GrimmSpeed Tallboy Shift Knob
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GrimmSpeed Tallboy Shift Knob - Universal
GrimmSpeed has been a go-to name in the Subaru enthusiast scene for shift knobs, and the Tallboy is their boldest design yet. Machined from billet aluminium or Delrin plastic, it's built to sharpen shift feel while adding a distinctive look to the cabin. SKU GRM380007 (Black), with Red and Black Delrin also available.
This listing covers the Universal fitment Tallboy Shift Knob, suited to any vehicle running an M12x1.25 shifter thread. It's available in Black or Red powdercoated aluminium, or a lighter weight Black Delrin option — select your preferred finish and material from the variant selector on this listing page.
Note: This knob does not fit factory 22+ Toyota 86 or Subaru BRZ (ZD8) models fitted with the reverse lockout mechanism.
Specifications
- Material: 6061 aluminium (powdercoated) or Delrin plastic
- Thread: M12x1.25 universal fitment
- Height: 140mm (5.5 in) — sits 35% closer to the steering wheel than standard knobs
- Weight: 284g (aluminium) or 147g (Delrin)
- Finish: heavy duty powdercoat (aluminium variants)
Vehicle compatibility, thread specifications, and fitment notes are provided in the tabs above. Please confirm your shifter thread size before ordering.
Not sure if this shift knob suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
Universal fitment — verify dimensions before ordering.
Technical Specifications
| Spec | Value |
|---|---|
| Part Numbers | Black (GRM380007), Red (GRM380008), Black Delrin (GRM380006) |
| Material | Billet 6062 Aluminium (Black/Red) or Delrin Plastic (Black Delrin) |
| Finish | Powdercoated (Aluminium versions) — colour listed in source description as neon green, which conflicts with Black/Red variant names |
| Height | 140 mm (5.5 in) |
| Weight (Aluminium) | 284 g (0.625 lb) |
| Weight (Delrin) | 147 g (0.325 lb) |
| Thread Size | M12 x 1.25 |
| Shift Position Change | 35% closer to steering wheel vs previous GrimmSpeed shift knob models |
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