* Complete crankset with single or dual ring chainguide included * System-1: dual 5mm Fatty plates mount to and rotate with crank (for elevated or large clearance standard stay frames), single ring only * System-2: stationary inner BB mount guide plate with cut out for chainstay, outer plate mounts to and rotates with crank (standard chainstays), single ring only * System-3: rotating outer bashguard with internal delrin guide plates and rollers mounted to an aluminum 2-arm (IS) ISCG mount boomerang (59.2mm-BCD 3-tab direct-mount bottom bracket shell, can be adapted to standard BB-cup mounting with MP-430: sold separately), single ring only * LRP: 5mm-Fatty outer plate attaches to and rotates with crank providing dual (or triple) ring security. Choose 34 tooth or 38 tooth maximum * Includes black powder-coated, welded 4130 CrMo arms, 4) sealed bearing 68/73mm bottom bracket (chainrings sold separately)
