GMS .25

GMS .25 ABC  w/Muffler

Displacement:             0.25cu in / 4.07cc

Bore:                           0.709 in / 18 mm

Stroke:                        0.630 in / 16mm

RPM range:                2,400 – 19,000

Output:                       0.85 HP @ 18,000 RPM

Weight:                      10.93 oz / 310 g

Recommended prop sizes:

     Sport                           9 X 4

     Racing                        8 X 5-6

     Scale                           9 X 5

Features:

     True ABC technology, Twin needle carburetor,

     Dual ball bearings, comes with muffler

Price: R644-00

                   GMS 1.20 Ring

GMS 1.20 Ring  

Displacement:             1.20 in / 19.9 cc

Bore:                          1.181 in / 30 mm

Stroke:                        1.110 in / 28.2 mm

RPM range:                1,800 – 14,000

Output:                       3.3 HP @ 13,000 RPM

Weight:                      26.46 oz / 750 g

Recommended prop sizes:

     Sport                           16 X 10

     Racing                        16 X 8

     Scale                           18 X 5-6

Features:

     Ringed piston, Twin needle carburetor,

     Dual ball bearings, comes with-out muffler

Price: R1790-00 

GMS Dimensions reference chart

GMS 25

A

38

B

15

C

77.7

D

45

E

74.2

F

55

G

30

H

47.5

J

59.2

S

UNF1/4