Jims Hydraulic Rocker Hydraulic liftersRef : JIMS00011A / 09290015

JIMS Hydrosolid Rocker — Manufacturer Ref. 1820

The JIMS Hydrosolid lifter combines the flexibility of a hydraulic lifter with the consistency of a solid lifter as the RPM increases. Designed for discerning motorcyclists seeking a crisp valve response beyond mid-range RPMs, this rocker operates hydraulically up to 5,500 RPM and then converts to a solid lifter, providing an increase of approximately 3 to 6 usable horsepower in the high range. Made in the USA, it aims to modernise the valve train without the need for a high-RPM hydraulic pump.

Key points to know:

• Behaviour: Hydraulic up to 5,500 RPM, then solid beyond.
• Advantage: Better valve lift retention at high RPM, prevents excessive pumping of the hydraulic pump.
• Installation: Requires the use of adjustable pushrods.
• Origin: Made in the USA by JIMS.

Technical specifications:

• Diameter: 0.8420
• Model: Hydrosolid
• Style: Hydraulic (convertible to solid)
• Unit: Each
• Category: LIFTERS + PARTS

Ideal for Vintage/Classic, Touring, Trail/Adventure, and Roadster universes. Examples of affected models: Harley-Davidson FXLRST 1923, BUELL XB12X Ulysses, Harley-Davidson FXLRS 1923 — check exact compatibility with your machine before installation.