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Genuine replacement parts When it's time to refresh your trusty bike, Trek Genuine Replacement Parts have you covered. Details: - Replacement cartridge units for Bontrager Line Dropper seat posts - Be sure to use the correct size cartridge for the respective amount of travel - Regular maintenance will help maintain performance and extend the lifespan

Trek proprietary dropper post parts. - Replacement cartridge unit for Bontrager Line Elite Dropper seatposts - Regular maintenance will help maintain performance and extend lifespan - Refer to Service Manual for assembly instructions and service