R Theory Weighted Brass Shift Knob

A weighted shift knob CNC machined from dense brass by R Theory Motorsports. The extra mass makes gear changes feel smoother and more precise, an inexpensive change with a noticeable result. The outside is nickel plated for a long-lasting silver look, brushed or polished.

The knob threads on through a separate bushing locked in by set screws, which is how R Theory offers several thread pitches. The bushing can also be set deeper in the knob to close the gap down to the shift boot.

Fits

• Universal: shift levers with an M10 x 1.25, M10 x 1.50 or M12 x 1.25 thread; choose the pitch that matches the car's lever

Specifications

• Brass, nickel plated, brushed or polished finish
• Sphere: 575 g (1.26 lb), 52 mm diameter x 48 mm tall
• Handle: 555 g (1.22 lb), 30 mm diameter x 100 mm tall
• Tear Drop: 848 g (1.87 lb), 52 mm diameter x 86 mm tall
• Weights include the threaded bushing

In the box

• 1 brass shift knob in the chosen shape
• 1 threaded bushing in the chosen pitch
• 2 stainless steel set screws
• R Theory stickers

Import tariffs covered: the price includes the US import tariff, so there is nothing extra to pay on delivery.

Returns

• Returns are accepted within 30 days of delivery on new, uninstalled parts in their original packaging, less a 20% restocking fee.
• Return shipping is paid by the buyer, unless the return is due to our error, and the original shipping charge is not refunded.
• Installed or modified parts, electrical parts and made-to-order items cannot be returned.
• A part that arrives damaged, faulty or wrong: contact us within 7 days of delivery with photos of the part and the box.
• Contact us to start a return before sending anything back; returns ship to our shop, and we send the address.