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Rapid Bike

Rapid Bike Smart2 Tuning Kit KTM 390 Duke, RC390 2024-2025

Rapid Bike Smart2 Tuning Kit KTM 390 Duke, RC390 2024-2025

SKU:K27-SMR2-013

Regular price $446.25 USD
Regular price $446.25 USD Sale price $446.25 USD
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PRODUCT DESCRIPTION

  • COMPACT DIMENSIONS FOR EASY INSTALLATION
  • WIRELESS COMMUNICATION VIA BLUETOOTH
  • TWO SIMPLE STEPS TO DISABLE THE MODULE AND BRING BACK THE MOTORCYCLE TO STOCK CONFIGURATION: A THROTTLE OPENING SEQUENCE, OR A DIGITAL SWITCH AVAILABLE THROUGH THE SOFTWARE
  • EQUIPPED WITH A STATUS LED FOR IMMEDIATE DIAGNOSIS
  • PLUG-AND-PLAY WIRING HARNESS SEPARATE FROM SMART ADD-ON MODULE
  • DEDICATED FREE SOFTWARE VERSION FOR MANAGING THE EFFECTS OF STOCK LAMBDA SENSORS' SIGNAL MODULATION

FUELING TECHNOLOGY FOR SMART RIDERS

THE NEW RAPID BIKE SMART2 ADD-ON FUELING KIT IS SPECIFICALLY DESIGNED TO IMPROVE THE PERFORMANCE OF THE NEWEST MOTORCYCLE MODELS, WHICH ARE EQUIPPED WITH HIGHLY SOPHISTICATED LAMBDA SENSORS THAT COMPLY WITH THE LATEST EUROPEAN HOMOLOGATION CRITERIA.

THIS TECHNOLOGY DIRECTLY CONTROLS THE LAMBDA SENSOR SIGNAL TO PROMPT THE STOCK ECU TO ADOPT A RICHER CARBURETION OVER THE ENTIRE DELIVERY POWER CURVE, SECURING SUBSTANTIAL BENEFITS FOR THE ENGINE'S OVERALL PERFORMANCE.

RAPID BIKE SMART TECHNOLOGY INTRODUCES AN INNOVATIVE CONCEPT OF SOFTWARE MANAGEMENT WITH USER-FRIENDLY PARAMETERS SPECIFICALLY DESIGNED TO AMPLIFY OR REDUCE THE EFFECTS OF THE STOCK LAMBDA SENSOR SIGNAL MODIFICATION.

PERFORMANCE

RAPID BIKE SMART FUELING TECHNOLOGY ALLOWS FOR ENRICHING (AFR) AIR/FUEL RATIO, AND TO OPTIMIZE INJECTION VALUES THANKS TO THE SELF-ADAPTIVE LOGIC OF THE STOCK ECU. POWER DELIVERY IS CONSIDERABLY SMOOTHER WHILE IMPROVING THROTTLE RESPONSE AND ENGINE REACTION. THE INCREASE IN TERMS OF POWER AND TORQUE IS CONSISTENT WITH THE ENGINE IN ITS STOCK CONFIGURATION. AT THE SAME TIME, THE PERFORMANCE OF AFTER-MARKET EXHAUST SYSTEMS CAN REACH A HIGHER EFFICIENCY LEVEL THANKS TO THE RICHER FUEL MIXTURE GAINED WITH THE SMART ADD-ON MODULE.

EMISSIONS AND NOISE REGULATIONS

NOTE: The California Air Resources Board ("CARB") and/or the Environmental Protection Agency ("EPA") does not permit the use of aftermarket emissions-related part(s) that alter the performance of OEM emissions-related devices unless carb has issued an Executive Order, other than on racing vehicles on closed courses. Check your local laws and manufacturer’s information. More California exhaust information is available at www.arb.ca.gov.

NOTE: Aftermarket products, including but not limited to exhausts, catalytic converters, oxygen sensors, fuel/air controller modules, air filter kits, camshafts, O2 eliminators, and carburetors and jet kits which alter, modify, or replace emission control devices or systems of an originally compliant highway motorcycle, are not legal for sale or street use in California unless they have been issued a CARB Executive Order. Aftermarket emissions-related products which have not been issued an Executive Order or which are not aftermarket Replacement Parts, as defined in Title 13, California Code of Regulations, Section 1900(b)(2), are authorized for closed circuit race use only. Products shown may be designed, manufactured, intended and sold for closed circuit race use only and use of the same on public roads or lands may be a violation of local, state and/or federal laws. See manufacturer’s information and state and local laws to determine what is authorized for your use on your vehicle.

NOTE: Products shown on our web site  may not conform to federal, state or local emissions and/or noise regulations.

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Customer Reviews

Based on 3 reviews
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Steven R.
The 390 Feels Like a Bigger Bike Now

I installed the Rapid Bike Smart2 Tuning Kit on my 2025 KTM 390 Duke, and the results exceeded my expectations. The setup was simple with the plug-and-play design, and I was up and running in under an hour without needing any special tools.

From the first ride, the throttle response felt smoother and more immediate. The midrange power especially stands out—the bike feels stronger and much more confident when accelerating or overtaking. The annoying dips in power delivery are gone, and the bike runs cleaner throughout the rev range.

What surprised me most is that the fuel efficiency didn’t take a hit, and on longer rides the bike even feels like it’s running cooler. It’s the perfect upgrade if you want your 390 Duke or RC390 to perform like a machine in a higher class without losing its reliability.

Absolutely worth it for any 390 owner looking to maximize their bike’s potential.

C
Caleb D.
Perfect Upgrade for the 390!

I put the Rapid Bike Smart2 Tuning Kit on my 2024 KTM RC390, and it completely changed the way the bike rides. The installation was simple, and the plug-and-play setup with the DTC connector made it stress-free even for someone who isn’t a pro mechanic.

Right away, I felt a difference in throttle response—much smoother and more precise. The bike pulls harder in the midrange, and the power delivery is much more linear, which makes city riding easier and highway riding way more fun. No more flat spots, just clean acceleration all the way through.

The best part is that I didn’t lose out on fuel economy, and the bike actually feels like it runs cooler on longer rides. For the price, this kit gives you serious performance gains without sacrificing reliability.

If you ride a KTM 390 Duke or RC390, this is hands down one of the best upgrades you can get.

V
Victor R.
Wakes Up the 390 Instantly

I installed the Rapid Bike Smart2 Tuning Kit on my 2024 KTM 390 Duke, and it made a huge difference right away. The install was straightforward and didn’t require any major modifications, which I appreciated.

The throttle response is much sharper now, and the bike feels noticeably stronger in the midrange. Acceleration is smoother, and the annoying flat spots are gone—it just pulls cleanly all the way through. Riding in the city feels more controlled, while highway rides are more enjoyable with the added responsiveness.

What really stood out to me is that even with the extra performance, fuel economy hasn’t dropped, and the bike runs cooler on longer trips. It’s the perfect upgrade for riders who want to get the most out of their KTM 390 without breaking the bank.

If you own a Duke or RC390, this kit is a must-have to unlock the bike’s full potential.