For a powerful, versatile, shred-tastic ride, Haibike's SDURO AllMtn Pro is a perfect choice. Equipped with a RockShox Pike RC fork, and a Monarch Relay unit out back, the AllMtn is prepared to handle terrain of all kinds with the utmost grace. The Yamaha motor system perfectly marries smooth function with fun, unbridled power. It uses three sensors (torque sensor, speed sensor, and crank sensor) to create a wholly organic feeling of assist. It’s so smooth you might forget that you're going uphill. The Li-Ion 400Wh battery is compact, tidy, and charges easily on or off the bike. It also easily locks onto the frame for added peace of mind when you’ve got to step away.