Harley Fatboy Handlebars
Steel Guru builds custom handlebars for the Harley-Davidson Fat Boy, 2004 through the Fat Boy 114. Four bars in the range fit the Fat Boy: the Steel Beast, the Steel Lowline, the Steel Viper and the Steel Fifty X. Set your rise, bar diameter and finish, or design your own from scratch. Hand-welded from 3 mm S235 steel to your exact year. Guaranteed bolt-on fit, made in 5 days, global delivery.
Bars that fit your Fat Boy
Full Fat Boy fitment
| Model | Years | Bars that fit |
|---|---|---|
| Fat Boy | 2004-2024 | Steel Lowline, Steel Viper, Steel Beast, Steel Fifty X |
| Fat Boy Lo | 2010-2017 | Steel Lowline, Steel Viper, Steel Beast, Steel Fifty X |
| Fat Boy S | 2016-2017 | Steel Lowline, Steel Viper, Steel Beast, Steel Fifty X |
| Fat Boy 114 | 2018-2024 | Steel Lowline, Steel Viper, Steel Beast, Steel Fifty X |
What handlebars fit a Fat Boy?
Four Steel Guru bars fit the Fat Boy across 2004-2024, covering the Fat Boy, Fat Boy Lo, Fat Boy S and Fat Boy 114: the Steel Beast, the Steel Lowline, the Steel Viper and the Steel Fifty X. Each is welded to the exact year you specify.
Does the Fat Boy 114 need a different bar than older Fat Boys?
All four bars fit both the older Twin Cam Fat Boys and the Milwaukee-Eight Fat Boy 114. Because setups differ between generations, every bar is built against the exact year you specify, which is how those differences are handled before anything is welded.
Can I get a taller rise on a Fat Boy?
Yes: rise, width, pullback and diameter are all set at order time. If you want a spec that sits outside the standard range, use the Design Your Own configurator and Steel Guru will confirm the fit against your year before the bar is built.



