Advanced Side Brackets Maximum Range: Fit and Adjustment FAQ

By AdvancedSimRacing.com | North America's leading | Published: 2026-11-03

Category: How-to Guides

Straight answers on Advanced Side Brackets Maximum Range: seat fit, the +/-20 degree range, slot mounting, and how to set your sim racing seat position.

Quick answer

The Advanced Side Brackets [Maximum Range] fit most FIA and non-FIA bucket seats thanks to large universal mounting slots, and they give you about +/-20 degrees of seat-angle adjustment. Mount them to the seat first, set your angle, then bolt the assembly to your rig.

What the +/-20 degree range actually changes

The range is seat tilt, not fore-aft position. It lets you dial in a reclined or upright bucket-seat angle so your hips, knees, and pedal reach line up before you lock the brackets down. Fore-aft and height still come from your rig's seat rails or mounting plate, so plan those separately.

Where the universal slots fall short

Large slots cover a wide spread of seat bolt patterns, but they are not a guarantee for every shell. Seats with very narrow or very wide side-mount spacing, or with mounting holes outside the slot length, may need different brackets. Check your seat's side-mount hole spacing against the bracket slots before ordering, and remember the catalog does not list a slot length or bolt size, so measure your hardware rather than assuming.

Side bracket fit and adjustment questions

Will these fit my bucket seat?: They fit the vast majority of FIA and non-FIA bucket seats because of the large universal slots. Measure your seat's side-mount hole spacing and compare it to the slot length before buying; if your holes sit outside the slots, these are not the right brackets. Measure hole spacing first; the slots are generous but not infinite.
How do I set the +/-20 degree adjustment?: Leave the seat-to-bracket bolts slightly loose, sit in the seat with your pedals and wheel in place, and tilt the shell until your hip and knee angles feel right. Tighten the bolts evenly on both sides so the brackets stay parallel. Set angle with your full pedal and wheel position in place, not on the bench.
Do I mount the brackets to the seat or the rig first?: Bolt the brackets to the seat first, then set the angle, then attach the bracket-and-seat assembly to your rig's seat rails or mounting plate. This keeps the adjustment accessible and avoids fighting the rig while you tilt the shell. Seat first, angle second, rig last.
What hardware do I need?: The catalog does not list bolt size or included hardware, so use bolts that match your seat's side-mount threads and your rig's rail slots. Check that bolt heads clear the bracket slots and use washers where the slot is wider than the bolt. Confirm bolt diameter and length against your seat and rails before assembly.
Can I adjust the angle after the rig is assembled?: Yes, if you can reach the seat-to-bracket bolts. Loosen them on both sides, reset the tilt, and retighten evenly. If your rig's frame blocks access, you may need to loosen the brackets from the rails first. Plan bolt access before you final-tighten anything.
Do the brackets add height or change my seating position?: The catalog does not give a stack height, so treat any height change as unknown until you measure. Test-fit and check your eye line and pedal reach before tightening everything down. Measure stack height yourself; do not assume it matches your old brackets.

Product facts

Advanced Side Brackets [Maximum Range]: Made of 1/8-inch thick steel and sold in left/right pairs. The steel construction and paired set mean you get both sides in one order for a matched, sturdy seat mount.
Advanced Side Brackets [Maximum Range]
Advanced Side Brackets [Maximum Range]: Large mounting slots make the brackets universal for most FIA and non-FIA bucket seats. You can likely reuse them if you change seats, but verify your shell's hole spacing first.
Advanced Side Brackets [Maximum Range]: Gives about +/-20 degrees of seat-angle adjustability. Enough tilt range to tune a reclined or upright driving position without swapping parts.