Undercover Jay Yoon 58/92A/88A, 4-pack is an aggressive inline skate wheel concept developed around functional asymmetry, allowing skaters to fine-tune grind performance and rolling behaviour within a single setup. Designed for technical street and park skating, this wheel set reflects a clear understanding of how durometer placement directly affects control, durability, and consistency during grinds.

The 58 mm diameter provides a compact, responsive feel that supports fast spin-up, precise foot placement, and confident lock-ins on ledges and rails. What defines this wheel set is the mixed hardness configuration: two wheels feature an 88A durometer for grip, vibration damping, and controlled rolling, while the two 92A wheels are intended specifically for the inside position. The harder 92A urethane significantly reduces friction against ledges and coping, helping to minimize wheelbite during grinds and maintain speed and stability when locked in. This targeted hardness placement allows skaters to push harder into grinds without unwanted drag or hang-ups, while still benefiting from the smoother ride characteristics of the softer outer wheels.

Manufactured from Undercover’s high-performance polyurethane, the wheels offer strong abrasion resistance and consistent rebound, even under repeated impacts and lateral stress typical of aggressive skating. The core construction is optimized to support the urethane under heavy load, maintaining shape integrity and predictable performance throughout longer sessions.

The Undercover Jay Yoon 58/92A/88A wheel set is engineered for skaters who understand the importance of wheel positioning and want a setup that actively supports grinding technique, speed control, and durability in demanding urban environments.

More information about the Undercover brand can be found here:
http://undercover-wheels.com

More information about wheels in general here:
http://thisissoul.nl/inline-skate-wheels-info