Cyclocross bike wheels have a hard time of it. They need to be light enough for stop-start acceleration, yet tough enough to take the hammering that invariably wet, muddy and rocky race courses puts in their path. This demanding feature requirement means that only the best wheels will ever make it onto the cyclocross circuit, and our highly-rated Planet X Pro Carbon 50 disc and canti cyclocross wheels have enjoyed a host of accolades in recent years. It also means that cyclocross wheelsets are also perfect for touring, commuting and road use; where a slightly sturdier, more resilient wheel build is required. The crossover to 29er mountain bike wheels is also there, the obvious rim size parallels meaning that inter-disciplinary compatibility is greater than ever.