[frame sizing] GT Zaskar 2005 - M or L ?
 

Hello!

I'm around 182 cm (~6 feet) tall. At the moment I ride 18" hardtail frame
which I find slightly too short (the top tube is 55 cm (21.7 inch) long, I
don't know the exact horizontal TT measurement, but its makeshift
measurement showed 58 cm (22,83 inch)).

My inseam is 86 cm (33,86 inch). I need a frame for cross coutry races and
marathons. What GT zaskar size would you recommend: M or L? Or mayby I
should look for some 19" frame? Please help.

All the best,

Lechu

GT Zaskar 2005 - M or L ?
 

wrote:

At the moment I ride 18" hardtail frame
which I find slightly too short (the top tube is 55 cm (21.7 inch) long, I
don't know the exact horizontal TT measurement, but its makeshift
measurement showed 58 cm (22,83 inch)).


What GT zaskar size would you recommend: M or L? Or mayby I
should look for some 19" frame? Please help.


I'm assuming that you aren't buying this from a local shop, because
then you could just test ride it and they would help you set it up.

Seat tube length isn't really meaningful as long as you can safely
extend the post far enough to get the seat in the right position.

You should consider seat tube angle, virtual (horizontal) top tube
length, and stem length. Get a combination that is a little longer than
what you have now, if you feel your present bike is too short (and your
seat is in the right place!).

GT doesn't say if their TT measurement is virtual or actual... you may
want to contact them, but it is probably virtual.

Seat tube angles are 73 which is very common on MTBs; your current
frame is probably the same.

So we are looking at a TT of 572.5 for the M and 593.5 for the L. So,
you'd probably want the large if you want it longer than your current
bike. Put the seat in the right spot and adjust the stem length and
height to taste.

[frame sizing] GT Zaskar 2005 - M or L ?
 

wrote in :

Hello!

I'm around 182 cm (~6 feet) tall. At the moment I ride 18" hardtail
frame which I find slightly too short (the top tube is 55 cm (21.7
inch) long, I don't know the exact horizontal TT measurement, but its
makeshift measurement showed 58 cm (22,83 inch)).

My inseam is 86 cm (33,86 inch). I need a frame for cross coutry races
and marathons. What GT zaskar size would you recommend: M or L? Or
mayby I should look for some 19" frame? Please help.

All the best,

Lechu



FWIW, I'm 6 feet tall and I have a 2003 GT Avalanche in size Medium. It
felt good when I bought it, but I now wish I had a Large. It came with a
300mm seatpost, which I had extended to the minimum insertion line, and was
still too short, so I have a 350mm post now. Top tube feels cramped and it
doesn't have very good climbing traction.

Nonetheless, the Medium Zaskar has a 19mm longer top tube than my Avalanche
(572mm vs. 553mm), longer chainstays and a shallower seat tube angle, and I
think that those changes would address my handling issues with the
Avalanche, so on a Zaskar, medium might be the way to go.

[frame sizing] GT Zaskar 2005 - M or L ?
 

wrote in message ...
Hello!

I'm around 182 cm (~6 feet) tall. At the moment I ride 18" hardtail frame
which I find slightly too short (the top tube is 55 cm (21.7 inch) long, I
don't know the exact horizontal TT measurement, but its makeshift
measurement showed 58 cm (22,83 inch)).

My inseam is 86 cm (33,86 inch). I need a frame for cross coutry races and
marathons. What GT zaskar size would you recommend: M or L? Or mayby I
should look for some 19" frame? Please help.

All the best,

Lechu

I am 1.83 m tall and ride a 2001 GT Zaskar Race, (L)arge frame. I
unfortunately have no clue as to my inseam, but the frame fits me very well.
The seatpost is extended about 20cm, while the top tube rides well as far as
my preferences go: I prefer a slightly longer measure as opposed to the more
cramped cockpit of the older Treks. What did make a big difference in
"geometry" was the shock. I started with a Rock Shox SID and went to a
Marzocchi MX Pro. I miss the SID, since it had less travel and resulted in
a more aggressive feel, while the Marzocchi is more propped up. But I am
still looking into reducing the shock´s travel...

Good luck!

Basjan