Bottom Bracket Sizing Help
01-02-11 | 01:32 PM
#1
Thread Starter
Senior Member
Joined: Jun 2007
Posts: 353
Likes: 0
From: Tacoma, WA
Bikes: 90s Gios Compact Pro. 80s Battaglin w/ Dura Ace 7400s. 70s Medici Pro Strada
Bottom Bracket Sizing Help
I just got this 70s Medici frame on ebay and started collecting components to mount on it. First up, bottom bracket and crankarms.
165771_486487422660_507947660_5673063_3169657_n.jpg
I found an english thread Campagnolo Daytona BB, thinking it would be a standard size. Lo and behold it's about a mm or two too small in diameter. I've not been able to find much info online about the different BB sizing. Can anyone provide any insight? Greatly appreciated.
Here's the side of the BB:
163766_494302257660_507947660_5816813_6126223_n.jpg
Text: 1.370"*24 T.P.I Left Lock -> 70Nm
165771_486487422660_507947660_5673063_3169657_n.jpg
I found an english thread Campagnolo Daytona BB, thinking it would be a standard size. Lo and behold it's about a mm or two too small in diameter. I've not been able to find much info online about the different BB sizing. Can anyone provide any insight? Greatly appreciated.
Here's the side of the BB:
163766_494302257660_507947660_5816813_6126223_n.jpg
Text: 1.370"*24 T.P.I Left Lock -> 70Nm
Last edited by matt0ne; 01-02-11 at 01:35 PM.
01-02-11 | 05:44 PM
#4
Senior Member
Joined: Nov 2003
Posts: 12,275
Likes: 6
From: SE Minnesota
Bikes: are better than yours.
It's probably Italian. If you're not familiar with Sheldon yet, spend some time with him.
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