alba optics delta aflens photocromatic spare parts The 14 tooth upper and

The 14 tooth upper and 18 tooth lower pulleys reduces chain drag while the custom designed carbon fiber pulley cage ensures both durability and light weight

6 hours of music and calls

light weight

Integrated Sensors:

alba optics delta aflens photocromatic spare parts The 14 tooth upper andDELTA 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.