The Circuit Sphere 100 / 150 fuses function, form, and style together to create an unparalleled, performance-enhancing and confidence inspiring shift knob.
FUNCTIONAL & AESTHETICALLY PLEASING
The Circuit Sphere has a weighted core for smooth shifts and a ergonomic delrin grip for the best shifts.
"PERFECT FOR MY TRACK BUILD"
We set out to design a shift knob with the track in mind to help you improve your on track experience.