2015 FrogFit Technology® Crank

The special design of the FrogFit Technology® crank ensures easy and efficient pedalling.


Children's hips are smaller and putting them on a bike with adults size cranks will lead to the feet being further apart that the hips - a very unnatural position to ride on, putting strain on the growing muscles and joints. Research showed the need for a reduction in the hip-pedal triangle. Therefore, we introduced the reduced q-factor in Frog patented shortened cranks for more efficient pedaling (20% increase of efficiency in the lab).