40/26 chainrings on...
 

[Closed] 40/26 chainrings on 3x9 crankarms

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I'd like to convert a tripple chainset to use that with double rings. I'd like to use 40t 104bcd in the middle position, and 26t 64bcd in the inner position. I have a Whippet frame with press-fit bottom bracket. What about clearance issues?? Would the 40t chainring hit the chainstay? And what about 26t?

Many thanks!


 
Posted : 04/03/2012 11:45 am
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Could You, please help? What's Your opinion?


 
Posted : 04/03/2012 8:27 pm
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We can't see your frame.

See how much clearance you have to play with on the existing set up, work out how much you need, is there enough?


 
Posted : 04/03/2012 8:30 pm
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Ok, I know... ๐Ÿ™‚ But I'm curious about Your experience!


 
Posted : 04/03/2012 8:37 pm
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I've been running 24/38 on an oldish 6" all mountain bike and find it works really well. More than enough range of gears with an 11-34 on the back. Given the bike is probably a lot heavier than your whippet and I'm likely less fit you should be fine with that combination. Sorry but can't help on the clearance issues!


 
Posted : 04/03/2012 9:00 pm
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Yeah, the gear ratio will be fine, I'm just affraid of clearance...


 
Posted : 04/03/2012 9:22 pm
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I've run 28/40 on several frames with no clearance issues. Whippets aren't famed for their chainstay clearance though. Can't you work it out based on your current clearance?


 
Posted : 04/03/2012 11:17 pm
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No, I can't because I don't have the crank at the moment...


 
Posted : 05/03/2012 12:55 am
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Do you have a crank?


 
Posted : 05/03/2012 8:15 am
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Have a look here for info:

http://singletrackworld.com/forum/topic/on-one-whippet-concerns


 
Posted : 05/03/2012 1:10 pm