MX801 classic hubs is the solution for strong, stiff and durable MTB custom builds. MX801Classic hubs feature the ID360 freewheel system for perfect torque transfer and high durability.Specifications:- Axle Material: Aluminum- Front And Rear Bodies: Aluminum- Instant Drive 360- Qrm Auto- Axles: Front 15x110 Boost , Rear 12x148 Boost- Rear Axle: 12mm Thru Axle, Convertible To Quick Release With Optional Adapters- Maximum Spoke Width: 2,4mm- Freewheel: Shimano Hg9, Xd Or Micro Spline- Rear Axle: 12x148 Boost Thru Axle- Front Axle: 15x110 Boost Thru Axle- Id360 Shimano Hg9 Alloy Freewheel Body ([Lv3780100])- Id360 Sram Xd Freewheel Body ([Lv3740100])- Id360 Shimano Micro Spline Alloy Freewheel Body ([Lv3990100])- Boost : Torque Caps ([Lv2650200])- Disc Standard : 6 Bolts Or Center Lock (R)- Hub Width : Boost Only (Front 110, Rear 148)- 28 & 32 Holes