Rotax RM1 - Page 124

Operator`s Manual RM1
Seite/page 124/132 ROTAX KART RM1 Ausgabe/Edition 01/2006
Gear ratio 1st gear
Number of teeth of
primary drive gear gear ratio
Traditional gear
ratio
(in sprocket sizes)
theoretical max. speed
(in km/h / mile/h)
(at 12.500 r.p.m. and wheel
diameter 870 mm
/ 34,25 in.)
32 65
8,65 10 to 87 75 / 47
33 64
8,26 11 to 91 79 / 49
34 63
7,89 11 to 87 83 / 52
35 62
7,55 12 to 90 86 / 53
36 61
7,22 12 to 87 90 / 56
37 60
6,91 12 to 83 94 / 58
38 59
6,61 12 to 80 99 / 62
4,26
g
ear ratio of 1st
g
ear
(
cannot be chan
g
ed
)
Number of teeth of
secondar
y
drive
g
ea
r
Gear ratio 2nd gear
Number of teeth of
primary drive gear gear ratio
Traditional gear
ratio
(in sprocket
sizes)
theoretical max. speed
(in km/h / mile/h)
(at 12.500 r.p.m. and wheel
diameter 870 mm /
34,25 in.)
32 65
6,52 14 to 91 100 / 62
33 64
6,23 14 to 87 105 / 65
34 63
5,95 14 to 83 110 / 68
35 62
5,69 14 to 79 115 / 72
36 61
5,44 14 to 76 120 / 75
37 60
5,21 14 to 73 125 / 78
38 59
4,98 15 to 75 131 / 81
3,21
g
ear ratio of 2nd
g
ear
(
cannot be chan
g
ed
)
Number of teeth of
secondar
y
drive
g
ear
 Note: To facilitate the change of gear ratio it is recommended to carry for each gear ratio a
clutch drum with a pre-assembled primary drive gear and the respective secondary
gear.
 Note: To allow easier matching of primary and secondary gears please note: The sum of
the last digits of the teeth number must always be 7 or 17 (35 / 62).