The 'Race' in the name of these hefty Nukeproof wheels definitely refers to downhill rather than cross-country competition. Axle switching isn’t easy but they are sturdy.
The broad rim is based on Sun Ringlé’s MTX family, with a 23mm internal width giving you free rein on rubber size. Thirty-two plain gauge DT spokes spread impact loads well, and we’ve not had any issues despite hammering and hucking them.
The 20mm hub can convert to 15mm and quick-release while the 15mm hub will only convert to QR. Bearing life can be variable, so make sure you give them plenty of love and care. They’re not tubeless-ready (or taped) either, although you do get spare spokes. If bright yellow scares you, they come in silver and black too.