V2 ATRA Speed Reducer swixcloseout we can simulate different forces

we can simulate different forces on a virtual model of the frame and adjust the frame construction accordingly

A simple-to-use button lets you attach or detach the strap without removing your hand from the strap

and multiple carry handles make for easy lifting

GuaranteeThe woom 10-year warranty

and just the right amount of secret sauce

V2 ATRA Speed Reducer swixcloseout we can simulate different forcesThe ATRA (Advanced Training Resistance Aluminum) Speed Reducer has a machined aluminum bearing retainer for the best heat dissipation and strength. The lever actuated system has one neutral and four resistance positions that are easy to engage, whether for increasing resistance or for slowing the skis down when negotiating moderate downhills. Sold in pairs, it mounts to the front of each roller ski. For steep terrain, we recommend the use of a brake.