Choosing the right m062 frame size

[creborn]

Hello everybody. My second post here. I tried searching, but came up short. This is my dilemma. I'm 186-187cm (that's 6'13"). My inseam is 89cm (35"). I have some serious back problems (herniated disc), and a bit longer arms that I should. I weigh up to 225pounds with my gear. So.. not a small guy.

I have a local forum member selling a workswell 062 frame in size 18,5". The customer service says I can use 20", but I can fit 18,5". Not much help there.

My current ride has a TT of 610cm, and ST of 49cm. The 062 has TT of 620cm, and a bit lower ST (47cm) which is not a problem, since i have almost 15 cm of seatpost to spare.

I find my current bike fit pretty good. My stem is 90mm long, and the seatpost has a slight setback. So in theory, with a 1cm longer TT, and with either the same post or a straight one.. the 062 could fit me great. All other dimensions like HA and WB are almost spot on.

Any real life experiences of tall-ish riders out there?

I strictly ride and XCM rides, forest trails, gravel, dirt... ad a little of root and rock. Nothing overly technical.

will the frame assplode under me? (the workswell said the frame is good up to 200kg).

help me out before I spend all my kids lunch money....

I'll attach the pic of my current ride...

[bxcc]

I am 181.5cm tall and ride the 18.5. At your height, I would definitely go with the 20” frame. You could make the 18.5” but it wouldn’t be ideal.

[numberzero]

TT is linked to seat tube angle and it's not appropriate to use it alone.
If you want to replicate your position look at reach and stack then you'll know which stem to put. You can potentially be well positionned on each size playing on stem lenght/angulation and seat post lenght/setback but your bike won't handle the same.
HA and WB reflect the way the bike will handle and have nothing to do with positionning.

[creborn]

I don't have the reach numbers for my frame. Is it possible to measure it?

That's a bummer if it's to small

[numberzero]

I don't have the reach numbers for my frame. Is it possible to measure it?

That's a bummer if it's to small

I use the same technique described here :http://www.velonews.com/2012/05/bikes-and-tech/technical-faq/technical-faq-setting-your-bikes-up-identically_216035#

[creborn]

Stack 64cm, reach 46cm. So.. 18,5" is definitely to small