Endless 100 Trinity Frame — a 4-wheel aluminum inline skate frame for urban and speed skating. Compatible with all TRINITY-mount boots. TRINITY 3-Point Mount. Powerslide's signature 3-point mounting system — stiffer, more stable, with direct power transfer. Compatible with every TRINITY boot in the Powerslide range, plus Iqon and PlayLife TRINITY models. 6061-T6 CNC Aluminum. CNC-machined 6061-T6 aluminum — heat-treated for stiffness, precision-cut for direct power transfer and zero flex. Frame specs: 303mm wheelbase · max 100mm / 110mm wheels · 4 wheels. Includes: 8mm Single-Sided Torx Axles · Mounting Bolts · Allen Tool · Bearing Spacers. Sold as a pair. Best for: Urban · Speed Skill level: Advance to Expert Compatibility: Powerslide TRINITY boots only (NOT compatible with 165/180 or UFS).