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Derailleurs
Derailleurs perform an essential part of the transmission of the gears, whilst pedalling leverage is applied to the gear lever which transfers the force by way of a cable to the front or rear derailleur, the derailleur moves and repositions the chain onto the desired sprockets, increasing or decreasing the resistance needed to be applied to the drive-chain.
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Shimano DYNA-SYS HIGH GRADE - GUIDE & TENSION PULLEY SET - RD-M780 / M781 / M786 / M773
$19.62 $17.84$19.62 $19.62