http://speedgoat.com/
click the mad scientist bike lab on the right and build one up. keep in mind that the lab arbitrarily adds 1000g. as for the reported weights, they're pretty accurate, but you can always double check.
click the mad scientist bike lab on the right and build one up. keep in mind that the lab arbitrarily adds 1000g. as for the reported weights, they're pretty accurate, but you can always double check.