Graupner OS MAX 25 XZ (2754)

4.09 cc capacity.
High-performance motor especially for racing remote controlled Truggy models on a scale of 1:8.

5-channel motor with 21J carburettor
More torque than 3.5 cc motors thanks to the greater capacity
Distinctly lower fuel consumption than 4.5 cc motors
The overall characteristics of the motor are optimally attuned to Truggy models
Specification

rpm range, approx. 4000 - 39000 U/min
All-up weight, approx. 370 g
Stroke 17,0 mm
Cylinder capacity 4,09 cm³
Output (kW, PS) at 2,30 (3,1) bei 33000 U/min
Carburettor 21J
Shaft thread 1/4"-28 UNF
Bore 17,5 mm