One twist - and the helmet fits. Helmet manufacturer Lazer is now also offering its "Rollsys" adjustment system, which was previously reserved for the top models "Helium" and "Genius RD", for the more affordable "O2 RD". The 314 gram helmet is only available in one size and the adjustment system works with a small adjusting wheel that tensions a wire cable. The well-made helmet fits heads with a circumference of between 53 and 61 centimetres, and the 24 air vents ensure good ventilation. The only point of criticism is the adjustment wheel, which is sensitive to dirt and sometimes snags when road dirt is thrown up from the rear wheel when riding in the rain.
PLUS: affordable; well made; clever customisation system
MINUS: Setting wheel sensitive to dirt
Reference/Info: Asista, telephone 07561/9869-30
Price: 110 Euro
Size: 53 to 61 cm
Colours: White/silver, white/black, white/blue, white/red, black/grey
Photo: Matthias Borchers
