Elite Arion Parabolic RollerComes with a very light frame (approx. 7 kg), ultra strong, in glass fibre reinforced polyamide and parabolic rollers, 85mm in diameter in the middle and 100mm at the sides, make it easy to keep balance on the bicycle. Maximum control and ease of pedalling, acheived because the wheel is guided towards the middle of the roller and with a perfectly smooth surface on the rollers and the compound  in anti-static plastic  material reduce noise and tyre wear.A platform is incorporated in the structure for easier mounting and dismounting as well as being compact and foldable, making it easy to store.Compatible with road bikes and MTBsDimensions: open 141x49,5x16 cm, closed 73x49,5x22 cm