Yamaha WR-F 450 2-TRAC 2004 — Specifications

Imagine a motorcycle pulling on both wheels like a wild horse pulling on its reins. This isn’t a new concept in engineers’ design studios, but in 2004, Yamaha, in partnership with Öhlins, dared to do it. They chose as their test subject a beast already formidable, the WR-F 450, to make it the first production motorcycle with all-wheel drive. The goal was clear: to tame the untamable, whether in quicksand or the treacherous roots of a woodland. An ambition that finds its absolute meaning in the hell of African rallies.

Externally, the transformation is subtle, almost furtive. A more robust front hub, two hoses, and a box near the output sprocket. That’s all. But beneath this apparent simplicity lies precision mechanics. The principle? An oil pump, operated by the gearbox, sends fluid under pressure to a small hydraulic motor housed in the front hub. Result: up to 30% of the power of the 58 horsepower single-cylinder engine can be transmitted to the front wheel. The trick is that the 2-TRAC system only intervenes when needed, when the rear wheel begins to lose traction. It then acts as an invisible guide.

On the handlebars, the difference with a standard WR-F is palpable. On slippery climbs or broken turns, the motorcycle pulls itself with a disconcerting authority. It seems to carry you, reducing the struggle for directional control. Controlled sliding becomes child's play, offering a feeling of unprecedented safety on this type of machine. Of course, not everything is perfect. When the front wheel pulls, you feel a slight stiffness added to the 46 mm Öhlins fork, as if the system added a mechanical constraint. But it’s a small price to pay for such an advancement in traction.

With its 126 kg dry weight and 10-liter tank, it’s not a relaxed trail bike. It’s a pure performance tool, designed for the demanding rider seeking absolute efficiency in technical off-road conditions. Its price, around 12,200 euros at the time, placed it in a very high-end niche. Facing competitors like a KTM EXC of the time, lighter and more agile, the Yamaha didn’t play in the same league. It offered a radically different philosophy: mastery through technology rather than aggression alone.

The WR-F 450 2-TRAC remains a mechanical museum piece, a bold experiment that proved the viability of all-wheel drive on a lightweight motorcycle. It did not revolutionize the market, but it opened a path that others are exploring today. It’s the motorcycle of the rider who wants to be right even when the terrain is wrong. A production prototype that, despite its age, continues to fascinate with its engineering and unique character.