Viper R/C VST17.5 ROAR Spec Brushless Motor (17.5T)

Viper R/C
This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
Low Price: $69.99
Discontinued Online
This is the Viper R/C "VST" 17.5 Turn, 1,900kV ROAR Spec Brushless Motor. From onroad, to offroad, to the rocks, no matter where you drive, Viper R/C has a motor for your application. Ready to run, is not always good enough. You want your car ready to race, with the power, control and reliability to win. Quality craftsmanship, superior materials and a commitment to rigorous testing are at the heart of Viper R/C Solutionsí product philosophy, so your VST motor not only gets you running, but keeps delivering the power you need to get the most out of your RC car in even the most demanding conditions.

Viper R/C Solutionsí VST series sensored brushless motors offer smooth and efficient performance, durability, versatility and quality. The VST series motors features high precision ball bearings for superior performance, longer life and a re-buildable design. Plus, five optional tuning rotors (not included) offer a wide range of tuning options, allowing you to get the most out of your motor. A precision machined 6061 T6 billet aluminum ribbed can is designed to provide the best protection and cooling, while the ultra low resistance, high current soldering tab system provides trouble free connections and easy wiring.

Engineered, built and tested to meet the needs of even the most demanding 1/10 scale RC car applications, Viperís VST series brushless motors provide the smoothest power band and reliable performance for your 1/10 scale RC car.


  • High grade copper solder tabs
  • Lightweight design
  • High grade components throughout!
  • Ribbed Can adds valuable cooling surface area
  • Sealed Can adds longevity and durability
  • Molded timing cap protects sensor board and lightens motor
  • Fully adjustable timing
  • ROAR legal
  • Laser engraved, no stickers
  • 5 optional high performance rotors
  • 180 day warranty
kV: 1,900        
Case Length:
2.12 in. (53.80mm)
Case Diameter:
1.42 in. (36.00mm)
Shaft Length:
2.6 in. (13.8mm)
Shaft Extension:
0.58 in. (14.8mm)
6.35oz (180g)

This product was added to our catalog on January 6, 2011.

Keith Strmiska
Monday, Jan 31 2011 (about 6 years ago)
Viper R/C VST17.5 ROAR Spec Brushless Motor (17.5T)
When I was in the market for an electric motor I was very hesitant to purchase something new on the shelf. I talked to people at the track about what they thought were good motors, but the only responses I could gather were those of brand loyalists. I'm not sure if Viper has been around anywhere else in the RC community, but I thought I'd go out on a limb and try one of the 9.5T motors. For one thing the manufacturer warranty is great, the packaging was tidy and clean, no bent up wires or anything loose in the box. This motor is not only beautiful on the outside, but just as beautiful on the track. I have it hooked up to an LRP ESC and the throttle is smooth, powerful, and responsive. This is a great motor at a great price and I would recommend this to anyone who is really on the fence about what to buy.)
Monday, Jan 31 2011 (about 6 years ago)
Viper R/C VST17.5 ROAR Spec Brushless Motor (17.5T)
Had the opportunity to race some Indoor Off-Road this weekend with my new Viper VST 17.5, and I must say I'm impressed!

I ran the "Open" Stadium Truck class running the 17.5 (with a Tekin RS esc) against the Mod motors and I was less than a second of the "TQ", who was running a 8.5mod.

Allot of torque and I was able to gear higher than I had with previous 17.5 motors.)
Miles Rosser
Verified Owner
Wednesday, Apr 17 2013 (about 4 years ago)
Viper R/C VST17.5 ROAR Spec Brushless Motor (17.5T)
I run this in my SC10. At the moment I have it paired with an old Mamab Max Pro I had laying around and this motor handles the highest timing setting the mmp has and does not go over 120F. Im actually on here to buy another Viper motor for modified racing, Im going to go with the 7.5t but so far this 17.5 has been awsome!!)
Keith Fulk
Tuesday, Feb 1 2011 (about 6 years ago)
Viper R/C VST17.5 ROAR Spec Brushless Motor (17.5T)
I haven't had a chance to put a lot of time on my 10.5 but with a 23 tooth pinion in my 44.1 the motor is fast. I didn't have my temp gun so I don't know
how much it heats up or even if I'm in the right area in gearing... The stock timing is advanced already so make sure you are aware of that...

The 44.1 is pulling the front end off the ground without issue... so will have to play with gearing...)