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Nosram PURE Evo SpecRacing 10.5T Brushless Motor NR91831

Prepare yourself for the next evolution in brushless spec racing technology! Based on years of experience and racing success, NOSRAM has designed a spec racing brushless motor that is based on the already legendary and World Championship winning PURE Evolution modified platform that combines X-treme power with perfect controllability!

Together with the new “Easy-Tech” features, the PURE Evo SpecRacing motors is the perfect combination of top class brushless motors and fair racing for controlled stock racing!

  • HDS Technology: High Density Short stack for highest power output
  • New StockSpec Magnet: High strength sintered 12.45mm magnet with maximum dimension allowed by the rules for maximum performance
  • PreciSensorTM System: Revolutionary precise sensor positioning for best power, throttle and efficiency. Fully adjustable and replaceable.
  • Reproducible Timing: Timing adjustable in clearly defined, reproducible steps with the new molded timing inserts for same result every time.
  • Dismountable – Machined 7075-T6 aluminium can, short/lightweight design and maximum airflow
  • Easysolder Design: Heavy cooper, multilayer PCB for lowest resistance.
  • Oversized Ball Bearings: Oversized ball bearing for highest performance and durability.




  • Turns:  10.5T
  • RPM @ 7.2v:  25.920
  • Spec. kv Power:  3.600
  • Power @ 7.2v:  306W
  • Efficiency @ 7.2v:  92%
  • Magnet material:  Sintered 12.45mm SpecRacing Rotor



Nosram PURE Evo SpecRacing 10.5T Brushless Motor NR91831

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Was: £87.99
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Technical Specifications
Manufacturer: Nosram
Part Number: NR91831
Motor Brush Type: Brushless
KV Rating (Brushless): 3001 - 4000kv
Motor Class: Modified
Motor Size: 540
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