(Honda/) The most technologically advanced 125cc four-stroke trail bikes are Honda’s CRF125F and CRF125F Big Wheel. What gives these bikes that title? They’re the only ones in this category ...

Bikes are measured by wheel size, and whilst various sites can give you a ballpark figure (around 12 inches for a four-year-old, but it can fall anywhere between 10-14 inches according to Halfords ...