Star Adjustable Pressure Clutch Plate Upgrade
Dial in your clutch pressure in under 5 minutes — no primary teardown required.
Part Description
Slipping clutches rob power and wear out fast under hard acceleration. Most fixes mean buying a whole new basket, springs, or pressure plate setup. The Star Adjustable Pressure Clutch Plate Upgrade gives you a smarter path: two CNC-billet plates, each with two spring pressure settings, rated to handle up to 170 ft-lb of torque. It's a true bolt-on install — swap the stock plate for one of these, and you're back on the road in under 5 minutes, no primary cover removal needed and works with your stock derby cover and existing springs.
Engineered for Harley-Davidson Twin Cam CVO 2013-up and Milwaukee-Eight 2017-up models running stock 3-spring clutches, this kit installs in place of your factory plates and works with the stock derby cover, keeping the job fast and simple. Four adjustment positions (+.015", +.025", +.035", +.050") let you fine-tune pressure as your spring setup or riding demands change — no guesswork, no replacing parts every time you want more bite.
Running a cam upgrade or other power adders? This kit pairs perfectly — added horsepower means added clutch load, and adjustable pressure lets you keep pace without slip.
Star Adjustable Pressure Clutch Plate Upgrade
- 5-Minute Bolt-On Install — Swaps in for the stock plate. No primary removal, no extended downtime. Compatible with your stock derby cover.
- Adjustable Clamping Force — Two adjustment positions per plate let you increase or decrease spring pressure to match your clutch springs and riding style, instead of locking you into one fixed setting.
- CNC-Billet Construction — Precision-machined from billet stock for tight tolerances and consistent engagement
- Rated to 170 ft-lb — Built to hold up under real torque
- Pairs with Cam Upgrades — More power means more clutch load. Adjustable pressure settings let your clutch keep up as you add horsepower.
- Universal Spring Compatibility — Works with any 3-spring clutch setup, so you can pair it with whatever springs you currently have. No need to buy unnecessary parts.
Compatible with all Harley-Davidson Twin Cam 2013-up CVO and Milwaukee-8 2017-up models using a factory 3-spring clutch setup.
Installs in place of the stock clutch plates and retains the stock derby cover — a true bolt-on swap with no primary cover removal required, typically completed in under 5 minutes. Use the adjustment chart (included) to select the spring pressure setting that matches your spring rate and riding application. New/upgraded clutch springs not required for use and therefore not included.
Clutch Plate Settings Guide
Springs 0.015" 0.025" 0.035" 0.050" Stock H-D 78 79 80 81 H-D 1275 83 85 85.5 86 Barnett Red 91 93 94 95 Derby cover (T27 torque bit) and clutch spring bolts (10mm socket) are recommended to be tightened to 100 in-lb.
