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cervelo t1

Bare in mind that big frames often have steep angles, so short stems can give twitchy handling.

True. The thing is. For example say that my reccomended reach for my height and torso measurement is 70 cm. SO that 70 cm must be Top tube + Stem Reach.

Now you can have 2 bicycles with the same seat tube but bike A has 58cm top tube + 120 Stem and BIke B has 60cm Top tube + 100 Stem which both have 70cm reach. But is that the same regarding bike fit?

Quark.

Its difficult to pick one based on inseam as the frame has compact geometry (slopping top tube). So the seat tube length is misleading.

On a traditional geometry frame, I'd guess at a 62cm (seat tube C-T).

(91 x 0.883) = saddle top to BB center length needed
minus saddle height (5cm), and minus 13cm of seat tube.
Gives a seat tube length (c-t) of 62.

A 62 would usually have around a 60cm top tube (C-C). Bang in the middle of the two sizes.

But given that the frame you are looking at has a steep seat tube angle, you are likely to have to use a bit more saddle set-back, to put you in the correct position over the BB. This increases the distance from saddle to bars. So I'd round down to the 59 top tube of the XL.

This is merly an educated guess though. The absolute best thing would be to work out your reach (saddle to bars), by trying a few bikes out for comfort. Then use this to find your idea top tube length (using say a 110/120mm stem).

If you can test ride to bike in question. Make every effort to do that IMHO.

Hope that helps.

Basically i am after the level top tube version so the sizes are not into the compact geometry category and i am going to use it with a bmx stem at 53mm reach so thats the reason i think the XL size (59cm) will be small for me. Any suggestions on this? I would not be able to try the bike because i don t know anyone to own it here.

Hi there,

I am 193cm tall (6'3') and i want to build a fixed gear bike and i am interested in

The Tonic Fab Supernaut frameset

My worries are the frame sizes.

The Tonic Supernaut Size Ape has a 60cm seat tube (c-t) and a 61cm (C-C) Top tube and the Size XL has a 58cm Seat tube (c-t) and 59cm (C-C) Top tube.

Which one would be more suitable to my height.?

My inseam is around 90 - 91 cm

Last year 2 guys stole my bike which was an fbm sword in greece and i was prety lucky to find it the next day

I heard that about silver spokes too...

still for sale?

I wish i was in london to ride this route with my bike