HACKER
Gear Sets
SPRINT 200 GEAR SET 1:57
Planetary gear box for 200 size electric motors (such as Hacker 3101).
For indoor or slow flyers.
Uses a 1:5.7 gear ratio.
SPRINT 280 GEAR SET 1:4.5
Planetary gear set for 280 size electric motors.
Fits Hacker's 3102 perfectly.
Gives a 1:4.5 ratio.
SPRINT 280 GEAR SET 1:4
Planetary gear box for most 280 electric motors.
Uses a 1:4 gear ratio.
SPRINT 300 GEAR SET
Planetary gear set for 300 size motors.
For 1:3.6 gear ratio.
SPRINT 400 GEAR SET 1:3.6
Planetary gear box for 400 size electric motors.
Uses 1:3.6 gear ratio.


For more information and option to buy link to:
www.sigmfg.com