Makers of "world's lightest dirt bike" announce its successor, the Mountain Moto FX5

12-14-2013 • http://www.gizmag.com, By Ben Coxworth

Incorporating both motorcycle and mountain bike parts, it tipped the scales at just 57 kg (125 lb). This week, FX Bikes unveiled its burlier but still-lightweight descendant, the Mountain Moto FX5.

In order to beef up its performance and durability, the only mountain bike component left on the FX5 is its Truvativ downhill handlebars. Most of its other parts are designed for trials, motocross or enduro racing.

It has the same seat/handlebar/footpeg triangle as the heavier (99.5 kg) KTM 350 Freeride motorbike, although its ground clearance has been lowered to that of a trials bike. Power is provided by a 4-stroke, single-cylinder, 125cc YX or Daytona-Japan engine, although upgrades up to 190cc are possible. Both manual and automatic clutches will be available.