The main differences between presta and schrader valves are their size and design. Presta valves are thinner and have a built-in valve cap, while schrader valves are wider and have a spring-loaded valve core. Presta valves are more commonly found on road bikes and high-performance bicycles, while schrader valves are typically used on mountain bikes and children's bikes. The choice between the two valves depends on your bike's rim compatibility and personal preference.
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