The TRASK Assault Swing Arm is precision machined from billet T6061 aluminum and features a race-inspired design intended to increase rigidity while reducing weight. Pocketed joints are engineered for strength without welded construction, while the 100% bolt-on factory replacement design supports a seamless installation.
This swing arm includes a titanium axle and hardware for added strength and weight savings, along with new spherical bearings. The supplied bracket accepts the OEM brake caliper. It arrives unassembled in a raw machined finish, allowing for custom finishing options. When custom finishing, TRASK recommends anodizing and advises caution when powder coating mating surfaces.
The TRASK Assault Swing Arm, manufacturer part number TM-3220, fits the 2024 Harley-Davidson FXBR Breakout 117; 2018 and 2020 Harley-Davidson FLDE Deluxe 107; 2020 Harley-Davidson FLHCS Heritage Classic 114; 2018 Harley-Davidson FLFB Fat Boy 107; 2021 Harley-Davidson FXST Softail Standard 107; 2019 Harley-Davidson FXFBS Fat Bob 114; 2022 Harley-Davidson FXBBS Street Bob 114; and 2018 and 2020 Harley-Davidson FLFBS Fat Boy 114. If converting to a chain drive system, fit a custom chain slider to help prevent chain wear on the swing arm. Distributor part number: not provided.
Features:
- Billet T6061 aluminum construction: Precision machined for a race-inspired design that increases rigidity while reducing weight.
- Pocketed joints: Engineered for maximum strength while eliminating the need for welding.
- Bolt-on factory replacement: Designed for seamless installation as a 100% bolt-on replacement.
- Titanium axle and hardware: Included for strength and weight savings.
- OEM brake caliper compatibility: Accepts the OEM brake caliper with the supplied bracket.
- Spherical bearings: Includes new spherical bearings.
- Raw machined finish: Supplied unassembled to allow for custom finishing options.
- Custom finishing guidance: Anodizing is recommended, and caution is advised when powder coating mating surfaces.
- Chain drive conversion guidance: A custom chain slider should be fitted to help prevent chain wear on the swing arm.
- Vehicle fitment: Fits select Harley-Davidson Breakout, Deluxe, Heritage Classic, Fat Boy, Softail Standard, Fat Bob and Street Bob models from 2018 through 2024.
Fitment:
2018 Harley-Davidson FLDE Deluxe 107
2018 Harley-Davidson FLFB Fat Boy 107
2018 Harley-Davidson FLFBS Fat Boy 114
2018 Harley-Davidson FLHC Heritage Classic 107
2018 Harley-Davidson FLHCS Heritage Classic 114
2018 Harley-Davidson FLSB Sport Glide 107
2018 Harley-Davidson FLSL Softail Slim 107
2018 Harley-Davidson FXBB Street Bob 107
2018 Harley-Davidson FXBR Breakout 107
2018 Harley-Davidson FXBRS Breakout 114
2018 Harley-Davidson FXFB Fat Bob 107
2018 Harley-Davidson FXFBS Fat Bob 114
2018 Harley-Davidson FXLR Low Rider 107
2019 Harley-Davidson FLDE Deluxe 107
2019 Harley-Davidson FLFB Fat Boy 107
2019 Harley-Davidson FLFBS Fat Boy 114
2019 Harley-Davidson FLHC Heritage Classic 107
2019 Harley-Davidson FLHCS Heritage Classic 114
2019 Harley-Davidson FLSB Sport Glide 107
2019 Harley-Davidson FLSL Softail Slim 107
2019 Harley-Davidson FXBB Street Bob 107
2019 Harley-Davidson FXBR Breakout 107
2019 Harley-Davidson FXBRS Breakout 114
2019 Harley-Davidson FXDRS FXDR 114
2019 Harley-Davidson FXFB Fat Bob 107
2019 Harley-Davidson FXFBS Fat Bob 114
2019 Harley-Davidson FXLR Low Rider 107
2020 Harley-Davidson FLDE Deluxe 107
2020 Harley-Davidson FLFBS Fat Boy 114
2020 Harley-Davidson FLHC Heritage Classic 107
2020 Harley-Davidson FLHCS Heritage Classic 114
2020 Harley-Davidson FLSB Sport Glide 107
2020 Harley-Davidson FLSL Softail Slim 107
2020 Harley-Davidson FXBB Street Bob 107
2020 Harley-Davidson FXBRS Breakout 114
2020 Harley-Davidson FXDRS FXDR 114
2020 Harley-Davidson FXFBS Fat Bob 114
2020 Harley-Davidson FXLR Low Rider 107
2020 Harley-Davidson FXLRS Low Rider S 114
2020 Harley-Davidson FXST Softail Standard 107
2021 Harley-Davidson FLFBS Fat Boy 114
2021 Harley-Davidson FLHC Heritage Classic 107
2021 Harley-Davidson FLHCS Heritage Classic 114
2021 Harley-Davidson FLSB Sport Glide 107
2021 Harley-Davidson FLSL Softail Slim 107
2021 Harley-Davidson FXBBS Street Bob 114
2021 Harley-Davidson FXFBS Fat Bob 114
2021 Harley-Davidson FXLRS Low Rider S 114
2021 Harley-Davidson FXST Softail Standard 107
2022 Harley-Davidson FLFBS Fat Boy 114
2022 Harley-Davidson FLHCS Heritage Classic 114
2022 Harley-Davidson FXBBS Street Bob 114
2022 Harley-Davidson FXLRS Low Rider S 117
2022 Harley-Davidson FXLRST Low Rider ST 117
2022 Harley-Davidson FXRST Low Rider El Diablo 117
2022 Harley-Davidson FXST Softail Standard 107
2022 Harley-Davidson Softail Street Bob FXBB
2023 Harley-Davidson FLFBS Fat Boy 114
2023 Harley-Davidson FLHCS Heritage Classic 114
2023 Harley-Davidson FXBBS Street Bob 114
2023 Harley-Davidson FXBR Breakout 117
2023 Harley-Davidson FXFBS Fat Bob 114
2023 Harley-Davidson FXLRS Low Rider S 117
2023 Harley-Davidson FXLRST Low Rider ST 117
2023 Harley-Davidson FXST Softail Standard 107
2024 Harley-Davidson FLFBS Fat Boy 114
2024 Harley-Davidson FLHCS Heritage Classic 114
2024 Harley-Davidson FXBBS Street Bob 114
2024 Harley-Davidson FXBR Breakout 117
2024 Harley-Davidson FXLRS Low Rider S 117
2024 Harley-Davidson FXLRST Low Rider ST 117
2024 Harley-Davidson FXST Softail Standard 107
2025 Harley-Davidson FXBR Breakout 117
2025 Harley-Davidson FXLRS Low Rider S 117
2025 Harley-Davidson FXLRST Low Rider ST 117