Brand x enduro mountain bike stemcreated from a 3d forged aluminium construction, this stem is highly durable and stiff, yet also incredibly lightweight, so you can tackle whatever challenges you meet on the trails'. '.strtoupper('d')esigned to be used alongside a bar with a clamping zone of 31.8mm, it is available in lengths of 40, 50 and 60mm.the flip flop design allows the user to easily run it upside down to help keep the front end low ideal for a 29rdquo or 27.5rdquo bike, where the front tends to be higher than you may want.featuressizes 40mm, 50mm, 60mmrise 3 degreesclamp diameter 31.8mmmaterial 3d forged aluminiumfinish anodisedcolour blacken m approvedweight 114g 40mm, 131g 50mm and 134g 60mmbuy brand x components from chain reaction cycles, the world's largest online bike store.