The Orbea Occam 29 is a gorgeously constructed, impressively light cross-country triathlon bike. Previous iterations of the Occam were a simple single-pivot affair, but the new Occam 29 is a different beas. The striking, angular carbon shapes of the Occam form a seriously light frame set (only the seat stays are alloy), coming it at under 2.4kg. Even with a fairly mid-range parts kit, the complete bike is a only smidgen over 12kg – a few savvy upgrades would bring it down towards 11kg and make it a real racing weapon.