What do you need in a great-handling, versatile hardtail? Well, it needs to be light and stiff for starters. That's why we began with mechanically formed, double-butted 6061 aluminium main frame tubes combined with a tapered head tube. Taken together they form a rigid backbone for the rest of the frame, carefully tailored with our Agile Ride Geometry to build a chassis that's responsive and accurate. Details, see? They're what make a CUBE.The clue's in the name: Reaction Pro. If you reckon that means we're really getting down to business with this bike, you'd be right. Our popular all-rounder hardtail retains all the features that have made the Reaction a go-to choice for keen riders, like a mechanically formed, double-butted 6061 frame with super-sleek luggage carrier and fender mounts for added versatility. Weekend warrior or weekday commuter (or both) “ the Reaction Pro can handle it all. Shimano SLX and XT 1x12 transmission components bring slick reliability and an enormous gear range to our indomitable mid-ranger, putting any climb within easy reach with a system that's easier to use than ever. We fitted a RockShox Recon air fork at the front for added comfort and control, as well as easy adjustability to suit any rider. And with our Size Split system there's bound to be a Reaction Pro that will fit you, whatever your height. This is a bike that's crying out for some fast singletrack action, but just as happy to take you to work: truly, a bike for all reasons.