Canyon rarely sells the H21 as an aftermarket standalone part, which is a shame. But if you can find a take-off from a Grail or a Neuron—or if you are lucky enough to spec it on a new build—do not hesitate. The H21 is a masterclass in functional minimalism. It is proof that the best components are the ones you forget you are holding, because they have become a seamless extension of your own skeleton.
The 9-degree sweep of the H21 creates a neutral, anatomical wrist position. It places your hands, shoulders, and elbows in a straight line when viewed from above. For long days in the saddle—think 100-mile gravel epics or 5-hour backcountry XC marathons—this geometry prevents hot spots and carpal tunnel flare-ups. The 5-degree up sweep adds a final ergonomic flourish, slightly lifting your thumbs to maintain a natural, relaxed grip. To truly understand the H21, you must ride it back-to-back against its peers. canyon h21 carbon flat bar
Because of the 9-degree sweep, standard lock-on grips fit perfectly. However, you may notice that the end of the bar has a specific inner diameter to accommodate bar-end plugs. Use expanding rubber plugs, not cheap plastic hammer-in caps, to avoid cracking the carbon edge. Canyon rarely sells the H21 as an aftermarket
In a world of electronic shifting and hydraulic disc brakes, the humble handlebar still matters. The Canyon H21 matters a great deal. It is, quite simply, one of the finest flat bars ever to grace a production bicycle. It is proof that the best components are