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|LEGO® → TECHNIC|
|Keys for wind-up motor|
1205 Keys for wind-up motor is a TECHNIC set released in 1982. The set includes two red keys to be inserted into a wind-up motor like the one in the set 890 Wind-Up Motor. This set is identical to 5004 Motor Keys.
- The key was often the first part to break, because of the torque needed to wind the motor. Therefore this replacement set was released one year after the motor.
- The shape of the junction of the key with the motor is based on a square section on the motor, but the key has a star section (combination of two squares rotated of 45 degrees) to allow easier insertion, every 45 degrees.