Legend Suspensions AIR-A Adjustable Monoshock Fits Harley-Davidson M-Eight Softail 2018-2024

Part #:1311-0156

$1,799.95

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A single AIR-A monoshock with a six-position rebound knob and an internal floating nitrogen piston, built for 2018-2024 Milwaukee-Eight Softail chassis including Fat Boy, Heritage Classic, Low Rider S, and Street Bob.

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  • Usually ships1 to 3 business days
(605) 498-0105 M–F | 9:00–4:30 CST90-Day ReturnsExpedited & international shippingMade in USA

Legend Suspensions AIR-A Adjustable Monoshock Fits Harley-Davidson M-Eight Softail 2018-2024

The Milwaukee-Eight Softail runs a single rear shock under the seat. Legend Suspensions replaces that stock OEM monoshock with an AIR-A monoshock that adjusts ride height at the handlebar and tunes rebound damping at the shock with a six-position external knob.

Key Features

  • Single monoshock that replaces the stock OEM rear shock under the seat, sold as each, not as a pair
  • Aramid-fiber air spring with deflective disc valving and spherical bearings
  • Six-position external knob rebound damping adjuster
  • AIR mono-tube construction with internal floating nitrogen piston
  • Type III hard-coat black anodized billet aluminum body
  • Prewired air compressor with M8 Softail mounting bracket and a complete wire harness with three Deutsch connections
  • OEM-look black handlebar-mounted control for ride-height adjustment

Technical Specifications

Type
AIR mono-tube
Model
AIR-A
Adjustment Type
Adjustable rebound damping (six external knob positions)
Extended Length
13 inch
Material
Billet aluminum body, aramid-fiber air spring
Finish
Type III hard-coat black anodize
Reservoir Location
Internal floating nitrogen piston
Mounting Position
Rear monoshock
Units
Sold as each (single shock)
Country of Origin
Made by hand in Sturgis, South Dakota, USA

Fitment Notes

  • Sold as a single shock: M8 Softail uses one central monoshock under the seat, not a pair
  • Does not fit FXDRS
  • Reference the Fitment tab for the full year and model breakdown
  • Not affiliated with or endorsed by Harley-Davidson

Compatible Milwaukee-Eight Softail Models

This monoshock fits the 2018-2024 Harley-Davidson Milwaukee-Eight Softail chassis; reference the model table for the year-by-year breakdown.
YearModelSubmodel
2022-2024FXLRSLow Rider S 117
2022-2024FXLRSTLow Rider ST 117
2022FXBBSoftail Street Bob
2021-2024FXBBSStreet Bob 114
2020-2024FXSTSoftail Standard 107
2020-2021FXLRSLow Rider S 114
2018-2024FLFBSFat Boy 114
2018-2024FLHCSHeritage Classic 114
2018-2021, 2023FXFBSFat Bob 114
2018-2021FLHCHeritage Classic 107
2018-2021FLSLSoftail Slim 107
2018-2021FLSBSport Glide 107
2018-2020FLDEDeluxe 107
2018-2020FXBBStreet Bob 107
2018-2020FXBRSBreakout 114
2018-2020FXLRLow Rider 107
2018-2019FXBRBreakout 107
2018-2019FLFBFat Boy 107
2018-2019FXFBFat Bob 107
Weight 9.1 lbs
Dimensions 16 × 16 × 6 in

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