posted July 13, 2009 The best gears ratio I used for 20" was 20:16 i think and that was allright and no-one said otherwise aswell.Triumph Quote Link to comment Share on other sites More sharing options...
westyb3 Posted July 13, 2009 Author Report Share Posted July 13, 2009 The best gears ratio I used for 20" was 20:16 i think and that was allright and no-one said otherwise aswell.TriumphCool thanks. Quote Link to comment Share on other sites More sharing options...
Triumph Posted July 13, 2009 Report Share Posted July 13, 2009 Cool thanks.Your welcome mate.Triumph Quote Link to comment Share on other sites More sharing options...
pogo Posted July 13, 2009 Report Share Posted July 13, 2009 I'm loving the manners , the most popular on mods seem to be front free wheel and a fixed sprocket on the rear, 18 something, i dont know much about mods sorry. Quote Link to comment Share on other sites More sharing options...
Little Yoshi Posted July 13, 2009 Report Share Posted July 13, 2009 The most commen i have seen is 18-12. Quote Link to comment Share on other sites More sharing options...
Mark W Posted July 13, 2009 Report Share Posted July 13, 2009 What he said - 18:12 is "the" ratio, pretty much. It's what the vast majority of people run. To work out gear ratios, you divide the number of teeth on the front sprocket by the number of teeth on the back. So 18/12 = 1.5, whereas your current 24:18 is 1.33 or something like that. So yeah, essentially, your gear ratio is a little lighter.Generally though, the point of 18:12 is to reduce weight and give more clearance. Quote Link to comment Share on other sites More sharing options...
Guest itstroy08 Posted July 14, 2009 Report Share Posted July 14, 2009 Well i ride a mod, and run 18-14, feels nice, and is better tan 15 because you can get more speed off it, with-out wearing yourself out.Im soon to be trying backwars gearing 14-18, and see how this feels, no one has tried it , so will be a test . Quote Link to comment Share on other sites More sharing options...
Mark W Posted July 14, 2009 Report Share Posted July 14, 2009 14:18 would give you half the power of 18:12, so basically, for the average rider doing a gap you might need to do a 1/4 pedalstroke - you'd need to do 1/2. I really wouldn't bother. I'm surprised you're ever running 18:14, 'cos when I ran 18:13 it felt way too spinny. Quote Link to comment Share on other sites More sharing options...
Guest itstroy08 Posted July 14, 2009 Report Share Posted July 14, 2009 Yes, personally i dont think its that light,18-12 is amazingly loose, and i can beat someone with 18-14 gearing quite easilyOr i ould be confused and misconted, but i remember ordering a Echo tr 14 thooth sprocket, maby im wrong, so ill go check. Quote Link to comment Share on other sites More sharing options...
westyb3 Posted July 14, 2009 Author Report Share Posted July 14, 2009 What he said - 18:12 is "the" ratio, pretty much. It's what the vast majority of people run. To work out gear ratios, you divide the number of teeth on the front sprocket by the number of teeth on the back. So 18/12 = 1.5, whereas your current 24:18 is 1.33 or something like that. So yeah, essentially, your gear ratio is a little lighter.Generally though, the point of 18:12 is to reduce weight and give more clearance.Thats great. Thanks, so if i put a 16 on the back that will give me the same as 18/12 = 1.5.Cheers Ben Quote Link to comment Share on other sites More sharing options...
alex-trials-boy Posted July 14, 2009 Report Share Posted July 14, 2009 Thats great. Thanks, so if i put a 16 on the back that will give me the same as 18/12 = 1.5.Cheers BenTHe most uptodate ratios is 18-12 mate. Quote Link to comment Share on other sites More sharing options...
nyoli Posted July 14, 2009 Report Share Posted July 14, 2009 i'm sure that most of the 20 trials riders ride 18.12 Quote Link to comment Share on other sites More sharing options...
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