RACOFSB 65D Urethane Fingerboard Wheels Pro Mini Shape (White) – 5.5x4.2mm with ABEC7 Bearings

These RACOFSB fingerboard wheels are a mini shape design, measuring 5.5mm in diameter and 4.2mm in width. Made from real urethane material with a 65D hardness, they provide solid grip while being softer than typical CNC wheels. Each wheel comes fitted with an ABEC7 bearing for smooth, quiet rolling. The white color and compact size make them a distinctive choice for fingerboarding. Note: because the contact patch is very small, these wheels are not ideal for extremely smooth surfaces.

Mini shape and size details

The wheels have a mini profile, which means they are shorter and narrower than most standard fingerboard wheels. The exact dimensions are 5.5mm x 4.2mm. This smaller footprint reduces the contact area with the riding surface, which can affect traction on certain finishes. The shape is intended for users who prefer a more agile feel or are looking for wheels that match smaller fingerboard setups.

Urethane material and 65D hardness

Real urethane is used to mold these wheels, giving them a balance of grip and durability. The 65D durometer rating places them on the softer end of the scale compared to many CNC-cut wheels. Softer wheels generally offer better grip on moderately rough or textured surfaces, but the small contact area means they may still slide on polished or very smooth tabletops. The material also helps absorb minor vibrations during rolls.

ABEC7 bearings for smooth rolling

Each wheel is pre-installed with an ABEC7 bearing. This rating indicates high precision, which translates to low friction and quiet operation. The bearings allow the wheels to spin freely with minimal noise, making them suitable for indoor fingerboarding sessions where silence is appreciated. The bearing is sealed to keep out dust and debris.

Surface compatibility guidance

Because the wheel's contact area is very small, these wheels perform best on surfaces that are not completely smooth. On rough or slightly textured surfaces, the urethane compound can grip effectively. On glass, polished wood, or other ultra-smooth finishes, the wheels may slip or skid. Riders should plan to use them on appropriate fingerboard parks or textured surfaces for optimal performance.

Technical specifications

Common questions about these wheels

• What is the size of these wheels? They are 5.5mm in diameter and 4.2mm in width, which is smaller than many standard fingerboard wheels.
• What type of bearings are included? ABEC7 bearings are pre-installed. They are known for smooth and silent spinning.
• Why is there a warning about smooth surfaces? The mini shape results in a very small contact patch, so on very smooth surfaces (like glass), the wheels may not grip well and can slide.
• Are these wheels softer than typical CNC wheels? Yes, at 65D they are softer than most CNC wheels, which are often harder. Softer urethane helps with grip on suitable surfaces.