Will I fit, how much does size matter in bike fit?

[tchak attack]

I found a Cannondale frame and fork up on eBay. My question is will it fit?
Cannondale is 63cmST/60cmTT/101.9cm wheel base/40.5cm chainstay
My Rock Lobster 66cmST/63cmTT/107cm wheel base/42.0 cm chainstay
I have a 12.5cm stem. If I use a 14.0 on the Cannondale? Any opinions.

http://cgi.ebay.com/ws/eBayISAPI.dl...AMEWA%3AIT&rd=1

 

[martin_j001]

It wouldn't be worth it, in my opinion. The Cdale is 3cm shorter in both seat tube and top tube lengths. That can't necessarily be made up with raising the seat and using a longer stem--there's more issues than that involved in bike fit.

 

[shannons dad]

It wouldn't be worth it, in my opinion. The Cdale is 3cm shorter in both seat tube and top tube lengths. That can't necessarily be made up with raising the seat and using a longer stem--there's more issues than that involved in bike fit.

I agree with you on one point. The seat post can be raised, but he'd have to move the saddle forward on it's rails or get an in-line seatpost. A longer stem can be used, but the steering characteristics would be stuffed up, more stable in a straight line, but more likely to flip the bike over if he slammed on the brakes and turning would be slower.

Bill.