The Honda CB650 is a strong and reliable motorcycle. Many riders love it because of its inline-four engine and simple frame. It is a great choice for a café racer project. This bike has been around for many years, and it still holds its value. People use it to build custom motorcycles that are both fast and stylish.
What Makes the Honda CB650 a Great Café Racer Base?
The CB650 has a 649cc inline-four engine. This engine is smooth and powerful. It has 63 horsepower at 9,000 RPM, which makes it fun to ride. The frame is strong but not too heavy. This helps when making changes to the bike.
Many riders pick this bike because of its classic design. The steel diamond frame is perfect for a café racer build. The stock suspension is good, but many people upgrade it for better handling. The engine is easy to work on, making it a great option for beginners.
The Café Racer Culture & Honda CB650’s Role
The café racer style started in the 1960s. Riders built lightweight motorcycles that were fast and simple. These bikes had low handlebars, small seats, and a sleek look. The Honda CB650 café racer follows this same idea.
Many people love the Honda CB series because it is affordable and easy to modify. The CB650 is one of the best choices for this type of project. It has the right mix of power, style, and reliability. Riders can create a unique bike without spending too much money.
This bike is also popular in the custom motorcycle community. Many workshops and builders use the Honda CB650 as their base for custom café racers. It has a rich history and a loyal following.
Honda CB650 Features and Performance
The Honda CB650 is a strong and well-built motorcycle. It has a powerful engine, durable frame, and simple design. Many riders like it because it is easy to customize.
Technical Specifications of Honda CB650
The table below shows the main features of the Honda CB650:
| Feature | Details |
| Engine Type | 649cc, inline-four, air-cooled |
| Horsepower | 63 hp at 9,000 RPM |
| Torque | 42 lb-ft at 8,000 RPM |
| Fuel System | Four carburetors |
| Transmission | 5-speed manual |
| Frame | Steel diamond frame |
| Front Suspension | Telescopic forks |
| Rear Suspension | Dual shocks |
| Front Brakes | Single disc |
| Rear Brakes | Drum brake |
| Weight | Around 215 kg (dry) |
Strengths & Weaknesses for a Café Racer Conversion
The Honda CB650 has many good features. It also has some areas that may need upgrades.
Strengths
- Reliable engine. Runs well for many years with good care.
- Strong frame. Easy to modify for a café racer build.
- Smooth power delivery. Good balance between speed and control.
- Classic design. Looks great with café racer modifications.
- Affordable. Lower price than many other café racer base bikes.
- Good aftermarket support. Many parts available for customization.
Weaknesses
- Stock suspension feels soft. Upgrades needed for better handling.
- Braking system is basic. Front and rear brakes may need improvement.
- Carburetors need tuning. Can be tricky to adjust for better performance.
- Stock weight is a bit high. Reducing weight makes the bike faster.
- 5-speed gearbox instead of 6-speed. Works well but limits top speed.
The Honda CB650 café racer is a great project bike. It has a strong base, but some parts need upgrades for better speed, handling, and looks.
How to Build a Honda CB650 Café Racer: Step-by-Step Guide
A café racer build needs a clear plan. The Honda CB650 is a good base, but it needs the right parts and changes. Good planning saves time and money.
Setting a Vision for Your Custom CB650
A café racer has a low, sleek, and lightweight design. The Honda CB650 café racer should have a simple frame, custom seat, and performance upgrades. Before starting, it helps to decide on a clear style.
Some popular styles include:
- Classic café racer – Low handlebars, short seat, round headlight
- Modern café racer – LED lights, digital speedometer, custom fairings
- Minimalist design – No extra parts, raw metal look, simple paint
A clear goal helps in picking the right parts.
Budgeting & Sourcing Parts
Building a café racer can be cheap or expensive. A budget helps to stay on track.
