BB question
02-06-10 | 11:59 AM
#1
Thread Starter
Senior Member
Joined: Jan 2009
Posts: 81
Likes: 0
From: Lawrence, KS
Bikes: 2010 Felt F1
BB question
Ok I posted about this on the rodie page but seeing as the mechanics lurk around here....
I am getting ready to upgrade my frame from my 2009 Trek 2.3 to a 2007 Felt F1 i know ill need to upgrade my front der to a braze on but i just wanna make sure the rest of my drivetrain will swap out ok....
All i have been able to find is that the BB on the F1 is 70mm and i cant figure out the 2.3's BB size.
Also if the BB doesnt fit can can i swap it out and get one that does without changing my crank?
Any help would be greatly appreciated... thanks
I am getting ready to upgrade my frame from my 2009 Trek 2.3 to a 2007 Felt F1 i know ill need to upgrade my front der to a braze on but i just wanna make sure the rest of my drivetrain will swap out ok....
All i have been able to find is that the BB on the F1 is 70mm and i cant figure out the 2.3's BB size.
Also if the BB doesnt fit can can i swap it out and get one that does without changing my crank?
Any help would be greatly appreciated... thanks
02-06-10 | 01:00 PM
#2
Senior Member
Joined: Apr 2009
Posts: 39,897
Likes: 3,865
From: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
The factors which determine BB interchange for frames are shell width and thread, and for the newer designs shell diameter. Spindle length, and/or spacers on some BB's determine chainline.
If this BB is not compatible with the new frame, you shouldn't have any problem getting an appropriate BB compatible with your crankset.
If this BB is not compatible with the new frame, you shouldn't have any problem getting an appropriate BB compatible with your crankset.
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FB
Chain-L site
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
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
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
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
02-06-10 | 01:43 PM
#3
cab horn
Joined: Jun 2004
Posts: 28,353
Likes: 30
From: Toronto
Bikes: 1987 Bianchi Campione
Ok I posted about this on the rodie page but seeing as the mechanics lurk around here....
I am getting ready to upgrade my frame from my 2009 Trek 2.3 to a 2007 Felt F1 i know ill need to upgrade my front der to a braze on but i just wanna make sure the rest of my drivetrain will swap out ok....
All i have been able to find is that the BB on the F1 is 70mm and i cant figure out the 2.3's BB size.
Also if the BB doesnt fit can can i swap it out and get one that does without changing my crank?
Any help would be greatly appreciated... thanks
I am getting ready to upgrade my frame from my 2009 Trek 2.3 to a 2007 Felt F1 i know ill need to upgrade my front der to a braze on but i just wanna make sure the rest of my drivetrain will swap out ok....
All i have been able to find is that the BB on the F1 is 70mm and i cant figure out the 2.3's BB size.
Also if the BB doesnt fit can can i swap it out and get one that does without changing my crank?
Any help would be greatly appreciated... thanks
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