Taking the next step in performance with race level enhanced geometry, high performance hydraulic disc brakes, double butted alloy frame, disc specific rims, lightweight lockout suspension forks and race inspired Microshift gearing system with a custom front chain guide.

The evolution of the ByK Mountain series bikes takes on new challenges and exciting adventures.
Committed to the ultimate off road potential, the 540MTBD is a machine that inspires fun and adventure.

Like the entire ByK Range, this is not a scaled down adult bike. Every single component has been considered, tested, custom sized and tuned to suit our rider's profile. Our unique ergonomic riding position and geometry offer a range of riding positions and adjustability unexpected at this size.

Performance:
We have weighed every single component, measured to a millimeter the geometry and ergonomics and tested on every trail we could find. Our long list of premium components is outstanding.

Taking the next step in performance with race level enhanced geometry, high performance hydraulic disc brakes, double butted alloy frame, disc specific rims, lightweight lockout suspension forks and race inspired Shimano 1 x gearing system with a custom front chain guide.

We have strengthened our wheels, used extra grip lightweight tyres, an ergonomic saddle and customised our unique V bars for off-road fun.

Everything has been considered to make this bike perform in a class of its own. The ByK 540MTBD re-defines MTB fun for kids.