The Absima Thrust B-Spec series stands for outstanding reliability and performance. The Thrust B-Spec Set is designed for quality conscious beginners and hobbyists with special requirements. Installation and operation do not require much basic knowledge and are therefore very easy to handle. Absima B-Spec - powered by Hobbywing.



Top Features :


Water and dust protected speed controller Absima Common


Speed controller with small installation dimensions and built-in capacitor module


Motor with 2 ball bearings


Motor size 540




Features Brushed Speed Controller Crawler & Boot:


Waterproof and dustproof "all-weather" crawler brushed regulator


Small housing dimensions


Automatic range calibration between throttle and brake


Single-Click Forward / Reverse Function with Immediately Responding Motor Brake


Low Power Auto - Cut Off" battery


Fail Save Function


Application areas crawler and boat


Load capacity forward : continuous load 40A / short time load 180A


Load capacity reverse : continuous load 20A / short-time load 90A


Operation with 5 - 9 cells NiMH battery / 2 - 3 cells LiPo battery


Battery "Low Power Auto - Cut Off" ( NiMH 5 - 9 cells at 4.5 V / LiPo 2 cells 6.5 V / LiPo 3 cells 9.75 V )


Motor Limit :


when operating with 2 cells LiPo or 5 - 6 cells NiMH battery = motors size 540 or 550 with = 12T or < 30.000 rpm per V


for operation with 3 cells LiPo or 7 - 9 cells NiMH battery = motors size 540 or 550 with = 18T or < 20.000 rpm per V


Overheating protection at 100° C


Resistance Forward 0.002 Ohm / Reverse 0.004 Ohm


BEC 6 V / 2 A (Linear mod BEC)


Power transmission when reversing in crawler mode 100 % / boat mode 25 %


Connector system : Tamiya


Dimensions : (L/W/H) 46.5 x 34.0 x 28.5 mm


Weight 70 g


Plug & Drive System


on/off switch




Features B-Spec Motor :
50 x 2 Turns
8,300 rpm
90 watts
7.2 - 7.4 volts
Size 540
Shaft length 12.3 mm Ø 3.18 mm

Motor dimensions : length 53,2 mm Ø 35,7 mm
2 ball bearings




Scope of delivery :
Brushed Crawler / Boat Speed Controller
1 pc Motor Thrust B-Spec 50T
instruction manual

The company ABSIMA was founded in September 2011 in Nürnberg, Germany. As exclusive dealer for Team C Racing in Europe, Absima is one of the leaders in the RC Car industry worldwide. Absima offers a large selection of Cars in 1:10 and 1:8 scale, as well as thousands of quality spare and tuning parts, RC transmitters, servos, speed controllers, electric and glow motors, battery packs, and RC boats. From Ready to Run beginner kits to competition RC models, Absima has you covered!