XL150SC: This popular combi ski is similar to the XL150S, but has a longer shaft and a clutch wheel in the front. This is an excellent combi ski, especially for those who have rougher roads, but due to the narrower wheels it requires good balance to classic ski on. Optional outriggers can be mounted which prevent the ski from tipping to the side and is recommended for all beginners or those that do not have good balance.