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DrivetrainPERFORMANCEXCO · CX
Gears, Chainring & Chain
Tailoring gearing to the rider and the course
Why it matters
The drivetrain turns effort into speed. Modern kids’ race bikes use a simple, reliable 1x setup (single front chainring). Matching the front cog to the rider and keeping the chain healthy makes shifting smooth and protects expensive parts.
▸When it matters: As strength and courses change
TECHNIQUE PHOTO / DIAGRAM
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The full lesson library adds video breakdowns, printable drill cards and a coach-style progression tracker — currently under development.