NOVEMBER ’25 UPDATE: Now includes the 2-125726 High Torque Rotor.
Note: The rotor installed in the motor will not have the red dot. Only the replacement 2-125726 rotor is marked.
The R1WURKS V21-HD 17.5 was engineered through collaboration with top team drivers to deliver a stronger, more durable, race-focused powerplant. Built off the championship-proven V21-S platform, the HD version features a reinforced can and improved stator structure, offering increased durability without sacrificing speed or efficiency.
A thicker 2-piece can design and a solid, one-piece front section with removable endbell make this motor ideal for racers who want smooth power, reliability, and consistent performance run after run.
And yes — it’s ROAR Approved and ready for sanctioned racing.
Key Features
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Updated heavy-duty design for improved durability
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Stronger can and stator construction vs. V21-S
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2-piece motor design with thick front housing
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Removable endbell for easy service
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Includes 2-125726 High Torque Rotor (marked only on the spare rotor)
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Designed through collaboration with R1WURKS team drivers
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ROAR approved
Why Racers Choose the V21-HD
If you love the speed and smoothness of the V21-S but want a motor built to handle tougher conditions, higher temps, or longer race days, the V21-HD is the upgrade. It delivers reliable, repeatable power with the stronger construction serious racers appreciate.
