philip.maree Posted December 30, 2009 Share I am looking to buy another hardtail frame but I am currently sitting the following dilemma My current frame is 'n 20" with a top tube length of 605mm. The 20" frame that I am looking to buy has a top tube length of 585mm and the 22" frame has a top tube length of 595mm. Should I rather go for the 22" frame? Or what else should I be taking into consideration Link to comment Share on other sites More sharing options...
Barend de Arend Posted December 30, 2009 Share I am looking to buy another hardtail frame but I am currently sitting the following dilemma My current frame is 'n 20" with a top tube length of 605mm. The 20" frame that I am looking to buy has a top tube length of 585mm and the 22" frame has a top tube length of 595mm. Should I rather go for the 22" frame? Or what else should I be taking into consideration Oi, that's a can of worms Sounds like you have a sloping top tube, so the first thing to remember is that if that angle is different (one slopes more than the other), you're going to get a different size. You want the virtual top tube -- the horizontal one. Then there's angles: seat tube angle changes the effective top tube. And there's head-tube height, which will change low your handlebars can go. Link to comment Share on other sites More sharing options...
philip.maree Posted December 30, 2009 Share I am looking to buy another hardtail frame but I am currently sitting the following dilemma My current frame is 'n 20" with a top tube length of 605mm. The 20" frame that I am looking to buy has a top tube length of 585mm and the 22" frame has a top tube length of 595mm. Should I rather go for the 22" frame? Or what else should I be taking into consideration Oi' date=' that's a can of worms Sounds like you have a sloping top tube, so the first thing to remember is that if that angle is different (one slopes more than the other), you're going to get a different size. You want the virtual top tube -- the horizontal one. Then there's angles: seat tube angle changes the effective top tube. And there's head-tube height, which will change low your handlebars can go.[/quote'] The current frame has a 70.5? head tube angle and a 73? seat tube angle The new 20" frame has a 71? heat tube angle and a 73? seat tube angle The new 22" frame has a 71? heat tube angle and a 72.5? seat tube angle So what it boils down to is that the seat tube length is different, correct? Link to comment Share on other sites More sharing options...
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