The Proper Way to Modify a Motorcycle

Motorcycle modification is a special auto service where the stock setup and performance given by the bike company can be improved. Generally, riders use a new or used motorcycle for some time as it is, and then modify it based on their needs, budget, and the bike’s condition.

However, if not carefully planned, modifications can ruin the bike’s outlook, performance, and comfort. In some cases, ignoring legal aspects can even result in fines or jail. Below are the key things you must consider when modifying your bike.

Plan Your Budget

Bike modification or customization isn’t cheap. Skilled craftsmanship makes it almost an art. As the work is detailed and complex, the cost is high. Before starting, estimate how much you’ll spend and decide which upgrades to do now and which to postpone.

Sketch Your Desired Design

The biggest advantage of bike modification is creating a unique personal look. Most bikers want their style and personality reflected in their bike. That’s why exterior modifications are most common.

But sometimes the overall look doesn’t turn out well. To avoid this, experts suggest making a basic sketch of your design first. This helps you visualize and adjust anything before final modifications.

Know the Legal Rules

To ensure road safety, the Road Transport Act 2018 introduced strict rules about vehicle modifications, enforced closely by traffic police:

• You can change headlights, indicators, and visors, but not the bike’s frame shape.
• No fog lights or lights that blind other drivers.
• You can change suspension, mudguards, rim designs, or colors. Slightly different tire sizes are allowed if the rim supports it, and disc brakes can be added if missing.
• The bike’s body color must match at least 70% of what’s on the registration paper, even with wraps, stickers, or paint.
• Engine and chassis colors can change but not the actual parts. Serial numbers must remain unchanged.
• Handlebars, mirrors, footpads, and stands can be swapped.
• Fuel tank design can change, but not its size.
• Seat design and cover can be changed.
• Silencers can be customized but must not cause noise pollution. Illegal silencers may lead to fines of 15,000 BDT or jail.

In short, BRTA rules prohibit altering core specs after registration. For major changes, do them before registering the bike. After registration, only small legal modifications are allowed. Unauthorized engine or chassis swaps can lead to fines up to 300,000 BDT and jail time.

Comfort Must Not Be Compromised

Bike manufacturers design seating and ergonomics through R&D to ensure comfort. Heavy custom fittings during modification may ruin that comfort. Long rides may become uncomfortable, and the bike may lose its usability. Always keep comfort in mind when modifying.

Ensure Safety and Control

Manufacturers design bikes for balance, safety, and control. Performance upgrades may increase power, but safety features may not keep up. Always upgrade brakes, suspension, cooling, and safety systems in line with performance mods.

Keep Maintenance Simple

To maintain long-term performance, regular maintenance is essential. Keep your modifications simple and easy to service. Plan costs, design sketches, and compare parts and service prices beforehand. That way, your customized bike will be stylish yet reliable.

Best wishes on your journey of modifying your dream bike!

Frequently Asked Questions

Is custom paint illegal in Bangladesh?

No. Custom paint is allowed as long as 70% of the original registered color remains visible. Major differences make it illegal. You can also repaint before registering a second-hand bike in your name.

Will changing the silencer affect the engine?

Yes. It changes fuel consumption and exhaust emissions. If it creates loud noise, it’s also illegal. You may add custom tips for looks, but consult an engineer before a full silencer replacement.

How can I replace a faulty engine?

Ideally, replace it with the same model engine. If you want a different one, you must apply to BRTA and get approval first.

How can I increase my bike’s performance?

Performance upgrades may include:

• Improving the air intake
• Upgrading the exhaust system
• Installing a tuner or re-flashing the ECU
• Adding a new jet kit for the carburetor
• Modifying the ignition
• Adding custom parts and accessories

Are LED lights on bikes illegal?

LEDs are allowed if they don’t blind others or cause distraction. Emergency-style red-blue flashing LEDs (like on police or ambulances) are illegal for private bikes. Only indicators may blink on regular motorcycles.