Brushless Forward/Brake

Comet HD BL Speed-Control

The new horizon of brushless technology
Art. no.: 90970
Availability:  Product is currently available at our warehouse in Germany.
In an intense two year development process, NOSRAM was again able to widen the horizon of brushless technology. NOSRAM is proud to return with a new benchmark setting speed control platform: the comet evo & comet HD brushless speedos will rock the market.
Beginning from a blank sheet of paper, the aim of NOSRAM’s R&D engineers was to replace the three existing pearl speed controls by the two comets. The NOSRAM comet speed controls are ready for modified and stock racing, they feature multiple options for your individual perfect setup.
Being the successor of a World Championship winning speedo is a strong commitment. How can the comet be even better? What does it make stand out from the crowd? Tremendous power output over the whole rpm range, easy setup, optimized cooling and unmatched software are only some of the comet’s highlights. The innovative case is tailored from machined aluminum resulting in a better heat dissipation which results in cooler running temperatures even under toughest competition conditions. 
NOSRAM has never released a more powerful speedo. Everything is ready for a great success story. Even the price is record setting low. Racers out there, go out on the track, race and win – with the new NOSRAM comet evo & comet HD brushless speed controls!    
NOSRAM comet HD - IFMAR ISTC Vice World Champion 2014! 
Xray / NOSRAM driver Bruno Coelho was the sensation of the IFMAR ISTC Worlds in Kissimmee, Florida. The young Portuguese came in second behind Naoto Matsukura and ahead of Ronald Völker.
  • modified and stock racing: all purpose onroad and offroad software for modified and stock classes, incl. boost 0
  • multi-mode profile adjustment: 7 fully adjustable parameters for stock and modified: auto brake, feel, torque timing, boost timing, boost angle, boost turbo, cutoff voltage
  • 7075 T6 pure aluminium case: for lowest core temperature and tough race design
  • bulletproof 6V/3A linear BEC
  • easysolder u-tab design: heavy copper, multilayer PCB for lowest resistance
  • pro-brake: new efficient and precise brake software
  • usb software updateability: benefit from all the latest performance improvements and updates available at!
  • revolutionary smart-temp-readout system 3: allows you to read out the maximum internal temperature for each the speedo and motor
  • extra small size: 32x34x21mm for easy installation in all cars
sensored brushless system yes
voltage input 3.7 - 7.4V
B.E.C. 6.0V/3.0A linear
rated current 400A/phase
case size 32 x 34 x 21mm
forward/brake yes
multi mode profile adjustment yes
3-way protection system 2 yes
smart-temp-readout system 3 yes
power wires 3.3mm˛
rec. motor limit (at 7.4V) over 3.0T
typical voltage drop @20A 0.011V/phase
weight excl. wires 40g
plugged fan yes