jazzy_cyclist

I am considering a bunch of different frames for my next (second) road bike. I plan to mostly build this as an exercise to improve my [scant] wrenching skills, and to have a ride that I can experiment with -- trying compact cranks, different bars, etc. I've been reviewing geometry specs for different frames, but even though I understand the differences in an intellectual sense (e.g., longer head tube = more upright ride), it doesn't really give me a sense of what it feels like other than comparing it to my current ride.

As part of the Serotta shtick, I know they use a cycling jig -- an ultimately adjustable frame where it's possible to change top tube lengths, seat tube angles, etc. This seems like a wonderful idea for a virtual test ride: let's say I want to try a Specialized Robaix -- just take the geometry specs and set them up on the jig. Want to try a Litespeed? - boom, set it up with geometry. I realize that this only takes into account one part of the equation - you can't determine "twitchiness" sitting on a trainer (and of course, doesn't count those "intangibles"). My local LBS is a Serotta fitter, but of course, he wants to sell me a Serotta. I just want to use the jig.

Does this seem like a viable approach, or do you guys just get a frame that you can stand over and then buy different stems, seatposts, etc. to "make it fit"?

hi565

That's BS.

The shop should give you an initial fitting, and then from there find a frame/bike etc.

At the shop I go to, you can do an initial fitting where they get you all set, then once they have the measurements can help pick a frame, and in some cases they can say " that bike, that bike, that bike won't really work for you" then you get to test ride.

So maybe consider asking if you can do the process above?

hi565

jazzy_cyclist

^^^ Well, note that I'm not saying that I'm going to buy the frame from them (it's possible that I could, although they have a limited selection) - I'm really interested in determining the correct geometry, and then shopping around.

I have located a place (in cyber-space anyway) who seems to do this, although they are a bit pricey if you don't buy a bike from them (which is not unreasonable) - FitWerx in Vermont. Anyone have dealings with them?

hi565

back to the first shop, they should be giving you the measurements and let you decide whether you buy from them or not.

But if you are not fixed on that shop, why not look around?

hi565

Serpico

sounds like you're doing it backwards

get your measurements off the serotta size-cycle, and then just check the geo tables for whatever frame you're interested in--you're adding a lot of unnecessary steps, you just need to know you're optimal tube lengths and hta and more importantly sta

good luck

jazzy_cyclist

That's essentially the conclusion that I arrived at. But online specs are free - those size-cycles must be a sizeable investment (or a high margin service ) as they charge considerable $$ for their use. I don't think that's necessarily unreasonable - I just don't want a Serotta. Will let you know how it goes.