King Cage Universal Support Bolt


SKU: KNGUSBL Category: Tag:

King Cage recommends using electrical tape or cloth rim strip to protect the frame or fork legs. Rubber inner tube will lead to clamp breakage. Tighten clamp after use.

***Note: Doesn’t work with the Salsa EXP Cage – The plastic on that cage is too thick***

King Cage products are only available for in-store purchase.


Simply attach the USB mounts to your frame or fork, then secure your cage to them, and you’re ready to go! Available in three sizes to accommodate various tube diameters.

***These are sold individually, and the dimensions correspond to the tube diameter***


Wondering which USB size fits your bike?

  • Measure the circumference of the area where you’ll place the USB using a string. (For example: Let’s say the string measures 5.5 inches.)
  • Divide the circumference by 3.14 (pi) to find the diameter. (In our example: 5.5 inches / 3.14 = 1.75 inches)
  • Use the diameter to choose the correct size:
    • If the diameter is around 1.375 inches, go for the 1 3/8 USB.
    • If it’s about 1.625 inches, pick the 1 5/8 USB.
    • If the diameter is closer to 2 inches, opt for the 2-inch USB. (For instance, with a diameter of 1.75 inches, you’d order the 2-inch USB.)


Comes in 6 sizes, perfect for all your bike accessories:

1 1/8-inch: Fits handlebars, seat stays, etc. (minimum diameter 3/4 inch)

1 3/8-inch: Ideal for steel frames and forks

1 5/8-inch: Designed for 32mm suspension forks

2-inch: Suitable for aluminum tube bikes, 36mm suspension forks, etc.

2 1/4-inch: Fits bikes with larger tubes

2 1/2-inch: Also for bikes with larger tubes, or get creative!

Weight: 10g