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5" (38 mm) Brakes Proportional Programmable Yes Reverse Yes Product Weight 2
and increase durability
Colored parts have been infused with pigment
including: steerable front end
14mm for ARRMA Vehicles (Plastic PRO634700 or Aluminum PRO634600)
B4-2 Engine (3) - EST1601 king shock 5" (38 mm) Brakes ProportionalOverview The Estes B4 2 engine is single stage engine designed for model rocket flight. This engine is a standard engine designed for flights in rockets weighing less than 4 ounces, including the engine. Each package includes 3 engines, 4 starters and 4 plugs.
US$ 12.99
US$ 547.81
US$ 14.45
