Product Information "Tuning cylinder kit ZT63N Stage 1 (63cc) - for Simson KR51/1 Schwalbe, SR4-2 Star, SR4-3 Sperber, SR4-4 Habicht"
ZT63N Stage 1 cylinder kit
For a long time, there were very few more powerful cylinders available for the KR51/1. This is due to unfavorable channel routing and the fact that higher-performance kits quickly reach their thermal limit. With only 2 oversize pistons, the durability of such gray cast iron cylinders was also limited.
The cooling body and the running sleeve are made of high-quality aluminum casting. The running sleeve is coated in a special process, making it extremely robust and providing optimal protection against wear.
The thermal conductivity is also significantly higher than with a cylinder variant with a gray cast iron sleeve. In addition, the heat dissipation is further improved by a blasted, slightly rough surface.
Thus, the two core problems have already been eliminated through the use of new technologies.
The timing and channel cross-sections have been designed for high torque from low RPMs and a wide power band to harmonize perfectly with the 3-speed gearbox. This means that the drivability from low RPMs is absolutely identical to our "old tuning cylinders". In addition, however, the power in the middle and upper RPM range has been significantly increased, resulting in a power band and power development that is otherwise unmatched in this class.
Features:
- Original look cylinder with coated aluminum sleeve
- High-quality material for cooling body and running sleeve
- Improved heat dissipation through blasted surface and coated aluminum sleeve
- Long durability, approximately 10,000 km per piston (multiple oversizes available)
- Vmax 80-90 km/h
- Approximately 8.5 PS
Scope of delivery:
- ZT63N cylinder
- ZT63 cylinder head
- ZT 2-ring piston Ø45 mm including rings, pin & clips
- Carburetor flange gasket
- 2x cylinder base gasket
- 2x carburetor flange studs
Only Motul 800 2T Road Racing mixing oil may be used!
Use rubber buffers (10070259) for exhaust installation! Rigid mounting may cause the exhaust manifold thread to break!
Product Details
Key features & properties
- Anzahl Kolbenringe
-
2
- Ausführung
-
Tuning
- Baugruppe
-
Motor & -teile
- Durchmesser in mm
-
45
- Einlasskanal in mm
-
21
- Hubraum in ccm
-
60
- Passend für Fahrzeughersteller
-
Simson
- Passend für Fahrzeugtyp
-
Duo 4/1
, KR51/1 Schwalbe
, SR4-2 Star
, SR4-3 Sperber
, SR4-4 Habicht
- Variante
-
2-Kanal