BB compatibility question
08-30-10, 05:05 PM
#1
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BB compatibility question
I was just looking at the felt AR1 frameset, with an eye towards a Red build.
The AR1 complete lists a DA hollowtechII bb
The AR1 frame set actually doesn't state what BB are compatible.
So would this work with a red bb30? How would I know?
The AR1 complete lists a DA hollowtechII bb
The AR1 frame set actually doesn't state what BB are compatible.
So would this work with a red bb30? How would I know?
08-30-10, 05:46 PM
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You would know because the Dura Ace Hollowtech II isn't a BB30 bottom bracket. It's a threaded bottom bracket (or pressed, in certain cases of the BB86 or BB90 stuff, but still the same bracket).
It's probably 68mm English threaded, but their website sucks, so I can't tell you.
It's probably 68mm English threaded, but their website sucks, so I can't tell you.
08-30-10, 05:54 PM
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I have seen AR1 built up with Red elsewhere in the internetz. How would it be done?
08-30-10, 06:01 PM
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https://www.sram.com/sram/road/produc...m-red-crankset
08-30-10, 06:06 PM
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To beat this to death - BB30 is just a specific BB standard. In order to run a BB30 you have to have a frame that was built to use one. You'd know. This one is not. HollowtechII is Shimano's outboard bearing cup standard designed to be used on standard threaded BB's. <> BB30. Red cranks - as umd pointed out - are available in both BB30 and Regular threaded BB standard. SRAM's name for their regular threadded BB is Truvativ's "GXP"
If you don't have a BB30 frame - then you can't run BB30.
If you don't have a BB30 frame - then you can't run BB30.
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08-30-10, 06:12 PM
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To beat this to death - BB30 is just a specific BB standard. In order to run a BB30 you have to have a frame that was built to use one. You'd know. This one is not. HollowtechII is Shimano's outboard bearing cup standard designed to be used on standard threaded BB's. <> BB30. Red cranks - as umd pointed out - are available in both BB30 and Regular threaded BB standard. SRAM's name for their regular threadded BB is Truvativ's "GXP"
If you don't have a BB30 frame - then you can't run BB30.
If you don't have a BB30 frame - then you can't run BB30.
08-30-10, 06:15 PM
#11
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Here is more than you need to know about installing it (scroll down to SRAM):
https://www.parktool.com/repair/readhowto.asp?id=95
But basically, the 2 bearing cups just screw in like large bolts using the BBT-19 socket, and then the 2 sides of the crank go on and the left side crank bolt clamps the whole thing together.
https://www.parktool.com/repair/readhowto.asp?id=95
But basically, the 2 bearing cups just screw in like large bolts using the BBT-19 socket, and then the 2 sides of the crank go on and the left side crank bolt clamps the whole thing together.
08-30-10, 06:17 PM
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Alright, thanks for clearing that up. I have no preference between BB30 and GXP, i just wanted to know if Red was doable. But I understand it now.
