Endless Arc ES UFS Frame — a precision-machined 5-wheel UFS frame for larger feet (size 44+), built for expressive flatland, slalom and freestyle skating with precise edge transitions and swivel moves. Designed around Seba CJ, CJ2, SX and SX2 boots.

UFS Mount (UFS+ compliant). Direct UFS mounting with front-to-back pivot adjustment (0 to -3mm) and 81mm pivot spacing. A built-in forward tilt sets the optimal heel raise for Seba CJ/CJ2/SX/SX2 boots. (THEM 909 users may need to swap their stock frame bolts.)

6061-T6 CNC Aluminum. CNC-machined from 6061-T6 aluminum with an exceptionally rigid structure — a higher-performing alternative to 5x80 setups, tuned for responsiveness, speed, acceleration and precise control of movement.

Multi-setup wheeling. Runs 80mm or 84mm outer wheels with 3x 76mm inner wheels for wide wheel compatibility and performance tuning. For the best feel don't mix round and bullet wheel profiles — matched wheel sets are available in-store.

Arc Rocker. Ships with Endless' Arc Rocker geometry; even more rocker is possible when running 80mm wheels with the optional Arc Deluxe Rocker Axles (silver).

Frame specs: 324mm wheelbase · 81mm pivot spacing · UFS / UFS+ mount · 5-wheel (80 or 84mm outer + 76mm inner) · Arc Rocker · pivot adjustment 0 to -3mm · 369 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 · Urban
• Skill level: Intermediate to Advanced
• Boot sizes: 44–47 (for size 38–43, choose the standard Endless Arc UFS frame)

Compatibility: UFS / UFS+ boots — designed around Seba CJ, CJ2, SX and SX2. Choose your 5-wheel frame by boot size.