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Bolt-on kit requires no machining of stock components
Comes with cylinder gaskets, hardware and installation instructions
Made in the USA
Product Note:Only fits machines with 114 or 117 cubic inch engines.
Specification
Details
Bore
4-1/4 in.
Color
Varies (make selection above)
Compression Ratio
11.1:1
Country of Origin
USA
Displacement
128CI
Engine Type
Milwaukee Eight
Finish
Varies (make selection above)
Material
Aluminum
Stroke
4.5 in.
Warranty
1 Year Manufacturer Warranty
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
Harley Davidson
FLFBS Softail Fat Boy 114 2018-2024
FLHCS Softail Heritage Classic 114 2018-2024
FLHRXS Road King Special 2019-2025
FLHTCU Electra Glide Ultra Classic 2019
FLHXS Street Glide Special 2019-2023
FLHXST Street Glide ST 2022-2023
FLTRXS Road Glide Special 2019-2023
FLTRXST Road Glide ST 2022-2023
FXBBS Softail Street Bob 114 2021-2024
FXBR Softail Breakout 2018-2019, 2023-2024
FXBRS Softail Breakout 114 2018-2020
FXDR Softail 114 2019-2020
FXFBS Softail Fat Bob 114 2018-2023
FXLRS Softail Low Rider S 2020-2024
FXLRST Softail Low Rider ST 2022-2024
Customer Reviews
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Questions & Answers
Will this kit fit 2020 114ci lowrider s?
By Dino D.
Yes, if you were to select the 2020 Harley Davidson FXLRS Softail Low Rider S from our fit guide, you'd receive the correct big bore kit for your machine.
What brand are the pistons
By Frank
This kit would have S&S pistons.
Have a question? Please ask our experts and customers who own this product.
