Features:Features adjustable pivoting wheel guide, which secures front wheel within chock Three adjustable heights depending on diameter of wheel Suitable for wheels with tyre widths 90-130mm and diameters 17IN -21IN (430-535mm) Base can be permanently bolted to the floor (fixings not included), and features a detachable upper assembly that can be easily stored and re-attached when required, stabilising motorcycles without the need for side or centre stands Base features lashing strap gap for securing the bike in transport