Ti piace calare di peso?  bene, uno sguardo alla scr andrebbe fatto.

Solo per  bici da strada.

Dimensions: Weight 60g +/- 2 g, length 240 mm, width 130 mm.

Oval Rails 7.5 x 7 mm

Maximum weight for cyclist: 80 kg.

Maximum seatpost torque: 6 Nm

Only for road bikes and specially designed for time trial, duathlon and triathlon. 24 cm of length, minimum allowed by the UCI.

via saevid