Just found these & had to order one. only $21
BMS-616DMG+HS Super Strong Digital Servo for bugggy (Metal Gear)10.2kg / .12sec / 46.5g
Double ball bearing (Si-oil)
CE Certified Strong 3 Pole Motor
Heavy duty sealed water proof case
Alloy heatsink
Digital signal design with 100% fitting square PWS
Automatic measures central ms
ALU 6061 alloy and C95 gear material
Digital IC (SOP package with 12bits transfer data)
MOS-FET driver (spirited driver able to push over 7A power)
Weight: 46.5g / 1.66oz
Dimensions: 40.5 x 20 x 38.5mm / 1.60" x 0.78" x 1.54"
Torque At 6.0V: 10.2kg/cm , 136 oz/in
Speed At 6.0V: 0.12 sec / 60° at no load
Operating voltage: 4.8 - 6.0V