What do you get when you combine 25 years of sportbike drag racing and innovation with a V-Twin industry cry for a swingarm that can handle the ever-increasing demands of ultra-powerful baggers? Introducing the West Coast Bagger Swingarm™, by Brock’s Performance. Leaning heavily on technology proven in the ‘stupid fast’ turbocharged sportbike area, our tubing, bracing, billet aluminum ends and 28mm Chromoly axle configuration routinely control 750 hp/350 ft-lb no wheelie bar missiles in 6 second/220MPH action.

Adapting this winning combination for smooth operation and long street life for your FL, we installed replaceable PTFE® lined spherical bearings from Worldwide Bearings at the pivot loops. Adding a bit of flexibility to the stance and chassis tunability in the rear, billet 3-position shock mounts (1/2-13 thread) are standard allowing for +2”, +1”, and stock height mounting positions. Speaking of flexibility, check out the billet bolt-on brake stay designed to function with the OEM brake hanger. In fact, Brock’s Performance Bagger swingarm is 100% bolt-on using your OEM rear wheel, spacers, and pulley or your favorite aftermarket replacement rear wheel.

Don’t forget the extra 3” length can be worth as much as 3 tenths improvement in the 1/4 mile. The bottom line, weighing in at a little over 1/2 the weight of the OEM swingarm and built to handle as much power as you can throw at it, moving/bent axles can now be a thing of the past, and you can look great and go faster too.

Note: West Coast Bagger Swingarms are not designed for off-road use.

American V-Twin Fitment Statement:
Although all attempts have been made to handcraft a product which will fit a wide variety of machines for a particular make/model/year, due to idiosyncrasies between particular years, available options, accessories, etc…, fitment cannot be 100% guaranteed. If upon assembly, fitment issues are discovered which are beyond the installer's ability or willingness to correct, then please feel free to contact our customer service department, alert Brock’s Performance of the fitment issue for your particular make/model, and obtain an RMA (Return Material Authorization). Brock’s Performance will accept unmodified swingarms, in 100% resalable condition for a full refund.

Please note, refunds are issued after product inspection at Brock’s Performance, and the customer is responsible for any/all shipping charges.

Attention: When spacing Bagger rear wheel, the overall width including spacers, brake hanger, etc. Must be: 10.875 in +.020in/-.000in / (276.22mm +.50mm/-.00mm)

Overall hub width is critical for proper operation/handling, product longevity, and rider safety. Brock’s Performance will not warranty any damaged swingarm found not to be in compliance with these spacing guidelines.

West Coast Bagger Swingarm Weight:

• Swingarm w/Bearings: 11.10 lb. (5.04 kg)
• Axle w/Nuts:
  • 25mm - 2.48 lb. (1.12 kg)
  • 28mm - 2.77 lb. (1.26 kg)
• Axle Blocks:
  • 25mm - 0.76 lb. (0.35 kg)
  • 28mm - 0.74 lb. (0.34 kg)
• Pivot Bushings: 0.43 lb. (0.20 kg)
• Brake Mount w/Screws: 0.55 lb. (0.25 kg)

25mm Total = 15.32 lb. (6.95 kg)

28mm Total = 15.59 lb. (7.07 kg)

OEM Harley-Davidson® Swingarm Weight: 22.78 lb. (10.33 kg)

OEM Harley-Davidson® Axle Weight: 3.55 lb. (1.61 kg)

Total = 26.33 lb. (11.94 kg)

Total Weight Savings = 11.01 lb. (4.99 kg) or 42% of OEM weight

H-D Model Fitment:

• Road King - FLHR (09-20)
• Road King Classic - FLHRC (09-20)
• Road King CVO - FLHRSE (13-14)
• Road King Special - FLHRXS (17-20)
• Electra Glide - FLHT (2009)
• Electra Glide Classic - FLHTC (09-13)
• Electra Glide Ultra Classic - FLHTCU (09-20)
• Electra Glide Ultra Classic Low - FLHTCUL (15-16)
• Electra Glide Ultra Classic CVO - FLHTCUSE (10-13)
• Ultra Limited - FLHTK (10-20)
• Ultra Limited Low - FLHTKL (15-20)
• Ultra Limited CVO - FLHTKSE (14-20)
• Electra Glide - FLHTP (2011)
• Street Glide - FLHX (09-20)
• Street Glide Special - FLHXS (14-20)
• Street Glide CVO - FLHXSE (10-20)
• Road Glide - FLTR (2009)
• Road Glide Ultra - FLTRU (11-20)
• Road Glide Ultra CVO - FLTRUSE (11-16)
• Road Glide Custom - FLTRX (10-20)
• Road Glide Special - FLTRXS (15-20)
• Road Glide Custom CVO - FLTRXSE (12-20)