Seismic Alpha 75.5mm wheels are made for going fast. The wheel has a high momentum for reaching the top speeds and is made of their fastest urethane. The s-shaped edge profile of the wheel supports the lip which results in snappy technical pre drifts and the wheels actually have concave. This concave preloads the lips of the wheel which result in a more control thus a more predictable slide. Poured around Seismic their specially designed core which lets the urethane bond ‘mechanically’ with the core. These are made from 85D fiber-reinforced thermoplastic core and are super strong while made made lighter by hollowing out parts which are aesthetically pleasing as well. Available in three different durometers so you can pick yours for every road condition or personal taste.
• 74A Plum (Chase Hiller pro signature wheel): Plush, velvety roll with extra edge hold, even on rough roads. Aggressive yet smooth slide with faster braking.
• 76A Mango: Vice-like grip and very snappy directional slide, with plenty of slowdown power. Ideal for aggressive racing.
• 78A Mint: Very stiff edges that give loads of grip with a friendly slide and crisp hookup. Ideal for smooth roads and lighter riders.
Diameter: 75.5 mm
Durometer: 74a (plum), 76a (mango), 77a (blue), 78a (mint)
Width: 62.5 mm
Contact patch: 62 mm
Core position: Offset
Edge Shape: Straight-cut inner & Square outer edge