The flexible and double-cardanic LBK handlebar coupling from FLENDER consists of a split intermediate piece and can therefore be mounted very compactly on the existing gearbox. Two angle joints, which are created by radially arranged rubber elements, allow a radial exchange of the elastomers under the vehicle.

The LBK handlebar couplings in the version with integrated axle connection are equipped with a cyclo-palloid spur gearing which is self-centering. In this version, the TBK is flanged to the driving wheel with a wheel connection.