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Clutch kit harnesses the centrifugal force of spinning weights to increase the clutch capacity as engine speed increases.
Mechanism applies increasing pressure to the stock clutch pressure plate as RPM rises
High torque-handling capabilities without increasing clutch lever effort at idle
Variable pressure clutch also provides smoother clutch disengagement at lower speed
Kit fits behind most stock derby covers with no modifications
See installation manual for additional accessory derby cover fitment information
Fits ’99-later Evolution® 1340 and Twin Cam-equipped models. Will not fit ’16-later Touring and Trike models, ’15-later FLHTCUL or FLHTKL models or ’07-later Touring or Trike models equipped with Narrow-Profile Outer Primary Cover P/N 25700385 or 25700438. Will not fit ’13-later CVO™ models with hydraulic actuated clutch, ’16-later FXDLS, FLSS and FLSTFBSS or ’14-later Touring and Trike models equipped with Screamin’ Eagle® A&S Clutch Kit P/N 37000026. Derby Covers P/N 25001-03, 25441-04A, 25770-99, 25331-10, 25339-10, 25700250 and 25700062 require Spacer Kit P/N 37000123. Does not fit Derby Covers P/N 25347-02 or 25345-01.
We can no longer sell outside the U.S. We can no longer sell to commercial repair shops outside our market area, Freight Forwarders, or to anyone that we suspect resells or buys in quantity. We don't sell engines, frames, crankcases or batteries online.