Specialized Allez 2010 Frame stays
Aluminium frames have been criticised very justifiably sometimes for being unduly harsh in their ride quality but manufacturers have got clever about how they manipulate the big tubes to provide stiffness where it's desirable - no-one wants a frame wobbling through 45mph corners - and comforting where it matters to save your poor sorry arse when you're on mile 94 of your first Century. The skinny bits that hold your back wheel on and make it behave while you're powering 300 watts (yeah right - ed) through the chain off to one side, the seat and chain stays, are a more complicated matter and here frame builders are rightfully nervous about shaving strength. Here Specialized have curved the stays to tune in some compliance without compromisingthe necessary strength and stiffness. We'll have to see how that works out.