Gear

                  1              2              3               4             5

mph                                                                          rpm

5              2129        1324        978           801         680

10            4257        2648        1957         1601       1360

15            6386        3972        2935         2402       2040

20            8515        5296        3913         3203       2720

25            10644      6619        4892         4004       3400

30                           7943        5870         4804       4080

35                           9267        6849         5605       4760

40                           10591      7827         6406       5440

45                                           8805         7207       6120

50                                           9784         8007       6800

55                                           10762       8808       7480

60                                                            9609       8160

65                                                            10410     8840

70                                                                           9520

75                                                                          10200

80                                                                          10880

Gear (% = Gear Gap)

                1              2              3              4               5

rpm          37.8%      26.1%      18.2%      15.1%     mph    

7000        16.4         26.4         35.8          43.7        51.5

8000        18.8         30.2         40.9          50.0        58.8

9000        21.1         34.0         46.0          56.2        66.2

3500        8.2           13.2         17.9          21.9        25.7

4000        9.4           15.1         20.4          25.0        29.4

4500        10.6         17.0         23.0          28.1        33.1

5000        11.7         18.9         25.6          31.2        36.8

5500        12.9         20.8         28.1          34.3        40.4

6000        14.1         22.7         30.7          37.5        44.1

6500        15.3         24.5         33.2          40.6        47.8

7000        16.4         26.4         35.8          43.7        51.5

7500        17.6         28.3         38.3          46.8        55.1

8000        18.8         30.2         40.9          50.0        58.8

8500        20.0         32.1         43.4          53.1        62.5

9000        21.1         34.0         46.0          56.2        66.2

9500        22.3         35.9         48.6          59.3        69.9

10000      23.5         37.8         51.1          62.4        73.5

10500      24.7         39.7         53.7          65.6        77.2

11000      25.8         41.5         56.2          68.7        80.9

5500 rpm is my advised warming up speed.

It's also the maximum speed

I would run a new engine in.

It probably takes 3.5 to 5 miles to warm up, dependant on outside temperature.

I would not go past peak power, the engines power will dramatically drop off above this and increase engine wear.

If you use the bike above 7000rpm (51mph 5th Gear), see the

Important Spark Plug Information (extended high speed riding part) and

Which Oil quality to use in the

Servicing page.

Front Disc Brake model (2005) Test Ride, flat out 

3rd = 55mph

4th = 60 / 62mph (downhill, headwind)

5th = 60mph (same headwind) 

Pre 2004 CG 125 version

with max speed indicators on 

speedometer for every gear

5th = 70mph

4th = 58mph

3rd = 45mph

Pre 2004 kilometres version with max speed indicators on speedometer for every gear

Gear        km/h        mph

1             30           18.6

2             50           31.1

3             70           43.5

4             90           55.9

5             110         68.3

Peak Torque 7000 rpm, Peak Power 8500 rpm