Bones - Omega X-Forumla 99a Wheels (60mm) LDS25 55mm tall for optimal performance

55mm tall for optimal performance and wheel clearance with wheels 56mm and under

Flexible cupsole construction

Grade 8 Kingpin

Geoflex outsole

Chainstitch embroidery at right outseam

Bones - Omega X-Forumla 99a Wheels (60mm) LDS25 55mm tall for optimal performanceBones Wheel Shape Guide < Click it. It's big and wide. 60mm x 40mm About X Formula About: The amazing new X Formula (XF) is another industry leading innovation from the BONES WHEELS factory. X Formula rolls over rough terrain like softer wheels do, but slides much like a harder wheel will. Speed: X Formula is extremely fast because it has a super high rebound. X Formula rolls much smoother and faster on all terrains because it absorbs vibration and