Bead lock screws with O-rings. Ideal for full-size kart chassis rims, and now most modern cadet kart rims.
Many magnesium rims require a beadlock system to help retain tire sidewall contact with the flange of the rim, to prevent de-beading of the tire during high-grip cornering.
Each bead lock is low-profile, and utilizes a 3mm allen-key to aid in tightening.
Comes as a pack of 6 bead locks, each with a corresponding O-ring.