Beacause they make your fork feel buttery smooth! Also, at RockShox, we call our trail and gravity fork team the Butter Wagon team, and they designed these little “cups”, hence: ButterCups.
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No, the bushings and upper tubes arrest all the degrees of freedom except “vertical”. ButterCups aid in absorbing vibrations along the vertical axis.
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Yes! For example, if upgrading an MY23 RockShox fork without ButterCups to the Charger 3 damper or DebonAir+ air spring with ButterCups, they may only exist on one side. Utilizing ButterCups on one...
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Yes! We recommend servicing your ButterCups during the 200-hour service; replacement isolator bumpers are included in the 200-hour service kit.
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ButterCups take up a bit more space in the lower legs and therefore are not compatible with previous generations of Pike and Lyrik. MY23 Pike, Lyrik, and ZEB without ButterCups can upgrade to inclu...
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Low amplitude, high-frequency vibrations are absorbed by ButterCups. We refer to that frequency as trail chatter; think of riding over horse hoove tracks in dried mud — that’s the kind of frequency...
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