The Progressive Suspension Quik Preload System (QPS) Upgrade Kit makes adjusting the preload on PS 444 Series and 944 Series shocks easier than ever before. With the QPS Upgrade Kit installed on 444 Series and 944 Series shocks, it's no longer necessary to take saddlebags off to adjust the sag when going from a single rider, to a two up riding configuration, and then back to a solo riding experience. This means the suspension can be set up for changes in weight load in less than a minute ensuring a perfect ride every time. With 30 complete turns of fine-tuning preload adjustment, the maximum performance of the suspension can be dialed in with a few twists of an 8mm socket. The QPS Upgrade Kit utilizes a sealed gear drive to smoothly adjust preload and offers the same range of preload adjustment as the original 444 or 944 series shock when it comes from the factory. As with the 444 and 944 Series shocks, the QPS Upgrade Kit comes with a Lifetime Limited Warranty.
| Years | Make | Model | Trim |
|---|---|---|---|
| 1994 | Harley-Davidson | Flhr Road King | |
| 2017, 2025 | Harley-Davidson | Flhrxs Road King Special | |
| 1984 | Harley-Davidson | Flht Electra Glide Standard | |
| 1984 | Harley-Davidson | Flhtc Electra Glide Classic | |
| 2024 | Harley-Davidson | Flhtk Electra Glide Ultra Limited | |
| 2006, 2023 | Harley-Davidson | Flhx Street Glide | |
| 2014 | Harley-Davidson | Flhxs Street Glide Special | |
| 1998 | Harley-Davidson | Fltr Road Glide |
| Air Freight Prohibited: false |
| Not Carb Approved: false |
| Carb Acknowledgement Required: false |
| Ltl Freight Required: false |
| Prop 65: Y |
| Part Type: powersports |
| Epa: N/A |
| Regular Stock: false |
| Units Per Sku: 1 |
No fitment data available for this product.
This product is covered by the manufacturer's warranty against product defects and missing components in the package. To file a claim, use the brand-specific links on our warranty page.
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