Originally Posted by
gsteinb
You're dating yourself. Bikes are bikes now. I race crits on the same bike pros are doing stage races in europe on. So do you.
Not at all dating myself, Pros most certainly do use different setups / geometries depending on the type of race. I'm not referring to TT versus road either. Milan San Remo will find a different setup than say Tour of Flanders and either the Giro D'italia or Tour De France which will feature specialized setups for the flatter versus mountain stages.
No if you race primarily Crits, and your bike is going to be setup for that type of racing, it may just require a change of wheel sets and perhaps switch crank arm lengths and move the seat but in any case for the Road Race with fast long descents, at 50mph a bit of understeer is preferable to oversteer. So no regardless there are some attributes that need dialing in for either discipline.
You can race on one bike only with no changes whatsoever but it may not be the optimum.