Stan’s No Tubes have entered the cyclocross market with a cyclocross disc specific rim – the Iron Cross. It allows the rider to run a clincher tyre with no inner tube using the same technique used / enjoyed by many MTB riders. By making the rim and tyre lip airtight the rider can remove the inner tube and reduce the risk of punctures without the increased cost and complexity of running tubular tyres. We’ve tested these with Vittoria XM and XG tyres successfully and know others work well too. With Novatec hubs and Sapim D-Light spokes they weigh 1552g a pair. Here’s a review from Road.cc for the pair we have lent Jo to test.