Endless 100 Frame - 180 MountMultiple setups: 4x100, 3x110mm The Endless 100 Frame is a precision machined, multi-setup frame designed specifically for the Seba/FR Skates FR series of freeride skates, and other 180 mm compatible skates. Features:Multiple setups: 4x100, 3x110Balanced Rocker for 4-wheel setupFlat configuration for 3x110 setupCompatible with bullet profile wheels onlyRecommended for Intermediate and Advanced skill levelsRecommended for boot sizes 40 (260 mm foot length) and aboveMounting: 180 mm (*may not be compatible with all boots - ask if you don't see your skate listed)Boot must have fully threaded 3-hole or 7-hole mounting platesCompatible boots: FR1, FR2 (2016 and newer), FR3, Seba Trix 2, Seba High Light (Carbon, V2), Seba iGoR, Flying Eagle F6/F7, Flying Eagle Drift (1,2), Oxelo MF 500, Micro Delta F (carbon cuff); 7-hole mountsNot compatible: FRW, FRX, FR2 (2015), Seba GT, Seba Trix (5-hole), Powerslide Hardcore Evo, Rollerblade Metroblade, Micro MT Plus, Micro Delta (plastic cuff); 5-hole mounts; UFS boots (including FR Skates UFR)Not compatible without professional modification: Rollerblade Twister Edge, Rollerblade Maxxum Edge, Rollerblade RB 80/110/DA: forward-most hole in front mount must be drilled and tapped for an 8 mm mounting bolt (perform at your own risk)Wheelbase: 303 mmBrake compatibility (not recommended for use with brake):4x100: Powerslide Urban Brake Size L (908058/3)3x110: noneOne frame set includes: 2 frames and 8 axlesCNC-machined from 6061-T6 aluminumWeight = 320 grams, without spacers and axles 165, UFS, and Trinity Frame Comparison What's the difference between 165/180, UFS, and Trinity frames? There are three primary mounting standards when it comes to inline skate boots used for all types of skating other than speed skating. It's important to know which mounting interface your boot has so that you can choose the correct Endless frame. These three mounting types are not interchangeable with one another. In other words you cannot fit a Trinity frame to a UFS boot, nor can you fit a UFS frame to a 165 raised heel boot.