2011 GT Avalanche

[Peat]

I have a 2011 GT Avalnche frame and was wondering if anybody knows the seat post size and also the seat post clamp size?

[JustJames]

Likely to be the same as the 2008 unless anybody knows otherwise:

http://www.bikeradar.com/forums/viewtop ... p=17245420

[Mugglechops]

Pull out your seatpost and it should be on there.

The clamp may also have it on the inside.

[Peat]

Pull out your seatpost and it should be on there.

The clamp may also have it on the inside.

Would do that If I could.....building a bike from a brand new 2011 frame...no parts came with frame!

[Peat]

Likely to be the same as the 2008 unless anybody knows otherwise:

http://www.bikeradar.com/forums/viewtop ... p=17245420

Thanks for that but....not the correct size. I ride a 2004 gt and that has the same size as the 08. I know that won't fit the 11 frame.

thanks

pete

[mitzikatzi]

New Plastic Sliding Vernier Caliper Measure Tool Ruler

[Mugglechops]

Pull out your seatpost and it should be on there.

The clamp may also have it on the inside.

Would do that If I could.....building a bike from a brand new 2011 frame...no parts came with frame!

Oops my bad. Have you tried ringing a GT dealer?

[Shifter]

'12 models are 30.9mm

Source:
http://www.gtbicycles.com/aus/2012/bikes/mountain/trail/2012-avalanche-1-0

Presume '11 would be the same as it'd a fairly standard seatpost size for a trail bike these days.

[Shifter]

Had a further sniff around and the description from the GT catalogue is the same for both years, except '11 omits the diameter.