Cross-country

Its 1998 ancestor was the motorcycle that allowed four-strokes to reclaim their rule over off-road racing. Twenty years later Yamaha reintroduces the WR450F, with a new frame and engine along with a host of changes and upgrades, such as the ability to tune the engine wirelessly via a smartphone app.

The Skizee is a powered tread that pushes skiers across the snow.

A Swedish researcher has claimed that modern cross-country skis work better without wax.

The Pronghorn mountain bike Anti-Power-Loss-System (APLS) better utilizes your when you need it most - uphill.

Automatically-adjusting cross-country ski bindings take the hassle out of steep inclines or declines.