Product Information "Tuning Cylinder Kit ZT63N Stage 2 (63cc) - for Simson KR51/1 Swallow, SR4-2 Star, SR4-3 Sparrow, SR4-4 Hawk"
Cylinder kit ZT63N Stage 2
For a long time, there were very few, more powerful cylinders for the KR51/1. This is due to unfavorable channel guidance on the one hand, and with more powerful kits, one quickly reaches the thermal load limit. With only 2 oversize pistons, the longevity of such gray cast iron cylinders was also limited.
The heat sink and the liner are made of high-quality aluminum casting. The liner is coated in a special process, making it extremely robust and optimal against wear.
The thermal conductivity is also significantly higher than with a cylinder variant with a gray cast iron liner. In addition, the heat dissipation is further improved by a blasted, slightly rough surface.
Thus, the 2 core problems could already be eliminated by the use of new technologies.
The timing and channel cross-sections were designed for high torque from the speed cellar and a wide power band to harmonize perfectly with the 3-speed gearbox. So the drivability from the speed cellar is absolutely identical to our "old tuning cylinders". In addition, however, the performance in the middle and upper speed range could be significantly increased, resulting in a power band and power development that is otherwise unmatched in this class.
Features:
- Original look cylinder with coated aluminum liner
- high-quality material for heat sink and liner
- improved heat dissipation through finely blasted surface and coated aluminum liner
- long durability approx. 10 TKm per piston, several oversizes are available)
- Vmax 90-95 km/h
- approx. 9.5 hp
Scope of delivery:
- ZT63N cylinder
- ZT63 cylinder head
- ZT 1-ring piston Ø45 mm including rings, pin & clips
- Carburetor flange gasket
- 2x cylinder base gasket
- 2x carburetor flange studs
Note:
Only Motul 800 2T Road Racing may be used as mixing oil!
Use rubber buffers (10070259) for exhaust mounting! Possible breakage of the manifold thread with rigid mounting!
Product Details
Key features & properties
- Anzahl Kolbenringe
-
1
- 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