- Progressively wound springs using Kobe super-clean, chromium silicon(CrSi) based wire that is heat treated and shot peened
- Tight-tolerance, FEA-designed hardened steel Posi-Loc style upper or titanium retainers to ensure correct assembly height and resist keeper "pull through"
- Heat treated (H.T.) steel basewashers are designed to fit on top of either the OEM or KPMI tophat seals in this kit
- Made in the USA
- Kit uses OEM-style valve keys (sold separately).
- '23-'24 CVO's check valve lift to deteremine compatibility with Kibblewhite Precision Machining Inc. (KPMI®) spring kits.
- Not for aftermarket rocker arms with increased mass and/or rocker ratio.
- Installed spring height is 1.500".
Kit Includes:
- 8x H.T. Steel Retainers
- 8x H.T. Steel Basewashers
- 8x CrSi Valve Springs
- 9x Red Rubber Coated Seals
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2018-2019 | Harley-Davidson | Breakout FXBR 107 | |
| 2018-2020 | Harley-Davidson | Breakout FXBRS 114 | |
| 2017 | Harley-Davidson | Breakout FXSB | |
| 2017-2021 | Harley-Davidson | CVO Limited FLHTKSE | |
| 2018-2022 | Harley-Davidson | CVO Road Glide FLTRXSE | |
| 2022 | Harley-Davidson | CVO Road Glide Limited FLTRKSE | |
| 2020-2022 | Harley-Davidson | CVO Tri Glide FLHTCUTGSE | |
| 2018-2020 | Harley-Davidson | Deluxe FLDE 107 | |
| 2019-2022 | Harley-Davidson | Electra Glide Standard FLHT | |
| 2017-2019 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU | |
| 2018-2019 | Harley-Davidson | Fat Bob FXFB 107 | |
| 2018-2022 | Harley-Davidson | Fat Bob FXFBS 114 | |
| 2018-2019 | Harley-Davidson | Fat Boy FLFB 107 | |
| 2018-2022 | Harley-Davidson | Fat Boy FLFBS 114 | |
| 2017 | Harley-Davidson | Fat Boy FLSTF | |
| 2017 | Harley-Davidson | Fat Boy Lo S FLSTFBS | |
| 2017-2022 | Harley-Davidson | Freewheeler FLRT | |
| 2019-2020 | Harley-Davidson | FXDR FXDRS 114 | |
| 2018-2021 | Harley-Davidson | Heritage Classic FLHC 107 | |
| 2018-2022 | Harley-Davidson | Heritage Classic FLHCS 114 | |
| 2017 | Harley-Davidson | Heritage Softail Classic FLSTC | |
| 2022 | Harley-Davidson | Low Rider El Diablo | |
| 2018-2020 | Harley-Davidson | Low Rider FXLR 107 | |
| 2020-2021 | Harley-Davidson | Low Rider S FXLRS 114 | |
| 2022 | Harley-Davidson | Low Rider S FXLRS 117 | |
| 2022 | Harley-Davidson | Low Rider ST FXLRST 117 | |
| 2017-2022 | Harley-Davidson | Road Glide FLTRX | |
| 2020-2022 | Harley-Davidson | Road Glide Limited FLTRK | |
| 2017-2022 | Harley-Davidson | Road Glide Special FLTRXS | |
| 2022 | Harley-Davidson | Road Glide ST FLTRXST | |
| 2017-2019 | Harley-Davidson | Road Glide Ultra FLTRU | |
| 2017-2022 | Harley-Davidson | Road King FLHR | |
| 2017-2022 | Harley-Davidson | Road King Special FLHRXS | |
| 2017 | Harley-Davidson | Softail Deluxe FLSTN | |
| 2017 | Harley-Davidson | Softail Slim FLS | |
| 2018-2021 | Harley-Davidson | Softail Slim FLSL 107 | |
| 2017 | Harley-Davidson | Softail Slim S FLSS | |
| 2020-2022 | Harley-Davidson | Softail Standard FXST 107 | |
| 2018-2021 | Harley-Davidson | Sport Glide FLSB 107 | |
| 2018-2020 | Harley-Davidson | Street Bob FXBB 107 | |
| 2021-2022 | Harley-Davidson | Street Bob FXBBS 114 | |
| 2017-2022 | Harley-Davidson | Street Glide CVO FLHXSE | |
| 2017-2022 | Harley-Davidson | Street Glide FLHX | |
| 2017-2022 | Harley-Davidson | Street Glide Special FLHXS | |
| 2017-2022 | Harley-Davidson | Tri Glide Ultra FLHTCUTG | |
| 2022 | Harley-Davidson | Tri Glide Ultra FLHTCUTG G.I. Enthusiast Collectio | |
| 2017-2022 | Harley-Davidson | Ultra Limited FLHTK | |
| 2017-2019 | Harley-Davidson | Ultra Limited Low FLHTKL | |