niconmara Posted March 17, 2013 Report Share Posted March 17, 2013 Hi, I was wondering if anyone has gone down a gear ratio. I was thinking of changing my current 18/15 ration for a 16/13 or 16/12. I know it will be a bit harder to run the 16/12 ratio. Will it be noticeably harder with 16/12 ratios. And Will the 16/13 be the same as 18/15. regards. Quote Link to comment Share on other sites More sharing options...
sstein Posted March 17, 2013 Report Share Posted March 17, 2013 16/13 will be roughly the same as 18/15. 16/12 will be a bit harder which is better for street riding. Standard ration for stock is usually around 1.2. I have ridden as hard as 1.5 for streetier stuff without issues. Quote Link to comment Share on other sites More sharing options...
bing Posted March 17, 2013 Report Share Posted March 17, 2013 I run 18/16, is fine for me Quote Link to comment Share on other sites More sharing options...
CC12345678910 Posted March 18, 2013 Report Share Posted March 18, 2013 (edited) 18/15 works out as 1.2 16/13 is 1.23. The difference from personal experience is noticeable but not by much. Suitable if 18/15 has become not heavy, or fast, enough anymore Edited March 18, 2013 by CC12345678910 Quote Link to comment Share on other sites More sharing options...
Jake. Posted March 18, 2013 Report Share Posted March 18, 2013 18/15 is good for me but I sometimes want slightly harder gearing, don't think I'd run 16/13 though haha Quote Link to comment Share on other sites More sharing options...
niconmara Posted March 18, 2013 Author Report Share Posted March 18, 2013 18/15 works out as 1.2 16/13 is 1.23. The difference from personal experience is noticeable but not by much. Suitable if 18/15 has become not heavy, or fast, enough anymore Thanks mate just what i wanted to hear(read). do you know how many links shorter the chain becomes. Quote Link to comment Share on other sites More sharing options...
Alex Dark Posted March 19, 2013 Report Share Posted March 19, 2013 I'm considering the change from 16:14 to 16:13... Still not too sure; here's a calculator for you: http://www.machinehead-software.co.uk/bike/chain_length/chainlengthcalc.html Quote Link to comment Share on other sites More sharing options...
Muel Posted March 19, 2013 Report Share Posted March 19, 2013 By my calculations, going from 18:15 to 16:13 will only increase the ratio by roughly 2.5%, which I doubt would be noticeable.If you changed to 18:14 however, that would be a 7.2% increase, which would be noticeable IMO. Not by much though.16:12 would be around 10.08% increase.Personally I'd go for 18:14, as it would only require you to change one sprocket and still gives a pretty big increase.I'm considering the change from 16:14 to 16:13... Still not too sure; here's a calculator for you:Do it, I bought a bike with 16:14 once. Tried to stick with it for a few days but it was awful, soon switched to 16:13. The difference was very noticeable I thought. Quote Link to comment Share on other sites More sharing options...
niconmara Posted March 22, 2013 Author Report Share Posted March 22, 2013 The neil tunnicliffe mister is running 18:16 is that any good, does anyone else run that? Quote Link to comment Share on other sites More sharing options...
bing Posted March 22, 2013 Report Share Posted March 22, 2013 See above Quote Link to comment Share on other sites More sharing options...
niconmara Posted March 22, 2013 Author Report Share Posted March 22, 2013 See above whats you gap distance max n stuff? Quote Link to comment Share on other sites More sharing options...
N.Wood Posted March 22, 2013 Report Share Posted March 22, 2013 I love 18:15, only time I could do with lighter is un uphill bumpy natural run ups. But seems to help wheelspin so even then it can be good to have it slightly harder. Quote Link to comment Share on other sites More sharing options...
bing Posted March 22, 2013 Report Share Posted March 22, 2013 I'm not that good lol. Probably do 5-6 ft max, it just felt right if you know what I mean. Best thing to do is get a load of sprockets and try it. You can always sell them on when you don't need them Quote Link to comment Share on other sites More sharing options...
niconmara Posted March 22, 2013 Author Report Share Posted March 22, 2013 well i prob put a wanted notice for a 16t on forum soon. its just that my 18:15 just dont feel that good. i can go 7/8 foot at gapping just feels like i need more from the gearing. im hoping gym/squats will help. Quote Link to comment Share on other sites More sharing options...
N.Wood Posted March 22, 2013 Report Share Posted March 22, 2013 Pretty sure an easier gear won't help you gap further. Will also completely change your timing for taps etc. Quote Link to comment Share on other sites More sharing options...
niconmara Posted March 22, 2013 Author Report Share Posted March 22, 2013 Pretty sure an easier gear won't help you gap further. Will also completely change your timing for taps etc. so why does tunni nail them Quote Link to comment Share on other sites More sharing options...
bing Posted March 22, 2013 Report Share Posted March 22, 2013 Cos riders like Tunnicliffe/Damon/Craig lee Scott have the technique absolutely dialled in. In Damon's case quite a lot of muscle to go with it. It's like all sports, practice makes perfect. In some cases, people are just naturally gifted at it Quote Link to comment Share on other sites More sharing options...
N.Wood Posted March 23, 2013 Report Share Posted March 23, 2013 so why does tunni nail them Ok, go for it kiddo. Quote Link to comment Share on other sites More sharing options...
ghostrider88 Posted March 23, 2013 Report Share Posted March 23, 2013 The neil tunnicliffe mister is running 18:16 is that any good, does anyone else run that? I used to with 170mm cranks, TRA did too. It makes the bike feel more responsive, which is great for gaps and short run ups. I never liked 18:15 really, the bike felt way too sluggish with it. Quote Link to comment Share on other sites More sharing options...
Blake Posted March 23, 2013 Report Share Posted March 23, 2013 so why does tunni nail them Don't change your spec to match a pro riders bike, as they can usually ride anything like a boss. I built a bike up very similar to Damon's bike, and it f**king sucked. Couldn't sidehop above 35 for shit, which is usually pretty easy on my mod which I have now. Quote Link to comment Share on other sites More sharing options...
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