Can you ID the BB type needed?
07-23-14, 11:23 AM
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Can you ID the BB type needed?
Hello,
I have a FUJI Team Pro 2009 (frame was built up at one time but only ridden twice, it then sat and was parted out...I got the frame). I am getting an Ultegra groupset for it, but just when I think I have the specs nailed, I run into another question about the bottom bracket.
What BB do I need for this bike?
Originally, it came with a "Shimano Exterior Bearing System". Is this a press fit system or an English thread system?
Here are the original specs: Fuji Team Pro Carbon Road Bike 2009. Traditional triathlon and road bicycles for
Thanks!
Dave
I have a FUJI Team Pro 2009 (frame was built up at one time but only ridden twice, it then sat and was parted out...I got the frame). I am getting an Ultegra groupset for it, but just when I think I have the specs nailed, I run into another question about the bottom bracket.
What BB do I need for this bike?
Originally, it came with a "Shimano Exterior Bearing System". Is this a press fit system or an English thread system?
Here are the original specs: Fuji Team Pro Carbon Road Bike 2009. Traditional triathlon and road bicycles for
Thanks!
Dave
07-23-14, 11:37 AM
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07-23-14, 11:39 AM
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Off the cuff, but easily confirmed with a visual inspection, I'd strongly suspect that given the vintage the bike would have a standard 1.37x24 threaded BB.
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07-23-14, 01:53 PM
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07-23-14, 02:48 PM
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I don't know if there are newer BBs that might fool anyone, but given the vintage we'll rule that out. A 1.370" BB will be just about 1-5/8" OD (not precise), and if the cups are threaded they'll have a provision for some kind of keyed spanner, such as grooves around the OD.
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
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07-23-14, 06:15 PM
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I don't know if there are newer BBs that might fool anyone, but given the vintage we'll rule that out. A 1.370" BB will be just about 1-5/8" OD (not precise), and if the cups are threaded they'll have a provision for some kind of keyed spanner, such as grooves around the OD.
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07-23-14, 06:39 PM
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Should doesn't apply here. You have no choice, threaded it is.
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07-24-14, 12:30 AM
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The frame was originally spec'd with a "HT2" crank and bottom bracket. Fairly certain the frame is a standard English BB (68mmx1.37-24), so if you have the "HT2" crank select the appropriate BB.
07-24-14, 01:46 AM
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Shimano exterior is standard English Thread. Just went through the same ?? with my LBS concerning a newer Trek 3700. Hollow Tech II's , GXP etc... type BB's will fit right in. You have a lot to choose from.
07-24-14, 02:32 AM
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Just about any standard ISO BB 80's to present should thread into your frame you just need to get one to match the crank. Yours is likely a current Shimano Hollow Tech type so you have most of the late model stuff to choose from.
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