Abstract: A brake includes two rockers, two shoes attached to the rockers and two linings attached to the shoes. The brake pinches a rim without overheating the rim. The rim includes two walls and a bridge. Each of the walls includes a first portion within the bridge, a second portion beside the bridge so that the bridge performs as a heat sink and supports the second portion and a third portion beyond the bridge in order to clamp a tire. The two linings pinch the second portions of the walls. An anchor attaches the top of each of the shoes to the related rocker and is vertically spaced from the linings.

Abstract: Disclosed is a brake for pinching a rim without overheating it. The rim includes two walls and a bridge. Each of the walls includes a first portion within the bridge, a second portion beside the bridge so that the bridge performs as a heat sink and support for the second portion and a third portion beyond the bridge in order to clamp a tire. The brake includes two rockers, two shoes attached to the rockers and two linings attached to the shoes in order to pinch the second portions of the walls. A phantom line intersecting the centers of the linings is different from a phantom line intersecting the centers of the anchors.