Main Costs
| Part | Estimated Cost |
| Used Honda CB650 | $1,500 – $3,500 |
| Café racer seat | $100 – $300 |
| Handlebars | $50 – $150 |
| Rearsets (footpegs) | $100 – $250 |
| Exhaust upgrade | $150 – $500 |
| Carburetor tuning kit | $50 – $200 |
| Suspension upgrade | $200 – $800 |
| Paint job | $200 – $600 |
| LED lights | $50 – $200 |
Where to Buy Parts
- Online stores – Websites like eBay, Amazon, and specialty bike shops
- Motorcycle salvage yards – Used parts at low prices
- Local motorcycle shops – Good for custom seats, handlebars, and wiring
- Motorcycle forums – Riders sell or trade parts in online communities
The Honda CB650 café racer build needs the right parts. Buying quality parts helps the bike last longer and perform better.
Honda CB650 Café Racer Customization Process
Building a Honda CB650 café racer requires the right steps. The bike must be stripped down, modified, and upgraded. Each part should match the café racer style while improving performance.
Stripping Down & Frame Modifications
The stock frame is too long for a café racer. The subframe must be cut and shortened. A new seat loop should be welded for a clean look. Removing extra parts like the rear fender, stock seat, and large side panels makes the bike lighter.
The stock handlebars are too high. Replacing them with clip-ons or clubman bars lowers the riding position. The stock footpegs are too far forward. Installing rearsets moves them back for a proper café racer stance.
Engine & Performance Upgrades
The Honda CB650 engine is strong but runs better with upgrades. A free-flowing exhaust improves power and sound. A 4-into-1 exhaust system makes the bike lighter and gives a deep, aggressive tone.
The carburetors must be tuned to match the new exhaust. Installing larger jets and pod air filters helps the engine breathe better. Cleaning and syncing the carburetors improves throttle response.
A lithium-ion battery is smaller and lighter than the stock battery. Moving it under the seat keeps the frame clean. Replacing the stock wiring harness with a simplified one removes unnecessary wires.
Suspension & Handling Improvements
The stock front forks are too soft. Upgrading to progressive springs or swapping the front forks for modern upside-down forks improves handling. The rear shocks should be replaced with adjustable ones for better comfort and control.
The brakes on the Honda CB650 are weak. Upgrading the front brake with a larger disc and a twin-piston caliper improves stopping power. A steel-braided brake line makes braking more responsive.
Aesthetic & Styling Choices
The seat is one of the most important parts of a café racer build. A flat, leather-covered seat gives the bike a classic look. The fuel tank should have a clean shape with no dents. A custom paint job adds personality to the bike.
The headlight should be small and round. Many builders use LED headlights for a modern touch. The speedometer should be compact and minimal. A single-gauge speedometer keeps the bike clean and simple.
Electrical & Wiring Overhaul
The stock wiring harness has many extra wires. A simplified wiring harness removes everything not needed. A solid-state regulator/rectifier helps prevent electrical issues. Installing push-button ignition makes starting the bike easier.
Using LED lights reduces power draw. A small taillight and bar-end turn signals complete the look. Many builders hide the battery and electronics under the seat to keep the frame clean.
The Best Honda CB650 Café Racer Builds to Inspire Your Project
Many builders have transformed the Honda CB650 into stunning café racers. These bikes stand out because of their clean design, upgraded performance, and unique details.
“Leatherhead” CB650 Café Racer by Oscar, Sweden
This 1981 Honda CB650 was rebuilt from the ground up. The builder focused on handmade details and a clean look. The frame was modified to fit a custom leather seat. The fuel tank was reshaped for a sleeker design.
A 4-into-1 exhaust system improved power and sound. The wiring was simplified, and the battery was hidden under the seat. The result was a lightweight and aggressive café racer with a classic touch.
“Portia” by Thrive Motorcycles
This 1980 Honda CB650 café racer was built by a professional custom shop. The bike was stripped down to the bare frame. A handmade tail section gave it a unique look. The front forks were upgraded for better handling.
The engine received a custom exhaust and carburetor tuning. The stock gauges were replaced with a small digital speedometer. Every detail was carefully designed to fit the classic café racer style.
“Pitbull” by AMS Garage
This build took the Honda CB650 café racer style to the next level. The builder focused on performance and speed. A lowered front suspension and rear-set footpegs improved the riding position.
The engine was fully rebuilt for more power. The air filters were upgraded, and the exhaust system was custom-made. The result was a fast and lightweight machine with a strong café racer feel.
What Makes These Builds Stand Out?
- Custom frames for a sleek and low stance
- Upgraded suspension for better handling
- Handmade seats with high-quality leather
- Simplified wiring for a clean look
- Performance exhausts for better sound and power
Each build shows what is possible with the Honda CB650 café racer. With the right parts and effort, any CB650 can become a unique and powerful machine.
How to Maintain and Take Care of Your Honda CB650 Café Racer
A Honda CB650 café racer needs regular care. A well-maintained bike runs better, lasts longer, and stays safe to ride.
Essential Maintenance Tips
Keeping the engine, brakes, and electrical system in good shape prevents problems. Regular checks help avoid costly repairs.
- Change engine oil every 3,000 to 4,000 miles for smooth performance.
- Clean and sync carburetors to keep fuel flow steady. Dirty carburetors cause rough idling and poor acceleration.
- Check spark plugs and replace them if they look worn or dirty.
- Inspect the chain for tightness and lubrication. A dry or loose chain wears out faster.
- Test the brakes for wear. Brake pads and fluid should be changed when needed.
- Check tire pressure before every ride. Low pressure affects handling and safety.
- Look for oil leaks around the engine and seals. Fix small leaks before they get worse.
- Keep the battery charged and check the wiring for loose connections.
Storing Your Honda CB650 Café Racer Properly
Long storage periods can cause issues. Proper storage keeps the bike in good condition.
- Use a motorcycle cover to protect against dust and moisture.
- Fill the fuel tank and add a fuel stabilizer to prevent rust inside.
- Keep the battery on a trickle charger if the bike is not used for months.
- Lift the tires off the ground or move the bike often to prevent flat spots.
Finding Replacement Parts & Upgrades
Parts wear out over time. Finding Honda CB650 café racer parts is easy with the right sources.
- Online stores sell new and used parts for custom builds.
- Motorcycle salvage yards have affordable used parts.
- Local custom shops can help with seat upholstery, frame work, and wiring.
- Rider forums and groups often have people selling or trading parts.
Taking care of a Honda CB650 café racer keeps it running strong. A clean and well-maintained bike lasts longer and gives a better riding experience.
Connect with the Honda CB650 Café Racer Community
A Honda CB650 café racer is more than just a motorcycle. It connects riders who share the same passion for custom builds and classic design. Being part of this community helps with learning, finding parts, and getting inspiration.
Best Online Forums & Social Media Groups
Riders from all over the world share their Honda CB650 café racer builds online. They post photos, give advice, and help each other solve problems.
- Honda CB650 forums have discussions about upgrades, maintenance, and tuning.
- Café racer Facebook groups allow members to buy, sell, and trade parts.
- Instagram and YouTube feature builds, how-to videos, and real riding experiences.
Attending Motorcycle Shows & Café Racer Events
Meeting other riders in person is a great way to learn more. Many cities have motorcycle meetups and café racer shows. These events showcase custom bikes, new parts, and industry experts.
- Custom bike shows display well-built café racers for inspiration.
- Local motorcycle meetups bring riders together to share tips and experiences.
- Riding events and rallies allow riders to enjoy long-distance trips with others.
Further Reading & Learning Resources
Improving a Honda CB650 café racer requires the right knowledge. Many riders share books, guides, and tutorials that help with customization.
- Workshop manuals explain how to repair and upgrade the bike.
- Online tutorials show step-by-step café racer builds.
- Experienced builders share tips on forums and social media.
Joining the Honda CB650 café racer community makes the journey easier. Riders share ideas, solve problems, and celebrate the café racer culture together.
Final Thoughts on Building a Honda CB650 Café Racer
A Honda CB650 café racer is more than a motorcycle. It is a mix of style, speed, and personal touch. This bike is a great choice for riders who want a custom build with classic café racer looks.
