Aberfoyle Snomobiles carries J & T ATV Tri-Hub delete kits, Stealth Big Wheel kits, R-XC/RR/SP5 4th wheel kits, and Firecat 4th wheel kits. These kits are made of high quality oversize axles, much larger bearings, and stronger wheels, offering a huge improvement over stock.
The design of an Arctic Cat Tri-Hub bolts the two rear wheels together, in the event of a bearing failure the other bearing due to the fixed nature of the assembly will also prematurely fail. We have seen Tri-Hubs fail in as little as 1,500 miles on sleds with studs, so we highly recommend the Tri-Hub delete kit.
Also offered in 8.500" for the 137-141" sleds.