The Roll-Line Variant M (Metal Trucks) Plates are for the beginning competitive skater in their learning stages and provides the same level of articulated performance as all of the upper level Roll-Line frames, but at a very affordable price. Featuring 7mm axles in the strongest steel available, an ultra lightweight frame and adjustable pivot pins. The Roll-Line mechanism action adjustment system provides accurate action adjustments using the 04 series, 13mm base king pins with adjustment nuts and locking screws. The Variant M is forged from a solid bar of aircraft aluminum alloy and is completely CNC-machined. Choose from three available toe stops. Choose standard, natural rubber or urethane suspensions, in your choice of hardness. Plates are sized according to wheelbase measurement (from centre of front axle to centre of rear axle) from 90mm to 190mm. If you aren't sure, please ask for advice on selecting the right size for your needs!