While Fulcrum claims the Speed 40 clinchers offer all of the advantages of the tubular version of the wheel, it is worth pointing out that the tubular version is claimed to weigh 1,213g.

Replacing the existing Speed 55 and Speed 40 respectively, this new pair of wheelsets are 2mm deeper than their respective predecessors, at 57mm and 42mm, as reflected by their model names.

Fulcrum has released new Speed 42 and 57 wheels, with deeper and wider rims than the previous iterations of Speed. The new disc-brake only wheels replace the previous 40mm and 55mm sizes, with the ...