**The Royal Assassin Derby with the straight-edge profile is now $100 OFF. Save on one of our most trusted wheels before this version is gone. Once it's sold out, it won't be restocked. *Discount codes are not applicable to this product. Royal Assassin – 59 × 38 mm Roller Derby Wheel Why Derby Skaters Choose It The urethane is more flexible than most derby wheels on the market. You don’t need to overthink hardness—92 A works reliably on nearly all indoor derby surfaces. This wheel offers a smooth roll combined with exceptional grip, ideal for sharp cornering and acceleration. Durability is unmatched, lasts at least twice as long as comparable derby wheels. This is the preferred choice of numerous pro roller derby skaters, trusted in high‑performance competition and training. Features & Performance Premium Gravity‑Poured Urethane Developed by urethane specialist Scott Corey, this hot-cast formula delivers outstanding rebound, grip, and long-lasting performance. Hand‑poured for consistent density and performance. Precision Aircraft‑Grade Aluminium Hubs Constructed from 6061 aluminium, these hubs are lightweight yet rigid, with a tight bearing seat for maximum responsiveness. Skater‑Informed Shape & Grooves A refined lip profile and a double-cut groove pattern are designed with input from elite skaters, minimizing break-in time and boosting control from the first session. Limited Small‑Batch Production Handcrafted in small batches to ensure top quality. Technical Specs Attribute Details Size 59 × 38 mm (derby-specific) Hardness 85A, 92A, 96A, 98A Set Size 8 wheels Pro Tips: Choosing the Right Wheel Unsure about hardness? The 92 A offers a great balance of grip and roll on most indoor derby floors. Seeking maximum longevity? These wheels typically last 2–3 times longer than standard options. Want a proven performer? Top-level athletes prefer this wheel for its grip, control, and long-term reliability. Artisan Details & Authenticity Natural aesthetic variations, such as tiny air bubbles, streaks, or light hub marks, are part of the handcrafted process. They don’t impact performance and in fact highlight the artisanal quality of each wheel. Usage Focus Crafted for indoor derby training and competition, especially on polished wood and smooth sport‑court surfaces, supports tight corner control, fast acceleration, and stability. The natural-colored urethane may yellow when exposed to sunlight. To maintain its original look, avoid direct sun exposure. The wheel’s lip may appear slightly more yellow than the rest due to the manufacturing process—this is normal. These high-performance wheels are not designed for drag-to-stop use. Flat spotting from excessive dragging or hub damage from incorrect bearing installation is not covered under warranty. Flat spotting is a characteristic of urethane under excessive friction and can occur on all roller skate wheels.
