Snow Bike Fork Double Shoulder 20" 4.0" Fat Rebound Adjustment Fat Bicycle Fork. Mountain Bikes, Snow Bike, Fat Bike. The item "Snow Bike Fork Double Shoulder 20 4.0 Fat Rebound Adjustment Fat Bicycle Fork" is in sale since Wednesday, September 9, 2020. This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Forks".goods" and is located in .