You are reading a single comment by @amey and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
amey
About to purchase a new bike and need some advice on stack and reach.
Current road bike (BMC Streetracer) has Stack 57.4cm, Reach 39.5cm. Stem is slammed, and reach with a 120mm stem is ok - although I suspect I would probably be better with a 130mm stem.
Looking at a Cervelo S2/R2 - geometry is the same for both.
56cm bike gives Stack 58cm, Reach 38.7cm
58cm bike gives stack 60.5cm, Reach 39.6cm
Can I compare bikes purely on stack and reach for fit ? Looking at the numbers for the Cervelo's it appears they give a much more upright position, compared to my existing bike. To fit, I'd need a 56cm bike with at least a 130mm stem. The 58cm reach is better, but the stack is enormous.
Quite surprised, wouldn't of though the Cervelo's would be that upright.
On geo alone, the Cannondale Supersix series seems a lot better fit
56cm Stack 55.8cm, Reach 39.5cm
58cm Stack 57, Reach 39.9cm
A 58cm Supersix would seem spot on, and could go for a 56cm if I wanted a lower position.
TL;DR - Is stack & reach a good guide, and are Cervelo's really that upright a position ?