Sizes and weights Series 7510 / 7520
7511 / 7521 receiver bottom connection

sizes in inch.     go to sizes in mm.
Size A B C D E F Wght
(lb)
2½" 2.68 1.17 2.48 1.52 0.55 0.39 0.345
4" 4.13 1.83 3.90 2.48 0.87 0.67 1.190
6" 6.22 2.17 5.85 3.62 0.87 0.77 2.260