Brock's Performance Burnished Aluminum Extended Swingarm Axle Harley FXR 82-00

BRAND NEW

PART # 604309

 PLEASE MESSAGE US WITH WHAT AXLE SIZE AND PIVOT SPACER SIZE YOU ARE NEEDING.

ITEM MAY HAVE A LEAD TIME. MESSAGE US BEFORE PURCHASING.

FITS: 1982 - 2000 Harley FXR models


Handcrafted 6061-T6 aluminum extended swingarm
Proprietary custom extrusion made exclusively for Brock's Performance
Extends wheelbase from stock to 3 inches over
3-position shock mounts allow flexibility in ride height (stock, -1”, -2”)
Designed for use in high-power, high-torque applications
Includes centerless ground 4130 Chromoly axle
(choose from 3/4”, 25mm, 1”, or 28mm axles)
Reversible billet aluminum axle adjusters for easy wheel adjustments
Includes adjustable brake bar for undermount (aftermarket) brake caliper
PTFE® lined spherical bearings from Worldwide Bearings preinstalled
Includes bushings to use the OEM pivot shaft
(choose from 5/8” or 3/4” bushing sets)
Interior swingarm width measures 10 1/4” at the axle
The total weight of swingarm, hardware, and axle is 14.32 lb. (6.50 kg)
Designed, machined, and assembled in the USA
Burnished raw aluminum finish



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 Performance FXR 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 FXR, 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 are standard allowing for stock height, -1”, and -2” mounting positions. Speaking of flexibility, check out the adjustable brake bar that allows mounting of many different aftermarket brake calipers.

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.



Performance FXR Swingarm Weight:

Swingarm w/ Bearings: 10.70 lb. (4.85 kg)
Axle w/ Nuts & Blocks:
3/4” – 2.80 lb. (1.27 kg)
25mm - 3.15 lb. (1.43 kg)
1” - 3.20 lb. (1.45 kg)
28mm - 3.40 lb. (1.54 kg)
Pivot Bushings:
5/8” - 0.50 lb. (0.23 kg)
3/4” - 0.43 lb. (0.20 kg)
Adjustable Brake Bar w/ Hardware: 0.39 lb. (0.18 kg)
Total Swingarm Weight with 3/4” Axle & Pivot Bushings: 14.32 lb. (6.50 kg)