The T47 Maxhit options expand the innovative Maxhit lineup from Enduro. Maxhit is Enduros latest patent-pending innovation; where the bearing is actually the component. Maxhit bottom bracket bearings are designed to thread directly into your bicycles bottom bracket shell, eliminating the need for the aluminum cups that are traditionally used to carry the bearings. This unique design frees-up space for much larger balls that more than double the load capacity compared to standard BB bearings. The kit includes a full selection seals and spacers to ensure proper installation. Machined entirely from 440C stainless steel and guaranteed for life, Maxhit BB bearings include proprietary double-lip labyrinth seals and Enduros extra high pressure grease to ensure a lifetime of trouble-free, heavy duty performance. ALL Maxhit components come with a LIFETIME WARRANTY!