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few building questions(5 posts)

few building questionsbm
May 31, 2003 9:53 PM
building up a '99 Caad3, and have a couple questions.

I believe the seat post is a 27.2 mm. Will a 27.0 work?

How about a 25.8 handlebar with a 26.0 mm clamp?

Lastly, i'm a little confused about the BB. Since i have a cannondale, that's english tread right? and so that means 109 mm?

Thanks.
Bottom Bracket should be 68 mm.the bull
Jun 1, 2003 4:28 AM
109 is the length of axle if your going to use a double.

As far as the seatpost and bars .2 mm is very small amount and it should work.I have never done it so dont take just my word on this!If it were me I would get the proper sizes.

Good luck!
Well...Spoke Wrench
Jun 1, 2003 5:30 AM
I wouldn't bet on the seatpost. There's a reason why they are sold in 0.2mm increments. A seatpost that won't hold it's height adjustment is a pain.

Handlebars are different. 25.8mm and 26.0mm are commonly sold as equivalent.

For your bottom bracket, you're mixing apples with oranges. 109mm refers to the spindle length which has nothing to do with being English or Italian. Assuming you're using a splined Shimano double crankset, you almost certainly need a 68 X 109 bottom bracket.
yes, thanks . . .bm
Jun 1, 2003 9:47 AM
yes, i just figured out how the bb specs work. the 109 is for double, and 118 for triple. and the 68 - well i measured my bb on the frame to be 68 mm. but what's with the english vs. italian vs. french. how do i tell?

it's too bad about the seatpost. i found a great deal - syncros, about 190 grams, only $30! you don't think i could use a shim for that?
It's a Cannondale CAAD3. .Alexx
Jun 2, 2003 1:42 PM
so, it's pretty likely that it's an English thread (unless somebody re-tapped it to italian-which is rare). French and Swiss threading is 30 years obsolete (I'm sure SOMEBODY knows of a company still using them, but that's a fluke), so don't worry about them.