HPI Savage Flux Review

HPI Racing Savage Flux HP with 2.5 GHz and GT2 Truck Body

The Hpi Savage Flux is a powerful RC monster truck, equipped with twin battery packs and the Flux Tork 220 motor. The manufacturer, HPI Racing, has also redesigned the Savage so that it’s easier to use and that’s certainly true in this case with its plug and go system. Unlike other RC trucks that have elaborate setups, the Savage just requires you to plug a couple of battery packs and it is good to go.

Aside from being easy to use though, the biggest attraction of the Savage is without doubt the speed as it can reach 62 mph, plus HPI Racing equipped the Savage with durable parts, and they’re necessary to handle the model’s powerful motor. This model is equipped with machine cut diff gears, heavy duty dogbones, steel spur gear, and all metal transmission. In addition you get dual 8mm billet motor clamps, a 3mm 7075 motor plate and 2.5mm TVP chassis plates.

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Features of the HPI Savage Flux

• One of the most anticipated features is the new 2.4GHz DSSS radio system which provides DSSS (Direct-Sequence Spread Spectrum) so there’s no fussing or crystal to get in your way. All you need to do is turn the radio on, and that’s it, no need to worry about channels and fussing around with the tuning. The Savage also provides you with custom tuning for precision control, but if you just want to race, the plug and go setup makes this possible.

• The Savage is based on HPI Racing’s Savage X chassis and comes with the Flux Tork 2200Kv motor. Rather than a large nitro engine, the Tork is low mounted, and instead of a fuel tank has the Flux Blur speedo and double battery boxes. These boxes are compatible with various types of batteries, allowing you to power this RC with dual LiPo batteries or 8-cell size for up to 3S 11.1v power.

• The Savage Flux retains the Savage X’s shock towers, durable suspension parts and diff gears. The SF-5 metal-gear servo has been ramped up for this model and as noted, the drivetrain is all metal. For all these features though, the Savage Flux is lighter than other RC trucks, enabling it to use just one nylon shock for superior traction and control.

• At the center of the Hpi Savage Flux are the Blur speedo and the Tork 2200 motor, which together make up the Flux system. The Tork 2200 has a number of impressive features including large cooling fins that resemble a genuine power plant. The motor shaft is just 5mm, making it easy to fit in HPI Racing’s optional pinion gears for even more speed or more acceleration. Design wise the Tork is just as impressive with 3mm 7075 aluminum motor plate kept secure by 8mm billet aluminum clamps. Even if there’s a lot of pull, this won’t move or budge, very impressive.

• The Savage Flux works fine on its own, but you can hook it up to your computer for even more control.

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• Top Speed: 62 mph
• Wheelbase: 13.6 inches
• Battery Rating: 5000 mAh
• Motor Type: brushless
• Motor KV: 2200
• Motor Description: Flux Tork 2200
• Voltage: 7.2 volt
• Chassis Dimensions: 21 x 16.8 x 10 inches (L x W x H)
• Chassis Weight: 17 lbs.
• Drivetrain: 4WD
• Transmission: high-low two speed
• Wheels: Chrome Warlock
• GT2 Block Tread: wheels
• Brake: electronic
• Shocks: oil filled
• Body Material: polycarbonate
• Chassis Material: aluminum
• Servo Details: 1 Servo
• Differential: front/rear independent locker

Comparison with Other RC Models

Compared to other RC trucks, the Savage is way more powerful, faster and durable. Its motor is one of, if not the most powerful available today. The brushless speed controller is more effective compared to other RC trucks, and the twin 3S LiPo batteries are more than capable of handling the 2200 motor. One of the more common complaints with RC trucks is they tend to break down easily, but thankfully the components on the Savage are as tough as the motor.

The Savage is also ahead of its competitors in the integration department, as 6mm bullet connectors keep the wiring tight so there’s loss-free linkage to the 12-gauge wiring. The Savage also has Dean’s connectors so there’s superior efficiency and zero power loss, a common problem with cheaper RC trucks. In addition, the Flux Blur speedo is equipped with a cooling fan that lets the motor run at maximum speed without overheating.


• The Savage can be fitted with 2 LiPo batteries or 16 NiMH cells
• Very fast
• Easy to control
• Durable and capable of running on different terrains


• So many features first time users might be overwhelmed with.
• Optional pinion gears have to be purchased separately.

Our Verdict

The Hpi Savage Flux is one of the few RC trucks that truly lives up to the hype. Its Flux Tork 220 motor packs a big punch and with speeds capable of reaching 62 mph, there’s not a lot to complain about. The instructions for the RC are well laid and you should have no trouble following the directions. Furthermore, it’s compatible with different batteries so that won’t be an issue either. While the chassis is similar to the other Savage models, it’s much more powerful and flexible.

The Savage’s plug and go system works without a hitch and the metal components are as durable as you’d expect. Built on the Savage X’s chassis, the Savage Flux is very durable, and the shock towers protect it from hits and bumps. If you’re looking for power and speed, you can’t go wrong with the Savage Flux. It’s not the cheapest RC in the market, but it is definitely worth every cent.

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User Rating
User rating

+ Very Fast.
+ Easy To Control.
+ Very Durable.


- Not For Beginners.
- Very Expensive.