Clamp Sizes for Type I racks

Pitchfork Type 1 Clamp Sizes
Below are specific clamps sizes for the Type 1 Pitchfork. Remember, this rack only mounts on straight horizontal bars. If you do not see your tower size listed, you may need a Type 2 Rack (which has more mounting options). Please double check your tower size before ordering.
Rack Number	Size Description	Actual tower dimensions (normal tolerances)
PF1-150	fits 1-1/2" round tube	1.49"-1.51"
PF1-163	fits 1-5/8" round tube	1.62"-1.67"
PF1-175	fits 1-3/4" round tube	1.74"-1.76"
PF1-187	fits 1-7/8" round tube	1.87"-1.90"
PF1-200	fits 2" round tube	1.99"-2.10"
PF1-Oval	fits Supra/Moomba Oval	1"x2" Oval Tube
Tip: To figure out the exact size you need -- measure the circumference of the tower with a soft tape measure or piece of paper. Lay the paper flat and then measure length of paper. Take measurement and divide by 3.14. Example: tower circumference is 5.5". Dividing this number by 3.14 yields 1.75. Compare this number with the Actual Tower Dimensions column. In this example, the tower would require an 1-3/4" clamp size or PF1-175.