Part of the RRE-Tri-Blade range of Spannerless Technology products.
Lightweight and stylish replacement oil filler cap for Jawa Engines.
Made from anodised aluminium for lightness and durability, fitted
with an o-ring to ensure that it stays tight and no spanners to find
when changing oil between races. M16 thread
Later model Jawa engines require a filler cap with an M20 thread (same size as GM Engines)
Part numbers CJR00051 or CJR00114