XRay XB4 2021 Spares & Hop-Up Parts

Keep your XRAY XB4 2021 running at its best with our comprehensive range of genuine spares and proven hop-ups. From suspension arms, hubs and shock towers to diffs, spur gears, driveshafts, bearings and hardware, you’ll find the parts you break most and the items that boost performance and reliability. We also stock popular Whitz RC upgrades, including titanium and brass options, so you can tune weight, strength and response to suit your track and driving style.

Not sure which part fits? Check your XB4 2021 manual for the exact part number, then use our filters to quickly locate the correct component. Many consumables are shared across model years, but some fitments are 2021-specific—if you’re unsure, our friendly, knowledgeable team is happy to help with expert advice.

Wheelspin Models holds large UK stocks for fast dispatch, with next-day delivery options available at checkout. Add essentials to your pit bag—arms, rod ends, turnbuckles, wheel hexes, spur gears, diff oils and spare tyres—so you’re ready for race day. Browse the wider XRay range for more compatible parts and accessories.