Sutty22 Posted July 2, 2007 Report Share Posted July 2, 2007 Anyone know what size bottom bracket I'd need to run my square taper middleburn/heatsink cranks on a Koxx Caisso? Cheers for any help. Quote Link to comment Share on other sites More sharing options...
Waynio Posted July 2, 2007 Report Share Posted July 2, 2007 127 UN54 best option buddy. Frame should be leaving me today and with you wednesday/thursday.Wayne. Quote Link to comment Share on other sites More sharing options...
Egg Fried Rice Posted July 2, 2007 Report Share Posted July 2, 2007 127 UN54 best option buddy. Frame should be leaving me today and with you wednesday/thursday.Wayne.What are the differences between UN52, UN53 and UN54? or am i just being dumb, feel like a noob.JK Quote Link to comment Share on other sites More sharing options...
weebryan Posted July 2, 2007 Report Share Posted July 2, 2007 yea thats what i used for a good line for single speed Quote Link to comment Share on other sites More sharing options...
Sutty22 Posted July 2, 2007 Author Report Share Posted July 2, 2007 127 UN54 best option buddy.Is that a 68 or 73 mm shell?Also, is the UN54 better than the LX Bottom Bracket (UN52 I think) as thats what I had lined up. Quote Link to comment Share on other sites More sharing options...
Tomm Posted July 2, 2007 Report Share Posted July 2, 2007 I don't think you can buy a UN52 any more, they're more than a few years old. Basically the UN52 got replaced by the UN53 maybe 4 years ago, and the UN54 is the new one which has come out recently. It actually replaces both the UN53 and the UN73, presumably because Shimano aren't that interested in square taper any more. It's lighter and stronger than the UN52/3 since it has a hollow axle, but heavier than the UN73.They're all much of a muchness really though, just get whichever's cheapest. Quote Link to comment Share on other sites More sharing options...
Muel Posted July 3, 2007 Report Share Posted July 3, 2007 They're all much of a muchness really though, just get whichever's cheapest.Yeh I agree, they last for so long and are so strong for the money you pay they really are the only option bar going ISIS. Quote Link to comment Share on other sites More sharing options...
Waynio Posted July 3, 2007 Report Share Posted July 3, 2007 un52,53,54 are just progressions of the years of the LX square taper b/b, its just a number really. but it relates to the b/b year etc.68mm shell 127mm axle.Wayne. Quote Link to comment Share on other sites More sharing options...
Sutty22 Posted July 3, 2007 Author Report Share Posted July 3, 2007 un52,53,54 are just progressions of the years of the LX square taper b/b, its just a number really. but it relates to the b/b year etc.68mm shell 127mm axle.Wayne.Cool mate, Cheers. Got all the bits ready to stick on the frame now. Changing to singlespeed at the same time. Should have it all ready in time for Fort Bill this weekend. Not competing but gonna go check out the standard of riding and how the comps are set out nowadays. Quote Link to comment Share on other sites More sharing options...
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