The Endless 80 inline skating frame is a precision-machined, multi-setup frame designed specifically for the Seba/FR Skates FR series of freeride skates. Endless 80-Frame Introducing the Endless 80 Frame. This frame is a precision-machined, multi-setup frame designed specifically for the Seba/FR Skates FR series of freeride skates and other 165 mm compatible skates. NOTE: This frame requires a 165 raised heel boot. It IS NOT compatible with UFS or Powerslide Trinity boots. Features Features Endless 80 Frame The 80 features: Multiple setups: 4x80, 4x84, 3x100 Balanced Rocker for 4-wheel setups Flat configuration for 3x100 setup (bullet profile wheels only recommended) Recommended for all skill levels Recommended for boot sizes 40 (260 mm foot length) and below Mounting: 150, 165 mm Note: on Adapt skates our frames are not optimally centered. Not compatible with UFS boots (including FR Skates UFR) Wheelbase: 255 mm Brake compatibility: 4x80: Powerslide Urban Brake Size S (requires modification) (908058/1) 4x84: Powerslide Urban Brake Size M (908058/2) 3x100: Powerslide Urban Brake Size L (908058/3) One frame set includes 2 frames and 8 axles CNC-machined from 6061-T6 aluminum Weight = 258 grams, without spacers and axles Technical Specifications Technical Specification