The Reactor 290 Comp Alloy certainly doesn't have the lightest frame, but it does have an integrated fun factor in rough terrain. Because that's what the Reactor was developed for. Especially in extremely steep terrain, this combination makes for smooth handling. The combination of a long top tube and low stack value will make you sit sporty on the All Mountain von Nukeproof. On climbs, the Nukeproof Fully lets you sweat. Other bikes 3399 Euro climb better. Especially for light riders under 70 kilos, the weight of this bike is enormous. With 15,6 kg, the ratio of rider to bike weight could be lighter. One should not forget: the geometry is the heart of a mountain bike. For 3399 Euro, Nukeproof provides more than the competitors in the same price range.