Chinese Carbon MTB > 29er
Help a noob- bottom bracket and axle/dropout questions
Patrick C.:
Thanks to those that have shared their build pics and parts lists- especially carbon Dude and Sitar Ned. They have been a big help in figuring out just what I'm getting into.
I'm planning to get an XT M785 crankset, and wanted to be sure I specify the correct BB shell. Is the BSA the correct one to specify?
For the wheels, I'm planning to go with regular QR skewers, so I assume I need to ask for the 135 mm rear.
I'm leaning toward the IP-057- am I correct that it can be setup for the regular 135 wide QR wheels?
Carbon_Dude:
Yes, 73mm BSA (English) bottom bracket is what you would specify as well as standard QR135 dropouts for your IP-057.
Here is some info on bottom brackets:
http://www.bikerumor.com/2010/02/17/bottom-bracket-tech-breakdown/
Here is some info on the rear axle spacing:
http://www.mbaction.com/Main/News/MBA-Tech-Making-Sense-Of-RearWheel-Spacing-6083.aspx
Sitar_Ned:
--- Quote from: Carbon_Dude on May 14, 2014, 06:37:21 PM --- as well as standard QR135 dropouts for your IP-057.
--- End quote ---
Wouldn't that technically make it an 056? I thought that was the only difference between the two. The 057 has 142x12mm rear axle and the 056 doesn't?
Carbon_Dude:
I don't think XMIplay sells the IP-056 anymore, I think you just order the IP-057 and specify either QR or 142 dropouts.
Sitar_Ned:
Oh.. Gotcha. Sorry to add to the confusion.
Hey Patrick, have you already purchased the wheels? Here's the wheels I got: http://www.bikewagon.com/sun-ringle-charger-expert-29er-mountain-bike-wheelset-15mm-black-red (looks like they are almost sold out though)
Get the rear 142x12mm adapter for $20 and your in a quality wheelset with thru-axle front and rear for $300. Just thought I'd throw out some options for you. Either way, i'm sure you'll be happy.
Heck, mine may even be up for sale here pretty soon if I can't shake this urge to get some carbon hoops.
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