Chip tuning for AJS Model 31 power unit – on our site you will find the best spare parts and accessories for cars and motorcycles

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Chip tuning for AJS Model 31 power unit

Before purchasing our products, it is advisable to read the product sheet. If in doubt, do not hesitate to contact us, we will be happy to help you choose the product that best suits your needs

If you are looking for high quality products for your car or motorbike, look no further. We are sure you will find the perfect product for you at Racext. Do not hesitate to contact us with any questions or requests. We are here to help you make your vehicle perfect.Chi tuning for AJS Model 31

Improving performance on the motorcycle AJS Model 31 , until recently, was an expensive and difficult to reverse operation, with the entry on the market of the specific module for AJS Model 31 , things have changed, in fact this add-on module for AJS Model 31 allows us to increase power and torque (depending on the model and condition of the vehicle).

You have a perceived increase in power and therefore your AJS Model 31 will be smoother with better acceleration and if it does not have the results you want you have 14 days of guaranteed return

The Additional ECU for AJS Model 31 can be used in conjunction with an existing ECU remapping on your bike and will not delete the existing remapping. It can also be used with our or any tuning box and other engine hardware modifications.

With the module for AJS Model 31 you will not need a modification to the clutch

Increase the performance of the motorcycle AJS Model 31

ECU Mapping Kit AJS Model 31

30-DAY MONEY-BACK GUARANTEE 

For all Racext performance modules, we offer a clear and transparent return policy: you have 30 days from the date of receiving the product to request a return. The return period does not account for shipping times—the 30 days start only when the product arrives at your doorstep.

Questions About Returns? We've Got the Answers!

• Do I need to provide a reason for the return?
  Absolutely not! If the product doesn't meet your expectations or doesn't work as desired, we will refund 100% of the amount spent.
• What if the module doesn't work on my vehicle?
  We understand that technology isn't always perfect. If, for any reason, the module doesn't work on your vehicle, you can easily return it within the 30-day period.
• Can I return the module even if I just wanted to try it out?
  Certainly! We offer 30 days with no need for explanations. If you decide the product isn't right for you, simply return it.
• What condition should the product be in for a return?
  The product must be returned in its original condition, with all accessories and packaging intact. Light usage is acceptable if necessary to test the product.
• How can I initiate the return process?
  Contact our customer service with your order number, and we will guide you through the simple return process.
• When will I receive my refund?
  Once we receive the returned product, we will process your refund within 5 business days. The refund will be issued to your original payment method.
• Are there any hidden fees or restocking charges?
  Absolutely not! We offer full refunds with no hidden fees or additional charges.

Your satisfaction is our priority!

DETAILED INSTALLATION INSTRUCTIONS & PERSONALIZED SUPPORT

At Racext, we understand that every motorcycle is unique, and so are the people who ride them. While we provide comprehensive installation instructions with each of our chip tuning devices, we recognize that these guidelines may not always be sufficient due to the wide variety of vehicle brands and models and the different technical backgrounds of our customers.

That’s why we go beyond standard instructions to offer personalized, one-on-one support—completely free of charge.

ONE-ON-ONE SUPPORT FROM OUR EXPERT MECHANICS

To ensure a quick, safe, and accurate installation, we provide direct assistance from our experienced mechanics. This support is available via email or chat, giving you flexibility to choose the communication method that works best for you.

Here’s what our personalized support includes:

• Step-by-step guidance: Our mechanic will walk you or your trusted mechanic through the installation process, ensuring every step is clear and simple.
• Photo-based assistance: Send us photos of your setup, and our experts will identify the exact wire where the chip tuning device should be connected, ensuring precise and secure installation.
• Real-time troubleshooting: Encountering issues during installation? Our team will provide immediate solutions to prevent mistakes and optimize the setup.

