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Billetworkz Weighted Shift Knob - 6-Speed Standard Miata Engraving for Mazda (RLU)
10 reviews
Regular price
$99.00
Sale price
$99.00
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Upgrade Your Shifting Experience and take control of every shift with the Billetworkz Weighted Shift Knob, designed specifically for 6-Speed Mazda manual transmissions with Reverse in the Left Up position. This version features a silver laser-engraved 6-Speed Shift Pattern with our "Standard + Miata" engraving, adding a unique look to your interior that is made to last.
Made from solid 304 stainless steel, each knob is precision CNC-machined and powder-coated for a standout finish that elevates your interior.
The added mass delivers smoother, more precise shifts with a satisfying, controlled feel—especially during spirited driving. Expect quicker, more confident gear changes and an immediate improvement in overall shift responsiveness, whether you're commuting or carving through corners.
All Mazda Shift Knobs are designed to replace your OEM shift knob for a clean, factory-style fit and feel. Thread pattern: 10x1.25mm.
Want the cleanest install? Add a Billetworkz Boot Retainer to remove the gap between your shift boot and knob.
Looking to personalize it? Order Here!
Materials
Materials
- 304 Stainless Steel: Durable and corrosion-resistant
- Powder Coated Finish: Long-lasting protection with a sleek look
- Laser Engravings (if applicable): Appear in silver, regardless of knob color
Specs
Specs
All measurements include weight, diameter, and height.
Sphere – 450g / 2.00" wide / 2.00" tall
Lightbulb – 500g / 2.00" wide / 2.375" tall
Short Teardrop – 450g/ 2.00" wide / 2.25" tall
Tall Teardrop – 650g / 2.00" wide / 3.00" tall
Piston – 475g / 1.50" wide / 3.00" tall
Sledge – 1000g / 2.25" wide / 2.50" tall
Nexus – 570g / 1.80" wide / 3.00" tall
Apex – 530g / 1.90" wide / 3.25" tall
Chonk – 690g / 2.00" wide / 2.50" tall
Installation Guide
Installation Guide
Installing your shift knob is simple—and we’ve got you covered:
Processing Time
Processing Time
Most orders ship within 1–3 business days, but processing times can vary depending on inventory, color selection, and customization options.
Our Guarantee
Our Guarantee
Your satisfaction is important to us. Most standard items are eligible for returns within 15 days, and all Billetworkz products are backed by our Limited Lifetime Warranty.
See our full Refund Policy and Warranty Details for complete information.

Billetworkz Weighted Shift Knob - 6-Speed Standard Miata Engraving for Mazda (RLU)
$99.00
Added Weight for Smoother, More Controlled Shifts
The increased mass helps each gear engage with less effort, giving you a more fluid, satisfying shift feel compared to lightweight or plastic knobs.
Precision CNC-Machined for Perfect Balance
Every knob is cut from premium billet material and engineered for ideal geometry, delivering a stable, vibration-resistant feel in every gear.
Multiple Shapes, Finishes & Engraving Options
Choose from a range of profiles — Sphere, Lightbulb, Short Teardrop, Tall Teardrop, Piston, and our newest additions Nexus, Apex or Chonk — plus custom colors, patterns, and engravings to dial in your exact style and shift feel.
Customers praised this weighted shift knob for its exceptional quality, smooth shifting, and premium feel. Reviews highlight "worth every penny" value despite the price point. The added weight enables easier, smoother gear changes. Easy installation takes under 5 minutes. One customer noted a gap with the shift boot, suggesting a retainer purchase for better fit.
- 5 stars: 9 (90%)
- 4 stars: 1 (10%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
K
Karry Sor Candy Red / Sphere
Got the ball shift knob in candy red. Goes perfect with the red Nappa interior. Install was easy.
D
Demetrio Salinas Candy Red / Tall Teardrop
Skeptical at first spending $100 on a shift knob but it was worth every penny.
B
Brett Bernstein Gloss Red / Tall Teardrop
Teardrop in red. Great look and weight. Smoother shifting. Surprisingly good
A
Anonymous Gloss White / Sphere
Fantastic shift knob. Nearly matches my pearl white paint. Great feel and looks.
K
Kenneth Halpin Gloss White / Sphere
PERFECT.
K
Kevin T Gloss White / Lightbulb
Great look and quality! My only observation is that the ugly gap between the knob and the shift boot. I wound up ordering it separately and it looks/fits much better. Would make sense to offer them as a package.
J
Jason Campbell Gloss Red / Sphere
Such a Great Product. It enhances the look of the interior and make shifting gears a breeze!! Thank you Billetworkz Team for the great customer service!
R
Ron Santos Gloss White / Sphere
Great shift knob. A little heavier than the stock knob on my 2008 Miata.
The extra weight makes for fingertip shifts at a leisurely pace. Feels good in the hand and quicker shifts are also a bit smoother than stock.
E
Eric Candy Red / Lightbulb
Everything about this shift knob is excellent. The weight, fit, etching, and color. It may seem expensive but it’s worth every penny.
M
Michael Saylor Gloss White / Sphere
The title says it all. Two 17mm open end wrenches are all you need, then just adjust the jam nut and adapter until the shift pattern is lined up correctly. Did it in my driveway in well under 5 minutes.