300 tire swingarm conversion kit for 2018-up milwaukee eight FLFBS fat boy’s and FXBRS breakout’s


Our new fat tire swingarm conversion kit will enable you to mount a 300 tire on your stock 2018-up Milwaukee Eight FLFBS Fat Boy’s and FXBRS Breakout’s without doing any modifications to the frame and keeping the original Harley belt!

It can fit up to 10.5” wide rims. Thanks to this innovative swingarm kit you will be able to mount a super-wide rear tire on your Harley-Davidson Milwaukee 8 Fat Boy or Breakout.

Please note that in order to keep stock width belt, rear wheel will need to be offset to the right 0.4″ (or 10mm).

To allow room for the wider swingarm a shorter exhaust system must be used (you can choose one of those we offer below) or the OEM exhaust manifold will need to be spaced out.

For the 300 tire you will need also a wider fender, since the stock Harley-Davidson one cannot fit. You can get our specific Steel Fender for 300 tire swingarm kit for 2018-up Milwaukee Eight Fat Boy’s and Breakout’s (sold separately) or fabricate one.

Kit includes raw swingarm, axles and all necessary components for the primary offset.

As special order items we can also machine rear 18×10.5 wheels with a very similar design of your OEM wheel, please see pictures at bottom of page.

Our 300 Tire Swingarm Kit for 2018-up Harley Milwaukee Eight’s work perfectly with our:

– Bat WheelsBat Pulleys and Bat Rotors
– Titan WheelsTitan Pulleys and Titan Rotors
– Cyclone WheelsCyclone Pulleys and Cyclone Rotors
– Cobra WheelsCobra Pulleys and Cobra Rotors
– Magnum WheelsMagnum Pulleys and Magnum Rotors
– Blank Wheels and Blank Pulleys

NOTE: kit does not include wheels, rear pulley, rotors, tires or rear fender, which are sold separately. Swingarm comes in raw finish and needs to be painted.

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Blog Comments

Hello I’m looking at purchasing a 2020 Harley Davidson, Lowrider S with the Milwaukee eight engine. I am wondering if this swing arm will fit it I would like to go with a 280 or 300 tire wheel. Thank you very much.

Thank you for your interest in Eurocomponents’ 300 tire swingarms for Milwaukee Eight Softail’s.

Sorry, but our wide tire swingarm kit can only fit M8 Fat Boy’s and Breakout’s.

Thank you.

Eurocomponents, Inc.
Daytona Beach – FL – USA
Phone +1 386-868-0696

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