dirt jumper jake Posted February 28, 2008 Report Share Posted February 28, 2008 Hi guys, im thinking of buy new cranks, screw on sprocket and freewheel, but what is the best gear ratio's ? dont have a go at me for not using search because im at school and it wont let me use it.jake. Quote Link to comment Share on other sites More sharing options...
NileBrown™ Posted February 28, 2008 Report Share Posted February 28, 2008 For mod, best results are with 18:12 but some use 18:13. Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted February 28, 2008 Report Share Posted February 28, 2008 http://www.sheldonbrown.com/gears/Have a look at that^for example...a typical stock gearing would be 26" wheel, 170mm cranks, 18t front cog, 16t rear that gives you 29.7 GI ( gearinches)Normal mod gearing is usually 18:12 or 18:13 although one of my friends who's a begginer runs 20:18 which is a joke to be honest Quote Link to comment Share on other sites More sharing options...
nicks Posted March 24, 2008 Report Share Posted March 24, 2008 For mod, best results are with 18:12 but some use 18:13.ye nile is right Quote Link to comment Share on other sites More sharing options...
Ladd Posted March 24, 2008 Report Share Posted March 24, 2008 18:12, If you have just started try 18:13 Quote Link to comment Share on other sites More sharing options...
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