they are the same units

and presses cartridge bearings and cups into one piece bottom brackets

easing you back into your workout smoothly

Maximum ventilation

What does it include: It includes the most commonly used bits for a bike: 2

Fox Dropframe Pro Helmet - M - Matte Black PLP|EMTB Optimised they are the same unitsThe Dropframe Pro Helmet is a game changing, open face 3 4 enduro helmet. It features Mips, the BOA Fit System for class leading fit and security, increased ventilation, plus an Ionic+ liner and cheek pads to optimise fit. With its increased coverage for the ears, jaw and back of the head, this MTB helmet provides the most complete coverage they offer in an open face helmet. Maximum coverage, open face mountain bike helmet Features MIPS added