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Wrench Science Frame Size?(4 posts)

Wrench Science Frame Size?Xoc
Jul 29, 2002 6:22 PM
Hey all,

Is the wrenchscience.com frame recommendation usually pretty close? I'm looking to build my first road bike, and I'd prefer to do it myself, rather then go to a bike shop, as I'm a decent mechanic.

Are the fittings there usually pretty accurate with good measurements?
re: Wrench Science Frame Size?DINOSAUR
Jul 29, 2002 9:56 PM
Depends on how confident you are on the person taking the measurements. My wife did mine and came out with three different inseam lengths. Wrench Science put me on a 58 c-t or a 59 c-t, depending on which inseam I chose to go with. Also two different stem sizes. I finally went to my LBS and the owner did a free fitting for me and put me on a 59 with a shorter stem them the Wrench Science fit. The problem with most fit guides is they are based on averages, and a lot of it depends on preference, flexibility and the geometry of the particular frame you are looking at (IMHO)....
Stem will be the big question...cabinfever
Jul 30, 2002 3:42 AM
You might be able to get away with the wrenchscience recommendation, but should be aware that you may need to swap out your stem after it is built. I am doing the same thing, and got some fantastic deals on parts, so I don't mind buying a second stem if necessary and auctioning off the original.
re: Wrench Science Frame Size?PMC
Jul 30, 2002 5:23 AM
I was not looking for a new bike but used the Wrench Science size program to see what it would come up with. It sized me on a frame 58 C-T with a 140mm stem. I actually ride a 58C-C with a 110mm stem. I'm guessing that the program thought I need more standover than I actually have.

So I guess I'm saying that you really need to have a better idea of what size fits you. A program may come close but may not always be what feels best.