
WÖSSNER Segment Ø55.00 mm (Manufacturer part number: RSB5500) — a segment designed by Wössner, a German manufacturer known for its engine parts for 2 and 4-stroke engines. This segment is designed to fit Wössner pistons and allows for a careful refurbishment of the piston/cylinder assembly.
The segment plays a central role in sealing the combustion chamber and maintaining compression: choosing a segment with the exact diameter is essential to reduce pressure losses, limit oil leaks into the light, and preserve the proper functioning of the engine. This model is offered in Ø 55.00 mm, suitable for the corresponding pistons.
Practical for a controlled restoration after wear, this segment is aimed at motorcyclists who perform engine maintenance themselves or workshops looking for a part compatible with Wössner pistons. Examples of compatible motorcycles: KTM 125 SX (2025), HUSQVARNA CR 125 (2014), and HONDA CR 125 R (2003).