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Thunder Tiger F-91S
4-Stroke Engines The F-54S and the F-91S are Thunder Tiger's crowning examples of pure power and performance in the most popular 4-stroke displacements. Smooth running, gobs of torque, reliable idle, realistic sound, and finely finished surfaces are all trademarks of each Thunder Tiger 4-stroke engine.

Thunder Tiger engines are fabricated from the finest material using ultra-precise computer controlled equipment in a clean, modern environment under ISO 9001 registered quality guidelines. Design is supervised by the world's most renowned engine designer, Mr. kA Mbar. You can count on Thunder Tiger for all your engine needs.

Displacement 0.913 (14.97 cc)
Bore 1.114 in (28.3 mm)
Stroke 0.937 in (23.8 mm)
RPM 2200 - 12000


1.6 BHP @ 11000 RPM
Weight 26.2 oz (736 g)
Price R Not Available