← ← Back to Bike Setup
WeightKEY IDEAXCO · CX
Bike Weight & Why It Matters
Static vs rotating mass for light young riders
Why it matters
Weight matters in cycling — and far more for a 12–40 kg child than for an adult. A 4 kg difference in bike weight can equal 20% of a small rider’s body weight. Imagine an adult racing with a 15 kg backpack: that’s the penalty a heavy bike puts on a child.
▸When it matters: Your first real upgrade decision
TECHNIQUE PHOTO / DIAGRAM
Go deeper with Premium
The full lesson library adds video breakdowns, printable drill cards and a coach-style progression tracker — currently under development.