The Kuat Trio Fork Mount Roof System features the 3 Way fork mount which fits 9mm, 15mm and 20mm forks, so you can mount any bike, from road to mountain. This rack has a durable black chrome powder coat finish, mounts to most factory and all aftermarket cross bars such as Thule or Yakima, has an integrated cable lock (locks both frame and rear wheel) and its low profile, slim design saves fuel. Max crossbar size is 3.5" wide by 1.7" thick, dimensions are 56"x4"x13/8" and weight is 7 lbs. 1 bike capacity (45 lbs. max). Get the most complete fork mount rack ever designed.