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Currently in development is the Duke 29er. It’s a pivotless full-susser Rohloff belt-drive frame which is based on the existing Duke full-susser but tweaked and modified to work around the larger wheels.

Belt-drive frames were a popular attraction at the show and there were many approaches to the issue of splitting the driveside seat stay to allow for the belt to be passed through – the DEAN solution is one of the most elegant on show we reckon.

Other features include a 44mm headtube allowing for a choice of forks from standard 11/8in to tapered steerer tube forks. The rear shock is controlled via two short slim aluminium links to allow the designers to tune shock path, and instead of a main pivot there is flex built into the skinny chainstays, reducing the weight.