Trek Bikes is a leading biking company. They sell a variety of bikes including mountain, cross-country, and electric. Trek also offers a large selection of biking gear and apparel. The website features tools to help visitors pick out their ideal bike, no matter what their use case. ### Affiliate Program Details Trek Bikes offers an 8% commission on sales. While gear and apparel sales are more common than bike sales, due to the larger price tag, shoppers are encouraged to spend at least $50 to get free shipping. The average order amount is over $100.