Elmo =) Posted September 14, 2008 Report Share Posted September 14, 2008 does having diferent length cranks affect riding, such as does 170 help you gap because of better leverage and so on. what does it affect Quote Link to comment Share on other sites More sharing options...
Mikee Posted September 14, 2008 Report Share Posted September 14, 2008 i think it is to do with leverage but i don't know for sure. on my brothers bike he had 160 cranks and when he put 170 cranks on it made alot of difference. me and him both thought that we could get more power through as we could gap noticably further on it. Quote Link to comment Share on other sites More sharing options...
hazr27 Posted September 14, 2008 Report Share Posted September 14, 2008 i found out the hard way, i got a set of 175mm and they rub against my hs33's because they are so long.so mabey before you order a new set check the disctence from the bolt that attaches them to the bb and where your brakes sit. if you have disc's there shouldnt be a problem.other than that im not sure what the difference is! hope this helps. Quote Link to comment Share on other sites More sharing options...
ogre Posted September 14, 2008 Report Share Posted September 14, 2008 you'll get more acceleration through shorter cranks, and more leverage and power through longer ones, i never really noticed, just with longuns for the sake of re-sale. Quote Link to comment Share on other sites More sharing options...
JonMack Posted September 14, 2008 Report Share Posted September 14, 2008 Even going from 170s to 175s I noticed a difference in my gapping ability. I run 175mm Try-Alls on my Dob 20" and I love them. Quote Link to comment Share on other sites More sharing options...
Elmo =) Posted September 14, 2008 Author Report Share Posted September 14, 2008 cool thanks for the answers man so in sence shorter cranks are better for competitions and longer cranks are more tgs Quote Link to comment Share on other sites More sharing options...
JonMack Posted September 14, 2008 Report Share Posted September 14, 2008 I run 175mm Try-Alls on my Dob 20" Quote Link to comment Share on other sites More sharing options...
Bearded Midget Posted September 14, 2008 Report Share Posted September 14, 2008 longer makes your gearing feel lighter aswell. mine are 170 feel nice! Quote Link to comment Share on other sites More sharing options...
JT! Posted September 15, 2008 Report Share Posted September 15, 2008 So what's the advantage of having shorter cranks? Quote Link to comment Share on other sites More sharing options...
forteh Posted September 15, 2008 Report Share Posted September 15, 2008 So what's the advantage of having shorter cranks?Shorter cranks can be spun faster without buggering up your knees so much, also gives a touch more clearance I use 165 middleburns and find that 18/15 is a touch to high geared where as 18/16 is about right (possibly a bit low for taps mind). Its swings and roundabouts longer cranks need a higher gear ratio to feel the same as short ones - if you find something that works for you then use it Quote Link to comment Share on other sites More sharing options...
Greetings Posted September 16, 2008 Report Share Posted September 16, 2008 Used to run 158mm cranks on a 18:17 ratio. Thanks to their length, you could spin them really quickly and rolling moves weren't a problem. Same applied to gaps and other stuff, they made the drivetrain really responsive. I'm now running 170 on 18:16 gearing, it feels noticeably heavier despite the greater leverage.The only real benefits of running shorter cranks is that you can spin them more quickly and retain greater stability while doing so. But it's a very minor advantage, something you'll notice when you switch over. It wears off almost instantly though. Quote Link to comment Share on other sites More sharing options...
JonMack Posted September 16, 2008 Report Share Posted September 16, 2008 Which do you prefer? Quote Link to comment Share on other sites More sharing options...
Greetings Posted September 16, 2008 Report Share Posted September 16, 2008 Don't know yet, need to give it a good ride first The 170/18:16 must be the better all round setup, after all it's popular for a reason. Quote Link to comment Share on other sites More sharing options...
Mark W Posted September 16, 2008 Report Share Posted September 16, 2008 i think it is to do with leverage but i don't know for sure. on my brothers bike he had 160 cranks and when he put 170 cranks on it made alot of difference. me and him both thought that we could get more power through as we could gap noticably further on it.The reason for that is that you could. Think about it - push a door from near the hinges and it's hard as f**k. Push it from nearer the end of the door (Away from the hinges) and it's easy. It's the same with cranks. I ran 158s on my mod, and 18:12 felt 'right', I guess. I changed to 175s though because I wanted the power of 18:12, but I wanted it to feel a bit lighter. You're still getting the actual gear ratio, so it'll still be the same actual power, but because it's 'easier' to pedal with the extra leverage it feels nicer, to me. I really don't think the "Longer cranks arms mean less clearance" thing means much for trials, just because I can't really think of any situation where you'd have your cranks pointing down towards whatever obstacle you're trying to ride over? Like if you were riding over a rock, or off the lip off a drop, you're not going to have your cranks vertical or pointing straight at the surface of whatever you're riding on (Meaning they'd be at the point where they gave least clearance), so it doesn't really matter at all.after all it's popular for a reason.Fluorescent parts were insanely popular. That didn't make them legitimate or indeed right. Quote Link to comment Share on other sites More sharing options...
Jason222 Posted September 16, 2008 Report Share Posted September 16, 2008 I'm running 18:16 with 170's, and I'm going to be switching to 18:15 with 175's for next season. Tried it on James bike and it just felt right. Quote Link to comment Share on other sites More sharing options...
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