The Maclan MRR V4 Competition Sensored Stock Motor (17.5T) represents the latest evolution in ROAR-legal stock class performance. Engineered and developed in the USA, the MRR V4 is built for racers who demand consistency, precision, and maximum efficiency on today’s high-grip tracks.
At the heart of the V4 is a redesigned ROAR-compliant stator, paired with strategically repositioned sensors that deliver smoother throttle response and improved timing accuracy. The stock version comes equipped with a High Torque rotor, providing strong punch out of corners while maintaining excellent drivability throughout the run. Optional rotors are available for racers looking to further fine-tune performance.
Designed for serious competition, the MRR V4 offers the balance, reliability, and repeatability needed to perform at the highest level of stock class racing.
Features
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Engineered and developed in the USA
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ROAR-compliant redesigned stator
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Optimized sensor placement for increased precision and smoothness
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High Torque rotor included (silver)
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Optional rotors available for additional tuning
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Built for competitive stock class racing
Specifications
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Turns: 17.5T
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Dimensions (L x D): 52 x 36mm
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Weight: 150g
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Shaft Diameter: 3.17mm
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Shaft Length: 14.0mm
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Front Bearing: R-2ZZ (9.525 x 3.175 x 3.967mm)
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Rear Bearing: R-2ZZ (9.525 x 3.175 x 3.967mm)
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Poles: 2
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ROAR Approved: Yes
Includes
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(1) Maclan MRR V4 Competition Sensored Stock Brushless Motor (17.5T)
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(1) Sensor Cable
