
From:
http://www.scooterhelp.com/cgi-bin/vespa.gear.calc.pl
Highest PX gearing possible:
Ratio-->
|
12.47
|
8.48
|
5.85
|
4.36
|
RPMs
|
1st Gear KPH
|
2nd Gear KPH
|
3rd Gear KPH
|
4th Gear KPH
|
1000
|
6
|
9
|
14
|
18
|
2000
|
13
|
19
|
28
|
37
|
3000
|
19
|
29
|
42
|
56
|
4000
|
26
|
38
|
56
|
75
|
5000
|
32
|
48
|
70
|
94
|
6000
|
39
|
58
|
84
|
113
|
7000
|
46
|
67
|
98
|
132
|
8000
|
52
|
77
|
112
|
151
|
9000
|
59
|
87
|
126
|
169
|
10000
|
65
|
97
|
140
|
188
|
4th Gear Power Requirements
RPM
|
HP
|
5000
|
5
|
6000
|
10
|
7000
|
14
|
8000
|
22
|
9000
|
31
|
10000
|
45
| |