Seat Mounts are fitted for 1-1/4, 1-1/2, 1-5/8, and 1-3/4 OD tube.
Made of 6061 aluminum with grade 8 hardware.
Provide a strong bolt-in adjustable solution when needing to support the upper half of your seat.
Two 5/16-24 bolts clamp the mount onto your roll bar, there is a 3/8 bolt hole in center ( bolt included) which allows you to fasten the mount directly to your roll bar which is required per NHRA rules.