alba optics delta aflens photocromatic infocrank This super-quiet model puts out

This super-quiet model puts out only 59 decibels of sound at 20mph

so it is always on hard when you need it

Zipp’s 303 Firecrest® Tubeless Disc-brake wheelset is designed for the real world… a world of imperfect conditions

and other 4iiii products

This particular aspect enables the athlete to stay focused on his performance without interferences

alba optics delta aflens photocromatic infocrank This super-quiet model puts outDELTA uses VZUM AF LENS, a photochromatic lens that adapts itself to the intensity of the light present in the environment and automatically changes colour, shielding off harmful UV rays of any sort. Their temporary transformation takes place in a short period of time but it is, nevertheless, gradual and independent of any atmospheric factors. The optical strain is therefore reduced to a minimum and the lenses remain active even on a cloudy day.