Endless Arc 165 Frame — a precision-machined 5-wheel frame for 165mm boots, built for expressive flatland, slalom and freestyle skating with precise edge transitions and swivel moves. 165 / 180mm Mount. Standard raised-heel mounting for 165mm-compatible boots. Choose your 5-wheel frame by boot size. 6061-T6 CNC Aluminum. CNC-machined from 6061-T6 aluminum — 368 g per frame, with an exceptionally rigid structure for responsiveness, speed and acceleration. Multi-setup wheeling · Arc Rocker. Runs 80 or 84mm outer wheels with 3x 76mm inner wheels; ships with Arc Rocker, with more rocker possible using 80mm wheels and the optional Arc Deluxe Rocker Axles (silver). Don't mix round and bullet wheel profiles — matched sets available in-store. Frame specs: 316mm wheelbase · 165/180mm mount · 5-wheel (80 or 84mm outer + 76mm inner) · Arc Rocker · 368 g per frame (without axles and spacers) · not recommended for use with a brake. Includes: 2 Frames · Axle Hardware. Sold as a pair. Best for: Flatland · Freestyle · Slalom Skill level: Intermediate to Advanced Compatibility: 165 / 180mm raised-heel boots — NOT compatible with UFS or Powerslide Trinity.