Seat Tube Sizes

Questions about purchasing bicycles and parts

Seat Tube Sizes

Postby MountGower » Fri Jun 22, 2007 5:43 pm

Last edited by MountGower on Tue Feb 15, 2011 11:29 am, edited 1 time in total.

by BNA » Fri Jun 22, 2007 5:53 pm


Postby sogood » Fri Jun 22, 2007 5:53 pm

Campag has 32mm and 35mm versions. So I guess that's pretty standard.
Bianchi, Ridley, Montague, GT, Garmin and All things Apple :)
RK wrote:And that is Wikipedia - I can write my own definition.
User avatar
Posts: 16796
Joined: Thu Aug 31, 2006 7:31 am
Location: Sydney AU

Postby heavymetal » Fri Jun 22, 2007 6:04 pm

After trying to locate a suicide plate, their clamp sizes come in 29.5, 32 and 35mm sizes, so I presume these are the common sizes for the down tube.
There is only one BicycleWA.
Super Mod
Super Mod
Posts: 1381
Joined: Tue Sep 27, 2005 5:32 pm

Postby MountGower » Fri Jun 22, 2007 6:39 pm

Thanks for that fellas.

Postby 531db » Sat Jun 23, 2007 10:27 pm

Standard external seat tube diameters are 28.6mm (1 1/8"), 31.8mm (1 1/4") and 34.9mm (1 3/8").
Posts: 969
Joined: Mon Nov 20, 2006 6:25 pm
Location: Riding a real steel bike - somewhere!

Return to Buying a bike / parts

Who is online

Users browsing this forum: Google [Bot]

Support BNA
Click for online shops
Torpedo 7 Torpedo7 AU
Ground Effect Ground Effect NZ
Chain Reaction Cycles CRC UK
Wiggle Wiggle UK
Cycling Express Cycling Express
Ebay Ebay AU
ProBikeKit ProBikeKit UK
Evans Cycles Evans Cycles UK
JensonUSA Jenson USA
JensonUSA Competitive Cyclist