With bespoke designs for over 350+ models of motorcycle there is bound to be an application for your bike. These are not "mushrooms"! Unlike most of our competitors, we use de-embrittled high-tensile steel bolts which are designed to bend on impact rather than to shear or snap. In addition, we add compression sleeves inside the bobbins which are designed to allow the retaining bolts to be torqued to the correct specification and not to work loose though vibration.