Asetek Wheel Accessories: Adapter Tube, Rim, and Spring
By Sim Racing Cockpits, Gaming Chairs and more | Published: 2026-10-27
Category: Buying Guides
Understand the key Asetek wheel upgrades: the Adapter Tube for custom sizing, the Closed D Rim for a premium grip, and the Firm Throttle Spring for better pedal control.
Quick answer
The Asetek Adapter Tube, Closed D Black Leather Rim, and Firm Throttle Spring each solve a specific problem: extending your wheelbase, upgrading the grip surface, or fine-tuning pedal resistance.
Why you might need an adapter tube
The Asetek Adapter Tube L.96mm is a simple all-aluminum extension that adds 96 mm to your Quick Release system. If your wheel is too close to your body or your pedals feel cramped, this tube shifts the wheelbase outward without replacing your entire setup.
It works with the Invicta Quick Release Adapter and third-party QR adapters, so it fits a range of builds. The trade-off: it adds length, which can change your seating posture if you have limited cockpit space.
What the Closed D Rim changes
The Asetek Closed D Black Leather Rim replaces your stock rim with a genuine leather surface. It is designed for a variety of driving styles, from smooth road racing to GT cars and competitive racing.
The leather offers a more authentic feel and better grip than standard rubber or plastic rims. However, it is not ideal if you prefer a textured or open-D rim design for finger-over-the-spoke driving.
How the Firm Throttle Spring improves control
The Asetek Firm Throttle Spring is a drop-in replacement for the spring in your Asetek SimSports pedals. It provides higher resistance than the stock spring, giving you a firmer sensation and more precise throttle control.
This is especially useful for sim racers who want to apply more pressure and feel a stronger connection to the pedal. The trade-off: it may feel too stiff if you prefer a light, quick throttle action.
Decision rules for choosing your Asetek wheel accessory
- Need more wheel-to-pedal space?: Choose the Asetek Adapter Tube L.96mm if your wheel is too close to your body or pedals. It adds 96 mm of extension and works with Quick Release systems. Measure your current setup to confirm 96 mm is enough clearance.
- Want a premium grip surface?: Pick the Asetek Closed D Black Leather Rim if you want a durable, authentic leather feel for all racing styles. It replaces the rim on your existing wheel. Ensure your wheel uses a Closed D rim format before purchasing.
- Need stiffer throttle response?: Install the Asetek Firm Throttle Spring if you want higher pedal resistance and better control. It is a simple swap for the stock spring in Asetek SimSports pedals. Test the stock spring first; if it feels too light, upgrade to the firm spring.
Product facts at a glance
- Asetek Adapter Tube L.96mm: All-aluminum tube designed to extend your Asetek SimSports™ Quick Release products. Lets you customize the distance between your wheel and pedals, solving fit issues without buying a new wheelbase.
Asetek Adapter Tube L.96mm - Asetek Closed D Black Leather Rim: Crafted from high-quality materials reminiscent of real sports cars, ensuring both durability and authenticity. Gives you a genuine leather grip that feels more realistic and lasts longer than standard rubber rims.
Asetek Closed D Black Leather Rim - Asetek Firm Throttle Spring: The throttle spring is harder than the one originally included and allows you to have a firmer sensation and even better throttle control. Provides higher resistance for more precise throttle modulation, ideal for drivers who want a heavier pedal feel.
Who should buy these accessories
Best for
- Sim racers who need to adjust their wheelbase distance for a better ergonomic fit
- Drivers who want a more realistic, leather-wrapped wheel rim
- Users who prefer a heavier, more resistant throttle pedal for precise control
Not for
- Racers with very limited cockpit space who cannot accommodate the 96 mm extension
- Drivers who prefer an open-D rim design or textured grip over leather
- Users who like a light, quick throttle action and find stiff springs fatiguing
