Tarmac Topper – Ball
KB-014-01013
This is a replacement or add-on topper for Kartboy’s StackLock shift knob platform. The Tarmac is the ball-shaped topper. It threads onto a StackLock core and can be swapped with any other Tarmac or Gravel topper.
It is available in three materials:
- White or black Delrin: an acetal plastic that stays cooler in summer and warmer in winter than a metal knob.
- Brushed stainless steel: the heaviest topper in the StackLock lineup. Assembled on a stainless core, the knob weighs 522 g (1.15 lb).
The topper requires a StackLock core, which is sold separately and included in every StackLock Shift Knob Kit. Hold the core with a standard 1/2" drive tool through its internal drive while threading the topper on or off. No special tools are needed.
Specifications
- Shape: Tarmac (ball)
- Diameter: 49.75 mm (1.96")
- Materials: White Delrin, black Delrin, brushed stainless steel
Pairs well with
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Tarmac Topper – Ball
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Built by Die-Hards, Trusted by Legends
For over 25 years, Kartboy has supplied performance drivetrain and suspension components trusted by Subaru owners - from street builds to some of the most capable drivers in the sport.