04/09/2026
BROCK’S PERFORMANCE AUSTRALIA🇦🇺. All-New ATTACK™ Swingarm Series for “Stupid Fast” Harley Davidson Baggers.
This is what happens when you take decades of sportbike drag racing development & point it at the traction problems unique to a Harley Davidson Bagger!
ATTACK™ Swingarms use an offset pivot design to raise the effective pivot point, increasing attack angle & anti-squat so the rear tire gets driven into the pavement under power instead of unloading as the bike squats.
On a sportbike, engineers can just raise the pivot point. On a Harley, the pivot runs straight through the transmission & primary structure, so that option doesn't exist. The ATTACK™ Swingarm builds the same geometry advantage directly into the arm itself, delivering better bite, better chassis attitude under acceleration, more usable traction whether you're running a stock engine, big-inch, turbo or nitrous.
Available lengths for Touring Models (09-26):
Short ATTACK (Stock to +4"): Stronger acceleration with a responsive chassis, built for stock & short wheelbase drag racing, roll-ons, twisties, land-speed runs.
Long ATTACK (+4" to +8"): The purpose-built long-bike solution for serious power.
Built in USA🇺🇸 from 6061-T6 aluminium, handcrafted from proprietary extrusion. Short ATTACK™ has a 36% weight savings over OEM. The Long ATTACK™ with a 39% weight savings over OEM. Finished in burnished raw aluminium or black powder coating. Short can use OEM Brake or Upgrade to Radial Calliper, yet the Long Requires an Upgrade to Radial Calliper, brackets & calliper available.
Less weight. More traction. A chassis that works with you under power instead of against you. That's the ATTACK™ Swingarm.
Contact Custom Motorcycle Addiction Brock’s Performance Australia🇦🇺 with your request via our contact form: https://custommotorcycleaddiction.com.au/brocks-performance-australia/
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