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Old 12-07-10, 05:13 PM   #1
RobbieTunes 
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Bontrager crankset BB cups....

I see a lot of Bontrager cranksets for sale on eBay and elsewhere.
Almost none have the BB cups to go on the BB shell.

I bought one crankset, and it came with them.
I bought another, Race Light triple, and it did not.

Are these cups available, or am I SOL? (Shoot, Outa Luck)

Thanks.
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Old 12-07-10, 05:16 PM   #2
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I think bontrager uses GXP, which means you need a truvativ/SRAM BB.
I'm not 100% sure.
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Old 12-07-10, 06:30 PM   #3
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that is what you get for buying trek trash
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Old 12-07-10, 06:40 PM   #4
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Originally Posted by AEO View Post
I think bontrager uses GXP, which means you need a truvativ/SRAM BB.
I'm not 100% sure.
correct.

http://enduroforkseals.com/id225.htmlgxp
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Old 12-07-10, 08:39 PM   #5
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that is what you get for buying trek trash
Treks may suck hard, but that is a regular GXP bottom bracket, as has been said.
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Old 12-07-10, 09:12 PM   #6
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Thanks for the advice.

Bontager may be trash to some, but when you're trying to build a friend's daughter a bike for Christmas, you do what you can.

I didn't realize I was so close to the Road Forum.
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Old 12-08-10, 07:50 PM   #7
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Picked up some GXP, and thanks, folks.
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1985 Raleigh Competition Racing USA Series-Coleman made me do it.....
1987 Bridgestone Radac - Aluminum (sadly, the frame is toast, RD hanger snapped off)
1988 Centurion Dave Scott Ironman Master - Steel
1989 Centurion Carbon-R - Carbon Fiber

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Old 12-08-10, 07:54 PM   #8
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Picked up some GXP, and thanks, folks.
just remember to use both spacers when installing on a 68mm BB shell.
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Old 12-08-10, 09:05 PM   #9
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just remember to use both spacers when installing on a 68mm BB shell.
And you'd be wrong.
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Old 12-08-10, 09:36 PM   #10
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And you'd be wrong.
no, I'm quite correct.

68mm BB shell required both BB spacers on the GXP to be used with a truvativ triple. Otherwise the taller stepped portion of the axle won't rest on the BB properly, would leave a bad chainline and a rather large gap between the crank and BB on the drive side.
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