Why the Honda CB650 is the Right Choice
This bike has the right balance of power and design. The 649cc inline-four engine is reliable and smooth. The steel diamond frame is strong and easy to modify. The classic round headlight and slim fuel tank give it the right look for a café racer build.
The aftermarket support makes it easy to find parts. Riders can upgrade the suspension, brakes, and exhaust without spending too much. The bike is also affordable compared to other vintage models.
Steps to a Perfect Honda CB650 Café Racer
A well-planned build makes a big difference. Each part must match the café racer style and improve performance.
- Strip down the frame and remove extra parts for a clean look.
- Modify the subframe and install a café racer seat.
- Upgrade the suspension for better handling.
- Improve the brakes for safer rides.
- Tune the carburetors and upgrade the exhaust for more power.
- Simplify the wiring and install LED lights.
Riding a Honda CB650 Café Racer
This bike is made for fast city rides and weekend trips. The low handlebars, rear-set footpegs, and light frame give it a sporty feel. The deep exhaust sound and smooth power delivery make every ride exciting.
A Honda CB650 café racer is a mix of performance and personality. It stands out on the road and gives a unique riding experience.
FAQs
What is a Honda CB650 café racer?
A Honda CB650 café racer is a custom motorcycle based on the Honda CB650, modified for a sleek, minimalist look. The bike has a low riding position, lightweight frame, and upgraded performance parts.
How do I start a Honda CB650 café racer project?
The first step is getting a Honda CB650 in good condition. After that, stripping unnecessary parts, modifying the subframe, installing clip-on handlebars, and upgrading the exhaust and suspension help transform the bike into a true café racer.
What are the best exhaust options for a Honda CB650 café racer?
A 4-into-1 exhaust system is the most popular upgrade. It improves performance, weight reduction, and sound quality. Many riders prefer stainless steel or custom-welded exhaust pipes for a more aggressive tone.
Can a Honda CB650 café racer be used for daily riding?
Yes, but it depends on the modifications. A properly tuned Honda CB650 café racer can handle daily riding, but the low handlebars, firm suspension, and minimalist seat may not be as comfortable as a stock setup.
What are the most common problems with a Honda CB650 café racer?
Carburetor tuning is one of the biggest challenges. The Honda CB650 café racer also needs stronger suspension, upgraded brakes, and a better wiring system to perform well. Rust on old frames and worn-out electrical components can also cause issues.
How much does it cost to convert a Honda CB650 into a café racer?
A basic conversion can cost around $2,000 to $4,000, depending on parts and labor. A high-end build with custom suspension, engine tuning, and premium parts can exceed $6,000.
What are the best handlebars for a Honda CB650 café racer?
Clip-on handlebars are the best choice for a Honda CB650 café racer. They create a low, aggressive riding position that improves handling. Clubman bars are another good option for those who want a classic café racer look with slightly better comfort.
What is the best rear suspension upgrade for a Honda CB650 café racer?
Adjustable twin rear shocks improve the ride quality. Many builders replace the stock shocks with high-performance gas shocks for better stability. Some riders also swap the front forks for modern upside-down forks to enhance handling.
How can I reduce the weight of my Honda CB650 café racer?
Removing unnecessary parts like stock fenders, airbox, and heavy exhaust components helps reduce weight. Installing lightweight aluminum or fiberglass bodywork, a smaller battery, and a minimalist wiring harness makes the bike even lighter.
Where can I buy parts for a Honda CB650 café racer?
Parts are available through online motorcycle stores, eBay, local salvage yards, and custom shops. Many builders also find unique components from motorcycle forums and rider groups that specialize in café racer builds.
How does the Honda CB650 compare to other Honda models for a café racer build?
The Honda CB650 is a great base for a café racer, but other Honda models like the CB750, CB550, and CB350 are also popular choices. The CB750 has a larger inline-four engine with more power, making it a good option for speed. The CB550 is lighter and easier to handle, while the CB350 is smaller and ideal for a vintage-style café racer. The CB650 offers the perfect balance of power, weight, and affordability, making it a top pick for many builders.
