Two-Track – Two-tracking is for skiers with mild motor deficits or those who are visually or hearing impaired. A two-tracker will use two skis. Equipment may include poles, tethers, tip retention device, or a visually impaired or hearing-impaired bib.
Three-Track – Three-tracking is for skiers with one sound leg. A typical three-tracker is an above the knee amputee, but there are other people who three-track as well. A three-tracker will use one ski and a pair of outriggers.
Four-Track – Four-tracking is for skiers with moderate motor deficits. Four-trackers may have disabilities such as cerebral palsy, spina bifida, multiple sclerosis, muscular dystrophy, or below the knee amputation. The four-tracker will use two skis and a pair of outriggers. Other equipment may include tethers or ski tip retention devices.
Slider – Slider skiing is for stand-up skiers with moderate motor deficits or those with balance or strength deficits. Disabilities may include cerebral palsy, brain injury, stroke, or multiple sclerosis. The slider provides a very stable base of support for the skier and has an infinite number of adjustments to accommodate a variety of skiers. The slider skier uses a pair of skis and the slider. The slider is tethered from behind by an instructor and can be taken on the chair lift. The slider must be tethered at all times.
Mono-Ski – Mono-skiing is for skiers who need to ski in a seated position. The skier must have good upper body strength and good sitting balance. A mono-skier may have lower extremity amputations, spinal cord injury, spina bifida or a neuromuscular disease. The mono-ski has a moulded seat in a ski frame which is mounted directly onto a single ski. A mono-skier will use hand-held outriggers. Most mono-skis have a lift assist mechanism to allow the skier to independently load onto a chairlift.
Dual-Ski – Dual-skiing is for skiers similar to those who would use a mono-ski. The dual-ski seat and frame are mounted onto an articulating device mounted on two skis. This allows both skis to work together and provides a wider base of support. It has a lift assist mechanism for independently loading into a chairlift. A dual-skier will use hand held outriggers.
Bi-Ski – Bi-skiing is for skiers who need to ski in a seated position. The bi-skier may have a more involved disability than a mono or dual-skier. A bi-skier may have spina bifida, cerebral palsy, muscular dystrophy, spinal cord injury or brain injury. A bi-skier sits in a moulded shell above two specially designed skis. The two skis give a wider base of support and better balance than a mono-ski. Some bi-skis can be skied independently with use of two outriggers for balance and turning. For beginner skiers and those needing more assistance, fixed outriggers and a handlebar can be utilized. A ski instructor must tether the bi-ski whenever the fixed outriggers are used. The bi-ski has a hinging mechanism that allows the bi-ski to be loaded and unloaded safely from the chairlift.