Seat tube diameter 531c

[66 triumph daytona]

Anyone know the seat tube diameter of a 531c?

 

[mdvineng]

this should confuse you http://forum.ctc.org.uk/viewtopic.php?f=1&t=36250

 

[KermitGKona88]

Re:

Every single 531 frame I have ever owned about 6 or 7 has been 27.2

 

[mdvineng]

from Sheldon Brown http://www.sheldonbrown.com/seatpost-sizes.html

 

[mdvineng]

http://www.equusbicycle.com/bike/reynol ... -sizes.jpg

 

[66 triumph daytona]

Seatube diameter chaps not seat post diameter,I want to see what size front mech fits.

 

[NeilM]

Re:

I'd say 28.6, given the seatpost size.

 

[Midlife]

AFAIK for all 531 seat tubes the outside diameter was 1 1/8th inch and this was the same for all the variants

Shaun

OOPS metric hat on 1 1/8th inch = 28.575mm

 

[mdvineng]

28.6mm

 

[66 triumph daytona]

Re:

Thanks.