New from A2Z, the Campagnolo single speed convertor kit does as its name suggests by turning a Campagnolo nine- or 10-speed freehub body into the mounting point for a single sprocket. 

The two 7.2mm and single 20mm black anodised and laser etched alloy spacers included in the kit allow the sprocket to be aligned accurately with the chainring to minimise the possibility of chain throw.

The kit contains 16t and 18t sprockets offering a choice of ratios. A similar single speed convertor for Shimano 8/9 speed free hubs is also available. Both are priced at £14.95 and may be obtained through www.windwave.co.uk .