Rotax has introduced a new Reed Valve assembly which will replace the one currently in use. This change came about because Rotax’s reed valve assembly production tool reached the end of its production life cycle.
The new tool used results in a slightly different reed valve assembly. The finish treatment is improved from the previous version. The part number for the new reed valve assembly is 224389, and replaces the old reed valve assembly 224387.
The new reed valves will be available soon. The question on all drivers’ minds is of course if there is any performance difference. Who’ll be the first to test them?
Pictured below on the left is the old one, on the right the new one: