Royal Enfield Bullet: Engine & Tyre Upgrades

The Royal Enfield Bullet is an iconic motorcycle, renowned for its timeless design and distinctive thumping sound. For many riders, owning a Bullet is not just about transportation; it's about experiencing a piece of history. Over the years, Royal Enfield has continued to evolve this classic machine, introducing upgrades while striving to maintain its essential character. This article delves into two significant areas of interest for Bullet enthusiasts: the engine and tyre modifications.

The Evolution of the Royal Enfield Bullet Engine

For a remarkable 55 years, the Royal Enfield Bullet remained powered by a consistently reliable engine. However, the demands of modern motorcycling, including stricter emissions regulations and the desire for improved performance, necessitated an update. In a significant move, Royal Enfield collaborated with AVL, an Austrian company respected for its expertise in powertrain systems, to develop a new engine for the Bullet. This partnership ensured that the new powerplant would not only meet contemporary standards but also integrate seamlessly with the Bullet's heritage.

This new engine represents a substantial leap forward, offering enhanced efficiency, cleaner emissions, and potentially improved performance characteristics. While the exact specifications and performance gains can vary, the introduction of a new engine designed with modern engineering principles marks a new chapter for the Royal Enfield Bullet. It’s a testament to Royal Enfield's commitment to keeping its beloved motorcycle relevant and enjoyable for a new generation of riders, without alienating its loyal fanbase.

Customising Your Royal Enfield Bullet: A Case Study

Modifying a motorcycle is a personal journey, allowing owners to tailor their ride to their specific preferences and aesthetic desires. One owner of a 5-year-old Royal Enfield Bullet Machismo A350 embarked on a significant customisation project, sharing their experience to provide insights for others considering similar alterations. The goal was to enhance the bike's 'killer looks' and riding experience.

The Modification List: A Comprehensive Overview

The undertaken modifications aimed to transform the appearance and handling of the Bullet. The specific changes included:

• Tyre Upgrade: Replacing the rear tyre with a wider, 15-inch variant.
• Custom Seat: A bespoke seat designed for improved comfort and aesthetics.
• Custom Mudguard: A specially crafted mudguard to accommodate the wider tyre and complement the new look.
• Wider Handlebar: A broader handlebar for a different riding posture and control.
• Removal of Rear View Mirrors: A stylistic choice, though often impractical for road use.
• Removal of Rear Indicators: Another aesthetic decision that may impact road legality and safety.
• Silencer Change: Replacing the stock silencer with a 'Goldie' (Goldstar) custom silencer for a distinct exhaust note.

The Process and Costs: A Mechanic's Perspective

The work was carried out by a mechanic named Salim in Bangalore, and the process took approximately 30 days to complete. The total bill amounted to Rs. 19,735 after a discount and credit for old parts. Here's a breakdown of the expenses:

The owner acknowledges that some friends found the cost high, but given the lack of time for personal research and parts sourcing, trusting the mechanic was the chosen path. The decision to modify often involves a trade-off between cost, time, and personal satisfaction.

The Aftermath: Performance and Handling Adjustments

While the visual impact of the modifications was significant, there were also notable changes in the bike's performance and handling. It's crucial for potential modifiers to be aware of these potential drawbacks:

• Reduced Power and Acceleration: The wider tyres and other modifications can sometimes lead to a decrease in the bike's power delivery and acceleration. This is often due to increased rolling resistance and potentially altered gearing.
• Decreased Mileage: Similar to the reduction in power, the increased effort required to move the heavier, wider tyres can also result in lower fuel efficiency.
• Tyre Rubbing Issues: A common problem after fitting wider tyres is the risk of the tyre contacting the mudguard, especially when going over bumps. This can cause irritating noises and requires adjustments. In this case, hardening the rear shock absorbers and increasing the bike's height was necessary.
• Handling in Traffic: Wider handlebars, while potentially offering a more commanding riding position, can make navigating through tight traffic more challenging.
• Chain Noise: Removing the chain cover to accommodate wider tyres and a custom swingarm can expose the chain, leading to increased noise and potential for debris ingress.
• Decompression Cable Removal: The wider handlebar necessitated the removal of the de-compressor cable, which is used to ease starting the engine.

The Verdict: Was it Worth It?

Despite the challenges and potential performance compromises, the owner expresses immense satisfaction with the outcome. The wider handlebar is described as "fun," and the new, wider tyre has reportedly increased stability. The owner prioritises the enhanced riding experience and the improved aesthetic over the introduced problems. The custom "Goldie" silencer has also reportedly improved the Bullet's iconic beat. The positive attention from onlookers and requests for test rides suggest that, for this owner, the risk and effort were indeed worth it.

Minor Additions and Contact Information

Following the initial major modifications, the owner also made a few minor additions:

• Fitted small front indicators.
• Fitted chrome plated handle weights.
• Re-fitted a de-compressor cable (presumably after adjusting for the handlebar).

For those interested in similar customisations or seeking advice, the mechanic's details are provided:

SaleemSS Bullet Clinic
#4, 16th Main, HAL 2nd Stage
Bangalore - 560038
Mobile: +91-9845717976
Location Landmark: Near Domlur. Opposite to United Colors of Benetton showroom in 100ft Road, Indiranagar.

Frequently Asked Questions

Q1: Does the Royal Enfield Bullet have a new engine?
Yes, after 55 years, the Royal Enfield Bullet introduced a new engine designed and developed in conjunction with AVL, an Austrian powertrain systems company.

Q2: Is it advisable to change the tyre size on a Royal Enfield Bullet?
Changing tyre size can enhance aesthetics and stability, but it may also affect performance, mileage, and require other modifications like mudguard adjustments. It's a personal choice that depends on your priorities.

Q3: What are the potential downsides of fitting wider tyres?
Potential downsides include reduced power and acceleration, decreased mileage, the tyre rubbing against the mudguard, and potential chain noise if covers are removed.

Q4: How much did the modifications cost?
In the provided case study, the comprehensive modifications cost approximately Rs. 19,735.

Q5: Can I fit a wider handlebar on my Bullet?
Yes, a wider handlebar can be fitted, but it may impact maneuverability in traffic and might require other adjustments, such as relocating or removing controls like the de-compressor cable.

Q6: What is the benefit of a custom silencer?
A custom silencer, like the 'Goldie' mentioned, typically alters the exhaust note, often making it deeper and more resonant, contributing to the bike's character and sound.

Q7: Where can I get modifications done in Bangalore?
SaleemSS Bullet Clinic in Bangalore, located near Domlur, is mentioned as a place that undertakes such customisations.

In conclusion, the Royal Enfield Bullet continues to be a platform for personalisation. Whether you're interested in the factory-fresh performance of a new engine or the unique character that custom modifications can bring, the Bullet offers a rewarding experience for its riders. Always ensure that any modifications comply with local regulations and consider the potential impact on safety and performance.