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2 comments
what diameter are the extensions? could you buy a cheap set of dedas (http://www.probikekit.com/display.php?code=K0132) and swap out the extensions?
Depends really - Planet-x do just the clamps, but depends whether your extensions will fit or not. They also do full sets with extensions for not that much.
I've got a set of short Vision ones (which is FSA's more racing line) which I find good, but for racing I think I'll go full carbon for the weight saving.
Have been pretty impressed with the advantage you get against the wind from just holding a more aero position - I reckon probably about 0.5mph as standard thus far, which should boost my times a little bit.