BZ3 Instruction manual
23
23
Motor Gear (pinion)
1.69
13
14
15
16
17
18
19
20
21
Spur
54
5.70
5.37
5.07
4.80
4.56
4.35
56
6.76
6.31
5.92
5.57
5.26
4.98
4.73
4.51
58
7.54
7.00
6.53
6.13
5.77
5.45
5.16
4.90
4.67
Recommend Gear ratio for Atomic Motors:
3500KV : around 4.3 ~ 4.6
5500KV : around 5.2 ~ 5.5
7000KV : around 5.8 ~ 6.2
Gear ratio decision is affected by strength of battery, chassis weigh and overall smoothness of
the transmission system also the size of the track.
Step 20 – Gear Ratio
