Rated 5 out of 5 stars.
Alright, so this is a Shift Solutions Co.

thread adapter for your shifter knob.
It converts an 8x1.25mm inner diameter to a 12x1.25mm outer diameter.

Made from aluminum, color is black.
Part number is EBRAKE.

If you've got a knob that doesn't quite fit your shift lever, this little adapter sorts it out.

Brand new, simple, and effective.

No more wobbling or mismatched threads.
