Rally Grip – Ergonomic Thrustmaster TH8S Shifter Knob

Rally Grip – Ergonomic Thrustmaster TH8S Shifter Knob

Give your sim racing setup a new feel with Rally Hex, a futuristic, faceted shifter knob designed for comfortable grip, easy assembly, and creative customization.

Inspired by rally car controls, its symmetrical hexagonal shape combines a distinctive look with a tactile surface designed to feel good in your hand.

🏁 Designed for comfort and control

The ergonomic shape and fine surface detailing give your hand a comfortable, secure-feeling grip while shifting. The faceted silhouette gives Rally Grip a distinctive motorsport-inspired look without sacrificing practicality.

🎨 Multicolor look, without a multicolor printer

Create your own color combinations using separately printed parts. No MMU, AMS, or other multicolor printing system is required — just print the parts in your chosen filaments and assemble them.

Want an even better tactile feel? Print the optional grip ribs in TPU for a softer, more comfortable contact surface.

🔩 Simple assembly — no glue, no extra hardware

• No glue required.

• No need to buy additional screws or other hardware.

• A single 3D-printed screw holds the assembly together.

• Assembly requires only a standard flathead screwdriver.

Print the parts, assemble them, tighten the printed screw, and you're ready to race.🛠 Designed for the official TH8S adapter

The knob is designed to work with the official Thrustmaster TH8S adapter:

https://www.printables.com/model/1825116-thrustmaster-official-th8s-gear-knob-files

Print the adapter separately if you don't already have one. Please follow the adapter project's instructions for mounting it to your shifter.

🖨 Recommended print settings

• Layer height: 0.2 mm for the main parts.

• Fine detail: 0.1 mm is recommended for the upper part of the top component if you want a finer finish.

• Grip ribs: Use TPU for a softer feel; a firmer filament can be used for a rigid version.

• Multicolor: Print the individual parts in different filament colors and assemble them.

• Assembly: Use the included 3D-printed screw. No glue or additional hardware is needed.

Note: Depending on tolerances of your setup middle part can be scaled up or down (along Z axis only!) to fit ribs.

Make it yours

Choose your favorite colors, experiment with TPU grip ribs, and build a shifter knob that matches your racing setup.

Rally Hex — your grip, your colors, your style.

If you face any issues, drop me a line, I'll try to fix them.