Fulcrum Racing 4...
Wondered if anybody new anything more about these? I've got a set on my Tarmac SL3 and am thinking of upgrading, but want to get a slightly clearer understanding of where I'm starting from (ideally without removing tyres, tubes, cassette etc. and weighing them!).
From simple observation, they appear to be very similar to Fulcrum Racing 3s, but with a higher spoke count (20 front / 24 rear); they have the same milled rims (no differentiated rim height though) and don't use the spokes to balance the wheel (Dynamic Balance?) like the 5s.
The hubs have appear to be aluminium (like the 3s) as opposed to plastic (5s) but do they use cartridge bearings or cup and cone?
What I'm trying to ascertain is, ideally, the weight of the wheels and the quality of the hubs....any help greatly appreciated