Durometer measures the hardness of skateboard wheels using the Shore A scale. It typically ranges from 75A (very soft) to 101A (very hard). Softer wheels absorb vibrations better and grip more on rough surfaces, while harder wheels slide easier and maintain speed on smooth terrain. The durometer rating is usually stamped on the wheel itself (e.g., "99A").

For technical street skating (ledges, rails, flip tricks), most skaters prefer 97A–101A wheels. Hard wheels slide predictably, resist flat-spotting during powerslides, and provide a responsive feel on smooth urban surfaces. Popular street wheels include Bones STF (99A–103A) and Spitfire Formula Four (99A–101A). If your local streets are rough, consider dropping to 92A–96A for better vibration damping.

While only 2 points apart, 101A wheels feel noticeably harder than 99A. On smooth skatepark concrete, 101A offers slightly more speed and a crisper pop. On average asphalt, 99A provides marginally better grip and a less harsh ride. Many pros lean toward 99A for its versatility across different street spots. For most riders, the difference is subtle — both are excellent hard-wheel options.

Yes, but with trade-offs. Soft wheels (78A–87A) grip extremely well on smooth concrete, which can feel "sticky" in bowls and on transitions — making it harder to break traction for slides. They also compress more during hard carving, which can reduce speed. For park skating, 95A–100A is generally preferred for the right balance of speed, grip, and slide capability.

Heavier riders compress wheels more, making a given durometer feel softer than it would for a lighter rider. As a rule of thumb: if you're over 180 lbs, consider going 1–3A harder than the standard recommendation. If you're under 130 lbs, you may prefer wheels 1–3A softer to achieve the same feel and grip characteristics.

For rough, cracked asphalt or pebbled streets, 75A–85A soft wheels are ideal. They absorb vibrations, roll over debris more smoothly, and provide superior grip on uneven surfaces. Pair soft wheels with a larger diameter (56–60mm) for maximum comfort and speed retention on rough terrain. Cruiser and longboard setups commonly use wheels in this range.

Most skateboard wheels use the Shore A scale (75A–101A). The Shore B scale measures harder materials and is roughly 20 points offset from Shore A. A wheel marked "80B" is approximately equivalent to "100A". Some brands (notably Bones) use the B scale for their hardest formulas. If you see a "B" rating, add ~20 to estimate the A-scale equivalent.

Generally, yes — softer wheels (85A–92A) are more forgiving for beginners. They offer better grip and shock absorption, making the ride feel smoother and more stable while learning to push and balance. As skills progress toward flip tricks and slides, transitioning to harder wheels (95A+) becomes beneficial. A 90A–93A wheel is an excellent starting point for most new skaters.

Wheels should be replaced when they develop flat spots, become significantly smaller from wear, or lose their shape. Hard wheels (99A+) may last 3–6 months of regular skating. Softer wheels can wear faster, especially if used for sliding. Rotate your wheels regularly (swap positions) to ensure even wear and extend their lifespan. Visible coning or diameter loss of 2–3mm is a clear sign it's time for a fresh set.

Wheel diameter and durometer work together: soft wheels (75A–87A) pair best with larger diameters (56–60mm+) for cruising and downhill. Medium wheels (88A–95A) work well at 54–56mm for all-around skating. Hard wheels (96A–101A) are typically paired with smaller diameters (50–54mm) for technical street tricks and lower weight. Matching size to durometer ensures optimal performance.