a steel ring counterweight was added to the mouth of the mortar barrel on some vehicles to make elevation aiming easier

For the Losi 1/10 Tenacity and Lasernut series

Includes: Ultron SE Factory Assembled

Airplane and Helicopter Electronic Speed Controller (550-700 size)

Hot Racing Speed Run Center differential spool (locker) hub

Savox - High Torque, High Voltage Brushless Servo, Black, 0.11sec/1041.6 oz/in @ 8.4V BZN540215 a steel ring counterweight wasSpecifications: Operating Voltage: 6. 0V 8. 4V Speed: @6. 0v 0. 16 s 60 deg; @7. 4v 0. 13 s 60 deg; @8. 4V 0. 11 s 60 deg Torque: @6. 0V 722. 1 oz in; @7. 4V 902. 7 oz in; @8. 4V 1041. 6 oz in Case Type: Aluminum Water Resistant 25 Tooth gear spline Dimensions L x W x H (mm): 40. 3 x 20. 2 x 38. 7 Weight: 72g