This is the Mamba Monster Monster Truck and Extreme 1/8 scale Brushless Power System from Castle Creations. FEATURES: Motor: Neu-Castle 2650 KV motor designed for 1/8 scale Buggy applications (see COMMENTS) Intended for 4S (16.8 Volt) operation Standard Neo rotor on a 5mm shaft High end bearings for trouble free operation Machined integrated cooling fins 4 pole, slotted, brushless motors wound 1 turn in a Y configuration ESC: Designed for extreme 1/8 scale monster truck applications Profiles can be custom designed on a PC Infinitely adjustable throttle and brake curves with timing advance Punch Control allows dialing in horsepower where needed Brake Strength allows straight tracking under hard braking Drag Brake helps entry into corners Start Power for smooth launches Programmable cutoff voltage for LiPo usage On/Off switch Universal receiver connector INCLUDES: 2650kv Neu/Castle motor 18T Pinion gear Mamba monster version 3 speed control REQUIRES: Installing into vehicle USB Cable SPECS: Motor: Length: 67.78mm (2.67") Diameter: 39.98mm(1.57"), 41.78mm (1.6") with fins Weight: 121g (0.27lb) Shaft Diameter: 5mm (.2") Max Input Volts: 16.8V Amp Rating: 120 Wire Lead Guage: 10 ga ESC: 6 cell LiPo Continuous: N/A Resistance: .0003 Ohm Brake: Proportional with adjustable curve Reversible: Yes, with lockout Low Voltage Cut-off: Programmable Size: 2.2 x 1.9 x 1.4" (56 x 48 x 35mm) Weight: 4.3oz (121g) Connector Type: 6.5mm COMMENTS: Use 2200Kv motor for Monster Truck and 1/8 scale Truggy Applications cnh 1/26/09 ir/jxs updt jxs 8/20/09