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S50(W), S5C(W), S5S(W), S-RC5(W), S-RF5(W), XL-RD5(W), X-RC5(W), X-RD5(W), X-RF5(W)[1]
  Number of gear teeth        
Gear Sun Gear 1 Pinion to Sun 1 Pinion to Ring 1 Ring gear 1 Path: 1=R to P, 2=Direct, 3=P to R Gear Drive Ratio Drive ratio as fraction Ratio incre- ment
1 36 12 12 60 1 0.625    5/8   
2 30 18 12 60 1 0.750    3/4  1.200
3 30 18 12 60 2 1.000 1        1.333
4 30 18 12 60 3 1.333 1   1/3  1.333
5 36 12 12 60 3 1.600 1   3/5  1.200

[1]
John Allen:
Teeth counted by Bruce Dance