Sim Racing Rig Accessories: What to Add First
By Sim-Lab - Making motorsports accessible | Published: 2026-10-17
Category: Buying Guides
Prioritize sim racing rig accessories that solve a problem you actually have. Here is how to rank cup holders, Allen keys, caster wheels, and seat mounts before you buy.
Quick answer
Buy the accessory that removes a recurring annoyance, not the one that looks most impressive. For most sim racers, a nine-piece Allen key set pays for itself the first time you adjust your rig, a cup holder keeps drinks off your electronics, and caster wheels only make sense if you need to move the rig. Seat mounting comes last because it is seat-specific and should match the seat you already own.
Start with the accessory you will touch every week
The first sim rig add-on should be something you use during setup or maintenance, because that is where cheap tools create the most friction. A mismatched hex key rounds a bolt head and turns a five-minute adjustment into an hour. A dedicated set that stays with the rig removes that risk and keeps your workspace organized.
If your rig is already stable and you rarely adjust it, skip tools and look at comfort or convenience instead. The goal is not to collect accessories; it is to remove the small interruptions that make you skip a session.
Cup holder: convenience with a mounting check
A cup holder is worth it when you already have aluminium profile within reach and you want a drink off the floor or away from your wheel base. The Sim Cup Holder mounts directly to aluminium profile, so it suits profile-based rigs rather than desks or tubular frames.
Check that you have a free section of profile where the holder will not collide with your wheel, shifter, or monitor mount. If your rig has no exposed profile near your seating position, this accessory will not fit without extra parts.
Caster wheels: only if the rig needs to move
Caster wheels solve a specific problem: a rig that shares space with a desk, a sofa, or a door. The Caster Wheels Set uses a steel housing and a polyurethane tread, and each wheel is rated for 40 kg. That rating matters because four wheels share the load, so you should add up the rig, seat, and driver weight before assuming a set will roll smoothly.
If your rig stays in one spot, casters add height and can introduce movement. Fixed feet or leveling hardware are usually the better choice for a stationary setup.
Seat mounting: buy for the seat you own, not a future one
Seat mounting is the least flexible accessory on this list. The Seat mounting for Mercedes-AMG PETRONAS Formula One Team Sim Racing seat includes a seat slider and brackets, but it is designed exclusively for that seat and is not compatible with other seats in the range. If you own a different seat, use the standard seat brackets instead.
Buy seat mounting only when you have the matching seat and you need slider adjustment. Buying it as a speculative upgrade usually leads to returns or extra drilling.
Decision rules for first sim rig accessories
- If you adjust your rig more than once a month: Prioritize a metric Allen key set that stays with the rig. Using the wrong size is the most common cause of damaged bolt heads during profile adjustments. Buy tools before convenience add-ons.
- If your rig uses aluminium profile and you drink at the wheel: A profile-mounted cup holder keeps drinks away from electronics and the floor. Check for a free profile section that does not interfere with steering or monitor mounts. Measure the mounting space before ordering.
- If the rig must move between sessions: Caster wheels make sense only when the total weight stays within the combined load rating. Add up rig, seat, and driver weight, then compare with four times the per-wheel capacity. Stationary rigs should skip casters.
- If you are buying seat mounting: Match the mount to the exact seat model. The Mercedes-AMG PETRONAS bundle is exclusive to that seat; other seats need standard brackets. Never buy seat mounting as a speculative upgrade.
Accessory facts that affect your decision
- Sim-Lab Allen Key Set: Nine-piece metric hex key set supplied with a plastic holder that keeps the keys organized and makes each size easy to identify. A complete, organized set reduces the chance of using the wrong size and damaging bolts during rig adjustments.
- Sim Cup Holder: Cup holder made of solid plastic that mounts directly to aluminium profile; package includes the cup holder, mounting plate, nuts, and bolts. You can install it without sourcing separate hardware, but it only fits profile-based rigs with a free mounting section.
- Caster Wheels Set: Set of four caster wheels with a 50 mm wheel diameter, 18 mm tire width, and 40 kg load capacity per wheel. The per-wheel rating lets you estimate whether the set suits your total rig weight before you buy.
- Seat mounting for Mercedes-AMG PETRONAS Formula One Team Sim Racing seat: Seat mounting bundle designed exclusively for the Mercedes-AMG PETRONAS Formula One Team Sim Racing seat, including seat slider and brackets; not compatible with other seats in the range. Confirm your seat model first, because this bundle will not fit other seats and standard brackets are the alternative.
Who should buy which accessory first
Best for
- Racers with an aluminium profile rig who adjust pedals or wheel position regularly
- Drivers who want a drink within reach without placing it on the rig frame
- Owners of the Mercedes-AMG PETRONAS Formula One Team Sim Racing seat who need slider adjustment
Not for
- Desk-mounted or tubular-frame setups where profile-mounted accessories have nothing to attach to
- Stationary rigs that never move and do not need casters
- Racers with a different seat model who need standard seat brackets instead
