RaceFace have done well with this one: the length options (70, 90, 110, 120 and 130mm) give you plenty of choice, which is vital when setting up your perfect controls. We tested the 70mm stem, which has a great 'all mountain' feel.
With a six-degree rise, the stem gives you good control when tackling technical singletrack or tricky descents, and it provides you with a good body position for climbs without feeling cramped. It also has an interlocking U-shaped face plate to help eliminate stress concentrations, which is a bonus for carbon bar users. The whole of the stem is forged from 6061 aluminium, so it's strong and it has a reasonable weight of 170g.