The Endless 90 UFS Frame is a precision machined, multi-setup frame designed specifically for UFS-compatible skates like the FR Skates UFR, THEM 909, Roces M12, or Seba CJ/SX. The 4x90 setup has the same Balanced Rocker featured on Endless 165 frames. The 4x84 setup features our Enhanced Flat micro-rocker that feels like the worn-in flat on your aggressive skates, but without feeling rockered. The two setups are fine-tuned for control and agility in urban environments and skate parks. Features Multiple setups: 4x90 - Balanced Rocker, all axles rockered down 4x84 - Enhanced Flat, all axles rockered up Note: for boots with adequate wheel clearance like the FR UFR or THEM 909, 4x90 Enhanced Flat (all axles rockered up) is possible for an ultra-low 90 mm setup Recommended for all skill levels Recommended for boot sizes 38 (245 mm foot length) and above Mounting: UFS Front-back pivot adjustment, 0 to -3 mm Flat mount (no forward tilt) Note: THEM 909 users may need to replace their stock frame bolts (see help article) Wheelbase: 277 mm (Balanced Rocker), 274 mm (Enhanced Flat) Brake compatibility: not recommended One frame set includes: 2 frames and axle hardware 8x Configuration/Rocker Axles 8x Axle Screws Slider Option: set of 2 removable low-friction engineering plastic sliders Includes 4x M3x6 stainless steel screws (qty. 8 total) for mounting Can mount to both sides of frame; outside mounting recommended for sole tricks CNC-machined from 6061-T6 aluminium Weight = 300 grams, without spacers and axles Slider weight = 50 grams