Abstract: An anti-lock brake for in-line skates, skateboards, or the like. The brake is adapted to be selectively secured to the wheel frame proximate the rear wheel and comprises a pivoting tongue member engaging the circumference or ground engaging surface of the rear wheel when an integral braking skid pad is caused to firmly engage the ground. A resilient member resiliently inhibits the tongue member for engaging the rear wheel except during a severe braking operation. The skid pad remains the primary braking mechanism, and the tongue provides a second anti-lock braking mechanism. The tongue of the pivoting member has a concave surface closely conforming to the contour of the rear wheel to minimize tire wear, and further insures that wear does not distort the shape of the wheel. A large contact surface is established when the braking tongue engages the wheel to distribute the heat generated therebetween to reduce the chance of the wheel melting.

Abstract: An improved skate assembly which permits interchanging and reversing of ice blades and in-line rollers. The arrangement provides for such interchange through utilization of a pair of rotatable cams which are utilized to couple the blade support to the toe and/or heel of the boot. Also, an interlocking notch/projection may be employed to achieve secure mounting of the blade support subassembly to the boot. Also disclosed is an attachment mechanism which can be used by the hands, and which requires no external tooling.