TopTenPick

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17.5T is the most common spec class in 1/10 electric on-road and off-road racing, where every competitor runs the same turn count so the race comes down to driving and tuning, not raw power. These are real 17.5T sensored brushless motors actually raced in that class, rather than a generic ‘brushless motor’ that doesn’t meet spec rules.

Pick 01 of 10

Hobbywing Xerun V10 G4R 17.5T

The benchmark spec motor of the last few seasons and the one most club racers are running.

• 17.5T, 3150kV
• ROAR approved
• Sensored
• G4R stator and winding

Pros

• Reduced internal resistance while staying within spec-class rules
• Better efficiency means lower temperatures over a run
• The most widely stocked spec motor, so parts and rotors are easy to find

Cons

• Now superseded by the G5, so it may be discounted or phased out

Price: $90-$130

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Pick 02 of 10

Hobbywing Xerun V10 G5 17.5T

The current-generation replacement for the G4R, with more output and less weight.

• 17.5T sensored
• About 3.9% more peak output than the G4R
• About 4% better heavy-load efficiency
• Roughly 13g lighter

Pros

• A measurable step up from the class benchmark
• Weight saving matters in 1/10 on-road

Cons

• Newest and most expensive option
• Check it is approved for your specific series before buying

Price: $110-$150

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Pick 03 of 10

R1WURKS V30 17.5T

R1’s current spec motor, ROAR approved and a favourite of tuners.

• 17.5T sensored
• 2025 ROAR approved
• R1 Brushless Motor Lab

Pros

• Strong reputation among racers who tune their own motors
• Well-supported with spare rotors and end bells

Cons

• Smaller dealer network than Hobbywing
• Premium pricing

Price: $110-$150

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Pick 04 of 10

R1WURKS V30R 17.5T

The uprated R version of the V30 – the same platform R1 fielded at the top of international competition.

• 17.5T sensored
• V30R platform
• Competition build

Pros

• Top-tier build quality
• The R platform is what R1 races at Worlds level

Cons

• Aimed at serious racers – overkill for a club runner
• Highest price in this list

Price: $130-$180

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Pick 05 of 10

Whitz Racing Products HyperSpec 17.5T

A boutique competition stock motor built around torque and cooling.

• 17.5T sensored
• Competition stock spec
• Also made in 13.5T

Pros

• Optimised for strong torque while maximising cooling
• Genuine alternative to the big two brands

Cons

• Boutique brand, so availability is patchier
• Less second-hand tuning knowledge circulating than for Hobbywing

Price: $90-$130

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Pick 06 of 10

Trinity D4 ROAR Spec 17.5T

Trinity’s mainstream spec motor and one of the most widely available ROAR-legal options.

• 17.5T sensored
• ROAR spec approved
• Part TEP1702

Pros

• Long-established brand in US spec racing
• Easy to buy from mainstream hobby retailers

Cons

• Standard build – the Certified versions are the ones matched for competition

Price: $85-$120

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Pick 07 of 10

Trinity D4 ROAR Spec Certified 17.5T

The hand-checked version of the D4 – Trinity’s ‘Certified’ units are measured and matched before they ship.

• 17.5T sensored
• Certified selection process
• Part TEP1702XX

Pros

• Takes the sample variation out of a spec motor, which matters when everyone runs the same turn count

Cons

• Premium over the standard D4 for the same nominal spec

Price: $110-$150

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Pick 08 of 10

Trinity D4 1S Certified Short Stack 17.5T

The short-stack variant, built for 1S classes where the rules and gearing differ.

• 17.5T sensored
• Short stack
• 1S specific
• Part TEP1702RXX

Pros

• Purpose-built for 1S racing rather than adapted from a 2S motor

Cons

• Only relevant if you actually race a 1S class
• Narrower availability

Price: $110-$150

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Pick 09 of 10

ORCA Blitreme 3 17.5T

A popular club-level spec motor and one of the names that comes up most in track discussions alongside the Hobbywing.

• 17.5T sensored
• Blitreme 3 generation

Pros

• Frequently run at club level, so there is plenty of setup knowledge around
• Usually cheaper than the top-tier options

Cons

• Smaller presence in the US than in Europe and Asia

Price: $90-$125

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Pick 10 of 10

ETS Coyote Stocki 17.5T

A European-series favourite that shows up regularly in club-racing recommendations.

• 17.5T sensored
• Stock class spec

Pros

• Genuine alternative if the mainstream brands are out of stock
• Well regarded in European spec racing

Cons

• Hardest of these to source in North America

Price: $90-$130

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Buying tips

• Confirm your track or series actually specifies 17.5T spec rules before buying – some clubs run 13.5T or 21.5T instead, and a motor legal for one class isn’t legal for another.
• Break in a new spec motor per the maker’s instructions before your first race – skipping break-in is a common cause of early bearing wear in these small, high-RPM motors.
• Sensored motors (all of these) give smoother low-end throttle response than sensorless – don’t mix a sensored motor with a sensorless-only ESC.
• Spec racing rules typically require the motor to stay factory-sealed – opening the can to ‘tune’ it yourself can get you disqualified at tech inspection.

As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.