Previous Next Color Overview On the basis of the 24mm axis PHANTOM crank, it is upgraded to the 29mm axis PHANTOM Pro. It has better rigidity and riding strength, as well as wider frame bottom bracket adaptability. It is the best way for you to upgrade your car. Best choice! Model MC-019 RRP ¥489(Crank) Specifications Material Al Alloy Technics Full CNC Spindle 29mm Q-factor 172mm Length 170mm/175mm Weight 562g(170mm Crank) BB Shell Frame Width 68/73mm BSA、89.5/92mm Press-Fit 、PF30、BB30 Rider Style XC/Trail/AM/DH Combination Method RRP :¥ 589 Chian line:51mm Weight:650g Split Type CrankChainringSR SpiderChainring Bolt Previous Next RRP :¥ 579 Chian line:49mm/52mm Weight:643g Direct Type CrankChainring Previous Next Technical Documentation Please find the installation and use instructions in the technical support, and check the technical documentation of the corresponding product Click here