MadNick1.2 Posted June 16, 2009 Report Share Posted June 16, 2009 Hi All,I am pretty new to trials and have been contemplating the huge choice of chainrings and sprockets available to us trials riders.At the moment i am using a 20 tooth up front and 17 tooth on the rear.Does this combo sound ok?What are you guys using at the moment?What is the best or most common gear ratio?Any info would be great.Thanks in advanceNick Quote Link to comment Share on other sites More sharing options...
Jack Morton Posted June 16, 2009 Report Share Posted June 16, 2009 I'm running 18t to 12t. Quote Link to comment Share on other sites More sharing options...
George.E Posted June 16, 2009 Report Share Posted June 16, 2009 What bike do you ride mod or stock ?If mod go 18t-12t. Quote Link to comment Share on other sites More sharing options...
Jack Chinnery Posted June 16, 2009 Report Share Posted June 16, 2009 Hey mate, on mod the normal ratio is 18:12 and stock 18:15 etc. Quote Link to comment Share on other sites More sharing options...
MadNick1.2 Posted June 16, 2009 Author Report Share Posted June 16, 2009 I ride a stock at the moment. Gear ratio of 20t to 17t. Quote Link to comment Share on other sites More sharing options...
Maladie Posted June 17, 2009 Report Share Posted June 17, 2009 20 - 17t doesn't sound too bad on a stock.18 - 14t would probably be a tad better though, it's only a little more heavy. (Same as 20 - 16) Quote Link to comment Share on other sites More sharing options...
Nick Manning Posted June 17, 2009 Report Share Posted June 17, 2009 If you want to change your ratio divide your front by your rear, so 20 divided by 17 = 1.17 now if you want to make your gearing easier/lighter then you need to reduce your ratio so it's closer to 1 (direct drive). If you want it harder/heavier then you need to increase the number away from 1 My ratio on my stock is 18-16 which is 1.125 so my gearing is alot lighter than yours. If you decide to change your ratio, then just play around on a calculator to find the gearing you want. Quote Link to comment Share on other sites More sharing options...
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