The renthal apex stem features a unique new clamping system this allows much of the stem body material to be removed whilst retaining the strength and stiffness demanded by modern wide handlebars the clamps are inserted over the small diameter section of the handlebar and slid into the centre giving a 240deg wrap of the handlebar the renthal apex construction comprises a fully cnc machined 2014 aluminium body and 7075 aluminium clamps an oversize centre bore extensive 3 d machining and e