Wössner
Wössner is a German manufacturer of forged pistons for motorsport — producing since 1985 on CNC machining centres to exceptionally tight tolerances. What sets it apart is its focus on performance: it specialises in high-compression pistons and forced-induction (turbo) builds, not just standard OEM replacements. You'll find them in the IDM, FIM and ADAC championships, in track-day engines and in tuned street builds. The range covers road bikes (BMW, Kawasaki, Suzuki, Ducati, Yamaha), MX/enduro and ATVs. Available at uncimoto.sk with a delivery time of 7–14 days.
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Cylinder KTM 85 SX 18
581,00 €

Crank shaft KTM 125 SX 23
409,00 €

Crank shaft KTM 125 SX 16
409,00 €

Crank shaft YAMAHA YZ 125 22
369,00 €

Crank shaft KTM 65 SX 09
299,00 €

Connecting rod kit KTM 500 EXC
287,00 €

Connecting rod kit KAWASAKI KXF 250
287,00 €

Connecting rod kit TM 250 FI
287,00 €

Connecting rod kit KTM 450 EXC / HSQ
287,00 €

Connecting rod kit KAWASAKI KXF 450
258,00 €

Connecting rod kit KTM 450 SXF
256,00 €

Connecting rod kit KTM 350 SXF
256,00 €

Piston kit HONDA TRX 450
252,00 €

Connecting rod kit HONDA XR 650
250,00 €

Connecting rod kit KTM 350 SXF
250,00 €

Connecting rod kit KTM 250 SXF
247,00 €

Connecting rod kit KAWASAKI KXF 250
246,00 €

Connecting rod kit KTM 450 SXF
240,00 €

Connecting rod kit KTM 250 SXF
240,00 €

Piston kit KTM 450 SXF 23
from231,00 €

Connecting rod kit KTM 450 EXCR
230,00 €

Piston kit KTM 350 EXCF
from227,00 €

Piston kit SUZUKI LTR 450
from227,00 €

Piston kit KTM 250 SXF 23 / HUSQVARNA / GAS
from227,00 €

Tips & guides
When to replace a piston and how to pick the right size — a guide with ProX