CONFIGURATION & PERFORMANCE OPTIMIZATION

Installing the device is only the first step. To ensure it performs at its best, we guide you through the configuration process:

• 200 km Configuration Period: After installation, your vehicle must be driven for at least 200 km to allow the ECU to adapt to the new settings.
• Post-installation adjustments: If performance isn’t meeting expectations, our mechanics will assist you in fine-tuning the device settings to achieve optimal results.
• Efficiency support: In rare cases where the device may not initially deliver the desired improvements, we’ll help you adjust it to ensure maximum efficiency.

At Racext, we believe in more than just selling high-quality products—we’re committed to providing exceptional, personalized support so every rider gets the most out of their chip tuning device. Whether you're a seasoned mechanic or a first-time tuner, we’re here to make the process smooth and successful.

Questions About Returns? - 30-DAY MONEY-BACK GUARANTEE VIDEO

How Long Does Shipping Take? And What If I Change My Mind?

https://youtu.be/SKZaRc_tl2A

What kind of support does Racext offer for installing chip tuning modules?

CHIP TUNING FOR AJS Model 31

We recommend that you start using the additional module for AJS Model 31 with the knob set to minimum and gradually increase the knob until you find the setting that is best for your bike. Slightly modified bikes (sport exhaust, air cleaner etc) generally have better performance with the ring set around the midle if the bike has an aftermarket.

Processing AJS Model 31

When the catalytic converter has been removed. The original standard performance will be at the minimum value on the ECU.

If the AJS Model 31 during execution is too rich, then the setting must be set between litle and then minimum.

You will feel the performance of the bike when the engine is running smoothly, no need to do a Dyno test.

Chip tuning for AJS Model 31

WARNING Please avoid falling into the trap of thinking that the higher the set value, the better the performance.

If it appears that you are losing torque when you get to high speeds this probably means that the ECU value has been set too high and you need to try a lower value.

This is another reason why it is best to start with a low level and gradually raise the knob to the maxmimum setting.

To mount the module on your AJS Model 31 you will need to locate the air temperature sensor (IAT) which is located near the airbox on most motorcycles.

Disconnect the connectors that are already connected to the IAT and fasten the module connectors for AJS Model 31 to the corresponding connector of the IAT using the branch terminals which make the operation extremely quick and simple. The Upgrade Kit AJS Model 31 is now ready for use.

You do not find your motorcycle in our catalog, contact us one of our operators will evaluate the best solution to your needs

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RACEXT QUALITY GUARANTEE

Every Racext performance product is thoroughly tested and guaranteed, even if it doesn’t feature a visible logo. Due to production and logistical reasons, some products may not carry the Racext branding directly on the item.

However, rest assured that all our products undergo rigorous quality checks and are backed by Racext’s commitment to performance and reliability.

EXCLUSIVE MANUFACTURING AND DISTRIBUTION

Our trusted partners manufacture each product according to our specific technical requirements, ensuring that every item meets Racext’s high standards. All our products are exclusively sold by Racext and are not distributed by other companies.

Even though some of our partners commercialize similar products for cars, these items are not compatible with motorcycles due to distinct resistance and amperage requirements.

PRECISION-CALIBRATED CHIP TUNING DEVICES

When it comes to our chip tuning devices, the resistance is precisely calibrated to be perfectly adapted to different vehicles, such as motorcycles. This ensures optimal performance, compatibility, and a smooth ride without any risk to your vehicle’s electronic systems.

Racext chip tuning devices are specially designed to meet the unique demands of motorcycle performance systems, guaranteeing that your bike runs efficiently and reliably.

QUALITY STANDARDS ACROSS ALL PRODUCTS

This high standard of exclusive design, manufacturing, and compatibility applies to all Racext products available for purchase. Every item in our catalog is crafted with the same dedication to performance, safety, and quality.

PERFORMANCE YOU CAN TRUST, QUALITY YOU CAN SEE

Disclaimer 

TRANSPARENT SHIPPING POLICY

Cutoff time 22:00 (GMT+01:00) Central European Standard Time (Amsterdam)
Order Processing Time 1-3 days (Mon-Fri)
Delivery time 3-6 days (Monday-Friday)

Our orders are free of shipping costs.

