Choosing a Shift Knob Size: 60mm to 254mm, Explained
We make knobs from 60mm up to 254mm, and the size someone should pick depends on more than which one looks biggest in a photo.
What does the size number actually measure?
Overall height, base to top, in millimeters — not diameter. A 254mm knob is roughly 10 inches tall; a 60mm knob is about 2.4 inches.
What changes as size goes up?
Mainly reach and leverage. A taller knob puts your hand further from the shifter's pivot point, which changes how much movement your hand makes for a given shift — some drivers prefer the extra leverage, others find it changes the feel more than they want.
Which size is "normal"?
140mm (5.5 inches) is the size closest to a typical stock shift knob's height for most cars, which is why it's our most common size. 95mm and 115mm sit lower and more compact; 190mm and 254mm are the two sizes we hear about most often specifically for show builds, since the extra height reads well in photos without changing the shift throw itself.
Not sure which to pick?
If in doubt, 140mm is the safest default for daily driving. If you're building specifically for shows, our show-build guide covers why 190mm and 254mm come up so often.
