Thunder Tiger CORP. -- F-91S NO.9801

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F-91S

Item No. 9801
Specification
Displacement(c.c. / cu.in.) 14.97 c.c. / .914 cu.in. 
Bore(mm / in.) 28.3 mm / 1.114 in. 
Stroke(mm / in.) 23.8 mm / 0.937 in. 
Practical R.P.M.(R.P.M.) 2,000 ~ 12,000 rpm 
Output(BHP/RPM) 1.6 BHP / 11,000 RPM 
Weight(g/oz) 742.8 g / 26.20 oz 

Introduction

Thunder Tiger's powerhouse F-91S and F-54S are the perfect way to enjoy the advantages of four-stroke performance; the ability to swing a larger prop, increase torque, lower noise and improved fuel economy. Special camshaft and oversize valves combine to improve performance and ease of handling. An adjustable muffler, tool kit and comprehensive owner's manuals are included.