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The Kéo standard was developed in order to minimize the weight and size of the cleat/pedal ensemble
while simultaneously reducing tire burping at the bead
comfortable and well-ventilated helmet
Available in popular road widths including 25mm
Park Tool CC-4.2 Chain Checker GSULT The Kéo standard was developedA worn bicycle chain causes poor shifting performance and can actually wear out drivetrain components, causing more expensive problems. The Park Tool CC 4. 2 Chain Checker is a drop in style gauge that measures bicycle chain wear. The laser cut CC 4. 2 accurately measures a long section of chain and strategically comes in contact with the chain in three places, quickly and easily taking the guesswork out of determining when chain replacement is