S&S Cycle 2017+ M8 Models 1.640 To 1 Ration Forged Roller Rocker Arms

S&S engineers designed stronger, more durable components that will help you get the most out of your M8 and increase the longevity of your valvetrain components.

• Rocker geometry is better suited to high lift cams and a must have for cams with .550 in. or greater lift
• Rollers eliminate thrusting on valves for decreased wear on the valve train
• Designed using Finite Element Analysis (FEA)
• Forged from 8620 steel for greater strength
• Capable of .650 in. max Valve Lift
• 1.640 Ratio

Fitment:
Harley Davidson FLFBS Fat Boy 114 Base 2018 to 2021
Harley Davidson FLHCS Heritage Classic 114 Base 2018 to 2021
Harley Davidson FLHR Road King Base 2017 to 2021
Harley Davidson FLHRC Road King Classic Base 2017 to 2019
Harley Davidson FLHRXS Road King Special Base 2017 to 2021
Harley Davidson FLHT Electra Glide Standard Base 2019 to 2021
Harley Davidson FLHTCU Electra Glide Ultra Classic Base 2017 to 2019
Harley Davidson FLHTCUTGSE CVO Tri Glide Base 2020 to 2021
Harley Davidson FLHTK Ultra Limited Base 2017 to 2021
Harley Davidson FLHTKL Ultra Limited Low Base 2017 to 2020
Harley Davidson FLHTKSE CVO Limited Base 2017 to 2021
Harley Davidson FLHX Street Glide Base 2017 to 2021
Harley Davidson FLHXS Street Glide Special Base 2017 to 2021
Harley Davidson FLHXSE CVO Street Glide Base 2017 to 2021
Harley Davidson FLRT Freewheeler Base 2017 to 2021
Harley Davidson FLTRK Road Glide Limited Base 2020 to 2021
Harley Davidson FLTRU Road Glide Ultra Base 2017 to 2020
Harley Davidson FLTRX Road Glide Base 2017 to 2021
Harley Davidson FLTRXS Road Glide Special Base 2017 to 2021
Harley Davidson FXBRS Breakout 114 Base 2018 to 2020
Harley Davidson FXDRS FXDR 114 Base 2019 to 2020
Harley Davidson FXFBS Fat Bob 114 Base 2018 to 2021