We use the following shipping couriers:

• PostNL
• Dhl
• UPS
• DPD
• Cainiao

The customer will receive the tracking information in 1-3 days directly in his email. Please contact us if you have not received the email or check your spam emails

LEGAL DISCLAIMER: PRODUCTS INTENDED EXCLUSIVELY FOR SPORTING AND COMPETITIVE USE

Important: Before proceeding with the purchase or use of our sport exhausts, please read the following notice carefully.

The products sold through this website are intended exclusively for sporting and competitive use. This means they have been designed and manufactured to be used in controlled environments, such as closed circuits or areas designated for sporting competitions, where emission and noise regulations may differ from those applied on public roads.

Public Road Use Not Allowed: It is emphasized that the installation and use of these devices on vehicles intended for circulation on public roads may not be permitted under the laws of your reference country regarding emission and noise regulation, as they are not designed for road use but for sporting use.

Buyer’s Responsibility: It is the buyer’s responsibility to ensure that the use of the purchased products complies with all applicable laws and regulations. The buyer assumes all legal liabilities for any non-compliant use of the products, including the installation and operation of such devices on unauthorized vehicles or in ways that violate applicable laws.

By continuing with the purchase, the buyer acknowledges and agrees that the use of the products is limited to sporting and competitive contexts as defined above and assumes full responsibility for any legal consequences arising from improper use of the products.

Chip tuning for AJS Model 31 power unit

Compatibility:

It is the responsibility of the customer to ensure that the product is compatible with their vehicle. We recommend consulting with a professional mechanic before purchasing to confirm compatibility. Racext is not responsible for any issues that may arise from the use of our products, including but not limited to damage to the vehicle or personal injury.

Warranty:

All of our products come with a 2-year warranty in accordance with international standards. If you experience any issues with your product within the warranty period, please contact us for assistance. The warranty does not cover damages caused by improper installation, misuse, or external factors such as accidents or natural disasters.

Returns

ABOUT US

ADDRESS: Creative Tower – Hamad Bin Abdulla Road – Office 4201 – Fujairah – U.A.E.

E-mail : info@Racext.com

Contact form : Get in touch

Phone : +971 58 859 1706

Company name : Digitanow International group FZe

Company Number : AE18048/2020

Tax registration number: AE18048 2020

Customer service : Monday to Friday from 9 a.m. to 8 p.m.

Terms and Conditions

This website provides only the product with well-indicated codes and specifications. Please rely on an experienced workshop for the installation and choice of the product. We do not assume any responsibility for errors in choice, installation, or programming of the devices.

*The price is intended for a single product

*Days are always working days

All guides on this website are for illustrative purposes only. For many products, the use of special tools may be necessary. We always recommend seeking the advice of a specialized repair center for the selection and installation or programming of products purchased anywhere. We do not assume any responsibility for damage to property or persons, or user errors in the application of a guide on this website or for any other occurrence.

Product is not original but fully interchangeable with it

All rights reserved. All trade names and logos are registered trademarks of the respective manufacturers indicated

The trademarks mentioned on this site are the exclusive property of the automotive companies and are used here exclusively to facilitate the search for vehicles by our customers. We do not assume any responsibility for damages to property or persons, or user errors in the application of a guide on this website or for any other occurrence.

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When making purchases on our website, you can be confident that your transaction is secure. All financial transactions are processed on the secure and certified servers of PayPal or Stripe. These platforms allow us to accept payments from all VISA, VISA ELECTRON, MAESTRO, POSTEPAY, AMERICAN EXPRESS, AURA, and DISCOVER credit cards.

Quality Guarantee

Choose safety, savings, and professionalism by choosing us. We offer top-level customer support that will never leave you alone during the pre- and post-purchase phases. We offer top-quality products and intelligent, secure savings. Don’t trust inexperienced sellers.

NOTE: In the event that the product is not available in stock, we reserve the right to issue a full and immediate refund.