Sim Racing Seat Accessories for Mounting, Adjustment and Comfort
Seat accessories are the parts that connect a racing seat to a sim cockpit, let you adjust its position and make long sessions more comfortable. Without the right brackets, a fixed bucket seat cannot attach to an aluminium rig frame. Without sliders or runners, the seat position cannot be changed after mounting. This collection covers seat accessories for sim racing from Sabelt, Tillett, Artisans of Speed and Sparco - mounting hardware, adjustment systems, harnesses, seat pads and lumbar support, from €20 to €953.
What Seat Accessories Do You Need for a Sim Racing Cockpit?
The accessories you need depend on your seat model, your cockpit frame and how you want to sit. Most sim racers need at minimum a set of brackets to mount the seat and sliders or runners to adjust the fore-aft position. Harnesses, pad kits and lumbar support are comfort and safety additions that come after the seat is correctly installed.
Seat Accessories at a Glance
Types of Seat Accessories in This Collection
Seat Brackets fix the seat shell to the cockpit frame. Artisans of Speed Universal Seat Brackets (€69) use a universal steel design that fits most racing seat shells. Sabelt Seat Brackets (€79) are designed specifically for the Sabelt SRS, SRP and SRX seat series. Tillett Seat Brackets (STBI, from €86) are CNC-cut 5mm aluminium in inward-facing configuration for flat-floor installations. The correct bracket depends on your seat model and cockpit mounting points.
Seat Sliders and Runners allow fore-aft position adjustment after the seat is mounted. Artisans of Speed Universal Seat Slider (€79) fits most racing seats and cockpit profiles. Sabelt SRP Sliders (€69) are for the SRP-1 seat; SRS/SRX Sliders (€69) fit the SRS-1 and SRX-1 seats. Tillett TRI Seat Runners (from €115) are a more precise adjustment system with a narrow-profile handle, also available in a TK5 kit (€23) for minor position increments. Sparco Slide Runners (€44, currently 10% off) offer a compatible option for Sparco-compatible seats.
Harnesses and Seatbelt Retention add retention to the driver during hard braking inputs. Sabelt Sim Seatbelts (€179) are available in Deep Black, Racing Red and Royal Blue. Tillett offers a full harness range from the bolt-in Clubman (from €189) and Bolt-In (from €172) entry-level options through the Magnum FIA 4-point (from €383) and New Pro FIA 6-point (from €425) to the full Magnum Rally Pack (€905). The Tillett TK9 Seat Belt Retention Kit (€20) is a low-cost addition for drivers who want basic belt retention without a full harness.
Seat Pads and Comfort Accessories improve the fit and comfort of fixed bucket seats during longer sessions. Sabelt offers pad kits specific to each seat model - SRS-1, SRP-1 and SRX-1 Pads Kits (€179–€199, currently subject to availability). Tillett produces Dinamica suede headrest panels (from €115) and panel sets (2-part from €490, 3-part €952) for drivers who want a custom interior finish. The Artisans of Speed Cold Fusion Lumbar Support Cushion (€65) is a standalone addition compatible with most sim racing seats for lower back support in longer stints.
Seat Lowering Kits reduce the installed height of the seat in the cockpit. The Tillett Seat Lowering Kit (€20) is compatible with Tillett B6S, B7 and XL seats and allows the seat to sit closer to the floor without changing the bracket configuration.
Why Buy Seat Accessories from Apex300?
Apex300 stocks seat accessories from four specialised brands - Sabelt, Tillett, Artisans of Speed and Sparco - alongside the matching seat range, so you can source the seat and its accessories from one place. All prices include VAT with no extra charges at checkout. In-stock items dispatch within 1 to 3 business days from a European warehouse, with standard EU delivery in 3 to 7 business days. Returns accepted within 14 days if items are unused and in original packaging. Payment options include Klarna, iDEAL, MobilePay, Bancontact, BLIK, Visa, Mastercard, Apple Pay and Google Pay.
Complete Your Seat Setup
Looking for the seat itself? Browse sim racing seats to find the right Sabelt, Sparco or Tillett model before choosing your accessories.
New to sim racing or building your first rig? sim racing gear first setup walks through what to buy and in what order.
For a full equipment overview, see sim racing equipment - wheelbases, pedals, steering wheels and cockpits all in one place.
Not sure which seat to pair these accessories with? Read which sim racing seat should you buy for a model-by-model breakdown.
Browse the accessories below and match each part to your seat and cockpit.

































































