The PERRIN shift knobs height can be adjusted by as much as 1 inch with the built-in adjustment screw. Once the height is set, tighten the lock bolt and your knob will never loosen on it's own. Best of all, our super locking mechanism will not harm the threads of your shifter!
PERRIN shift knobs come in two different sizes. A Slim 1.6" Knob and a Fat 1.85" Knob for power shifters. The Fat Knob is approximately the same diameter as the OEM STI knob.
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