nero123 Posted November 28, 2008 Share Hi guys, Id love some advice on bike sizing. I am 184 tall with very long legs and a short upper body. I've measured my self and had it doen at westdene, tour de france, linden etc and all measure the same. 61cm. The problem is that currently I'm riding a L (55.5) giant but the virtual top tube length is a 58.5 which with my upper body just feeld to long. I've had a 90mm stem but the bike is just to twitchy with such a short stem so I changed it to a 110. Would a 56cm (L Scott) compact frame with a top tube lenght of 56 cm be to small for me? The giant is comfortable in terms of seat tube length but to long in terms of top tube? Any advice. Link to comment Share on other sites More sharing options...
AndreZA Posted November 28, 2008 Share Look at a Bianchi. There you can get a 57 with 56 top tube. Link to comment Share on other sites More sharing options...
Canaris Posted November 28, 2008 Share surf the web, look for the geometry of various bikes. Focus on bikes with short TT length, such as treks and raleighs. Consider looking at Crit bikes with aggressive seat post angles (75%), especially American brands, like Trek, Lightspeed, Kona ext Avoid "Touring" bikes like Eddy Merckx (and Euro manufacturers). Most compact bikes have similar geometry, so a giant, raleigh ext will be much of the same. Link to comment Share on other sites More sharing options...
dee_biker Posted November 28, 2008 Share Hi Nero, looks like me and you need to be twins, I've got the exact same measurements! I'm 1.84m, with a 89cm inseam!!! I have finally found a size that works! I have a 56(C-T seat)-56(C-C top) Silverback (XL) frame with a 100mm stem. It gives me a very comfortable riding position. On a frame that size for us, you might just need to lift the handlebar a bit to not having to crouch over too much! Hope this helps! In my experience, it's no use trying to use a frame that some dude using a formula gives you. My theoritical frame size is a 60cm!!! That's WAY too big for me with my short upperbody! Link to comment Share on other sites More sharing options...
pete Posted November 28, 2008 Share Speak to Hanco at CycleFit Cyclefit.co.za They advice on the right size bike and setup Link to comment Share on other sites More sharing options...
wisecrack Posted November 28, 2008 Share I agree I was fittted to a Merida with a top tube of 59cm. It felt way to big andI almost broke my back on that bike. I have a very long inseam with a short torso and I am currently riding a 56 cervelo RS with a top tube of 56.5cm. The RS have a taller head tube though so make sure like dee biker mentioned your headtube is tall enough otherwise you could end up with some serious neck pain. Link to comment Share on other sites More sharing options...
nero123 Posted November 28, 2008 Share Cool, Thanks for all the advice guys, it helps alot! Link to comment Share on other sites More sharing options...
Spinnekop Posted November 28, 2008 Share http://www.competitivecyclist.com/za/CCY?PAGE=FIT_CALCULATOR_INTRO Link to comment Share on other sites More sharing options...
andre_ct Posted November 28, 2008 Share http://www.competitivecyclist.com/za/CCY?PAGE=FIT_CALCULATOR_INTRO cool...i'm gonna need this SOON i'm about 1.9m, and just this morning i realised how much my Scott L 56cm dont fit me coz i used a borrowed bike in the week which felt better i suspected it, but had nothing to compare it to Link to comment Share on other sites More sharing options...
dee_biker Posted November 28, 2008 Share What was the size of your borrowed bike? Link to comment Share on other sites More sharing options...
Willehond Posted November 28, 2008 Share I'm looking at buying a Canyon bike and they have the coolest fitment tool on their site. You fill in loads of body measurements (like the competitivecycling website) and it shows your body position onscreen. Very neat! What was interesting was that it suggests a 54 cm bike for me if I want a 'racing' geometry or a 56 if I want 'relaxed' and I am 185cm! www.canyon.com Also have a read on what Sheldon Brown writes about it. He mentions that your upper body length should be more important with modern sloping frames and that the frame size written on the frame means buggerall. Each manufacturer has different size! Link to comment Share on other sites More sharing options...
wisecrack Posted November 28, 2008 Share True I'm 1.89 with a 92cm inseam. Test ridden both the 56cm and the 58 ,but with cervelo's compact geometry for the RS and the taller headtube the 56 fits me perfectly. Link to comment Share on other sites More sharing options...
AndreZA Posted November 28, 2008 Share Also have a read on what Sheldon Brown writes about it. He mentions that your upper body length should be more important with modern sloping frames and that the frame size written on the frame means buggerall. Each manufacturer has different size! finally someone was listening to me. Link to comment Share on other sites More sharing options...
Canaris Posted November 28, 2008 Share Also have a read on what Sheldon Brown writes about it. He mentions that your upper body length should be more important with modern sloping frames and that the frame size written on the frame means buggerall. Each manufacturer has different size! finally someone was listening to me. ditto Link to comment Share on other sites More sharing options...
barrykm Posted November 28, 2008 Share I'm looking at buying a Canyon bike and they have the coolest fitment tool on their site. You fill in loads of body measurements (like the competitivecycling website) and it shows your body position onscreen. Very neat! What was interesting was that it suggests a 54 cm bike for me if I want a 'racing' geometry or a 56 if I want 'relaxed' and I am 185cm! www.canyon.com Also have a read on what Sheldon Brown writes about it. He mentions that your upper body length should be more important with modern sloping frames and that the frame size written on the frame means buggerall. Each manufacturer has different size! Thanks, that fitment tool really looks nifty. Worth playing around with to get a better understanding of fitting. Link to comment Share on other sites More sharing options...
andre_ct Posted November 28, 2008 Share What was the size of your borrowed bike? told it is a 58cm. it's a Trek 2300 frame Link to comment Share on other sites More sharing options...
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