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Aluminum Swingarm Harley-Davidson Dyna models 2000 -2017


  • Handcrafted 0-3” over stock extended aluminum swingarm
  • Shed 50% of unsprung weight vs OEM swingarm
  • Unequaled craftsmanship, engineering and weld quality
  • Replaceable, Aurora™ PTFE® lined spherical bearings pre-installed
  • 6061-T6 aluminum extrusion for dependable strength
  • DOM (Drawn Over Mandrel) seamless tubing axle
  • Includes 11/16” and 3/4” pivot shaft bushings
  • Choose from 3/4", 25mm, 1" or 28mm axle and blocks
  • Reversible billet aluminum axle adjusters and grade 5 steel adjuster bolts prevent axle slide (engraved with Brock's Performance logo)
  • Interior swingarm width measures 10 11/16" at the axle
  • DuPont™ Delrin® chain sliders
  • Natural brushed aluminum finish
  • Includes chain guard
  • Proudly made in the USA
  • Weighs only 15.20 lb. (see product details for more info)

Please note: When using the 3/4" axle in high power applications, we suggest a wheel configuration which utilizes a double row bearing (or outboard bearing) on the sprocket side.

Will not work with OEM rear brake assembly; aftermarket brake setup is required
(brake arm & mounting tab included)

*** Does not fit 2000 FXDX Superglide ***