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Got a set of M442 cranks like these - http://www.ukbikestore.co.uk/product/56/shimano_fcm442/shimano-m442-square-taper-chainset-443222.html
I cant find the recommended axle width to get the 50mm chainline that On-One recommend.
Would a 118mm axle give me a decent chainline and avoid any potential chainsuck issues (ie chainrings been too close to the chain stay)?
Ta
And i thought every other STW user had an On-One.... 😉
Anyone?
According to this you need 113mm
[url= http://www.sheldonbrown.com/bbsize.html ]Sheldon Brown's BB Size database[/url]
Assuming the 442 is the same as the 440
Lots of on ones out here but probably not many people with that crankset, I had a quick google but couldn't find the recommended BB for those cranks.
You just want a 5mm longer BB than whatever Shimano recommend for a (normal, older standard) 47.5mm chainline, but I guess you knew that.
Cheers Nick, useful link.
Would there be any harm in running a 118mm axle, would it bring the chainline out too much? Probably been over cautious, but as there are a few reports of chainsuck with the newer On-One frames, im trying work out the best way to prevent it.
[url= http://techdocs.shimano.com/media/techdocs/content/cycle/SI/SI-0086A-001/SI-0086A-001-ENG_v1_m56577569830657937.pdf ]shimano tech doc[/url]
Thanks Restlessnative.
So reading that a UN26 113mm will give a 50mm chainline. Based on that, any BB with UN, ie a UN54 should also be the same dimension?
Thats how I read it yeah*
Even with a 50mm chainline I found the outer chainring on my 853 Inbred very very close to the stays, so I indented it to give more clearance (like the older inbreds were)**
Since then however I have gone 22/36 with a short cage mech , don't think I'd have gotten that in without the indenting actually
*usual disclaimers apply 🙂
**even more disclaimers apply! but Brant said it was fine
Cheers