Estes Rockets - Super Big Bertha Model Rocket Kit, Pro Series II ASC40123C - One (1) 43 tooth

- One (1) 43 tooth diff spiral cut ring gear

Weight: 61g

-Dimensions (Excluding Cable): 23

Seriously beef up your Baja suspension with this updated Rear Hub Carrier

Estes Rockets - Super Big Bertha Model Rocket Kit, Pro Series II ASC40123C - One (1) 43 toothMeet the Super Big Bertha, featuring a BT80 (2. 6 in 66 mm) diameter body tube for your building enjoyment. Standing over 36 inches tall, the Super Big Bertha comes with the quick release motor retention system just as the other Pro Series kits do. (9750 Motor Retainer Set is also sold separately). Construction of this kit is not difficult and the altitudes you will reach are very impressive! Building and finish work can easily be accomplished over a