Expedition touring bikes
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Expedition touring bicyles are touring bicycles designed specifically for touring in remote parts of the world on all types of poor road conditions. There is no specific definition of such bikes, it is generally applied to the most heavyweight types of touring bikes. They are sometimes referred to as trekking bikes in the Netherlands and Germany. A typical expedition touring bike would be made of relatively heavy duty steel tubing, with 26 inch wheels, and componentry chosen for robustness and ease of maintenance. The main design criteria for such a bike would be to allow all day comfort on the bike, have good handling characteristics under heavy load, and be capable of running smoothly on good roads, but also on the roughest of tracks. Some bike tourers have made their own expedition bikes, by building up on mountain bike frames. The key difference between a mountain bike and an expedition touring bike would be the addition of racks for panniers, and tougher, all purpose tyres. They will have a longer wheelbase (i.e distance between the hubs) to allow for more comfortable crusing, at the expense of the manoeverability of an mtb. Most tourers also prefer heavier, stronger wheels than would be normal on a production mountain bike.
It is small, specialist market, so only a small number of bikes are sold under this description, few if any by the biggest manufacturers. Examples are the EXP and Raven from Thorn Cycles, and the Roberts Roughstuff, both made in the UK.
