Ride Safe: A Tire Tale from Chariots of Fire Customs, LLC

Ah, the aroma of fresh rubber tires—a scent that signals safety and adventure on the open road. Here at Chariots of Fire Customs, LLC, we’re gearing up for the riding season by stocking the best motorcycle tires available.

Tires aren’t just rubber hoops; they’re your bike’s lifeline, ensuring a smooth and secure ride. But as you rack up the miles, those trusty treads undergo wear and tear, influenced by your riding style and road conditions. Some riders effortlessly glide through miles while others wear their tires down faster than a Sunday ride burns through fuel.

When it comes to handling and performance, your motorcycle’s tires set the tone for your journey. Worn-out tires can drastically alter your bike’s feel, increasing the risk of losing control and turning your thrill ride into a white-knuckle ordeal. So, let’s dive into the nitty-gritty of tire care—whether you’re a DIY enthusiast or prefer the hands of a seasoned pro.

Pressure Check: Inflate for Success

Don’t play guessing games with tire pressure—it’s a matter of safety. Fluctuations in weather and riding duration can mess with tire pressure, impacting your bike’s performance. Take a moment to gauge both tires’ inflation levels accurately. No, a kick won’t cut it!

Inspect for Embedded Dangers

A quick scan of your tires could mean the difference between a smooth ride and a blowout disaster. Look out for embedded nails, shards of glass, or signs of wear like tread separation or bulging. Don’t gamble with tire safety.

Tread Talk: Where the Rubber Meets the Road

Worn tread spells trouble, signaling the end of your tire’s useful life. Keep an eye out for smooth patches or wear bars—it’s a clear sign your tires are on their last legs. And remember, a penny’s depth can reveal if it’s time to part ways with your trusty treads.

Decode the DOT: Age Matters

Check the DOT number on the sidewall.  The last four digits are the only ones you need to concern yourself with.  How do you decipher these numbers?  For example, 0218 means that the tire was manufactured in the 2nd week of 2018.  Tires older than five years need to be replaced no matter how good they may look.  Reasons: tire deterioration starts from the inside out because of moisture from compressed air and temperature variation. Also, tire rubber gets harder with age and does not have the same traction as when new. This means wet riding is compromised when taking off and stopping power is not as good. Look at the tire tread closely as it will show you whether cracks have begun forming because of aging.

When to Seek the Pros

Tire talk can be tricky, especially with the many compounds out there. When in doubt, trust the experts to guide you. Swing by our shop during March for exclusive deals on tires. Get a grip on safety with 20% off all Dunlop and Metzler tires while stocks last!

Don’t leave your safety to chance—ensure a smooth ride with top-notch tires from Chariots of Fire Customs, LLC. Your adventure awaits!

Evolution of Horsepower: A Look at Engine Upgrades Over the Years

By Jan Knobbe

As we step into the new year, it’s fascinating to reflect on the remarkable technological journey in engine upgrades since our establishment in 2005. Over the past 19 years, the advancements have been nothing short of extraordinary.

Fifteen years ago, our focus was on twin cam and evo engines. Upgrades involved meticulous valve jobs and hand porting, transforming 88 cubic inch motors into 96 or 96 into 103 cubic inches. Significant builds then pushed the boundaries, reaching 110 to 117 cubic inches.

Fast forward to today, and we find ourselves working with twin cams and M8s. Modern upgrades now encompass CNC porting of heads, air research benches for precise airflow analysis, installation of big valves, and the integration of four-valve heads. The evolution of cam shaft technology is particularly noteworthy. Today’s cam shafts enhance airflow, leading to superior cooling of exhaust chambers, resulting in increased horsepower and reduced octane detonation.

In just five years, M8s have undergone substantial improvements, featuring two over and four over valves, coupled with CNC ported heads. This configuration nearly doubles the airflow in factory heads. The M8’s single cam design significantly reduces drag on the cam chest, freeing up horsepower in stark contrast to factory twin cams. Standard M8 upgrades range from 107 cubic inches to 124 cubic inches and 114/117 cubic inches to 128 cubic inches, creating reliable daily drivers. For the more adventurous, major engine upgrades can top out at 175 cubic inches.

To put this progress into perspective, consider that years ago, an 88 cubic inch motor built up to 96 might generate around 95 horsepower. Today’s factory motors, at 107 and 114 cubic inches, produce 100 horsepower. Pushed to 175 cubic inches, they unleash a staggering 200+ horsepower at the ground. For the true gearheads, there are additional options like pro chargers and turbochargers.

The evolution of motors is a perpetual journey, always seeking smarter ways to boost horsepower. At Chariots of Fire Customs, we take pride in staying at the forefront of these advancements.  Such as our drag racing endeavor in our early years to now racing in the bagger class at local tracks in order to put effort into finding even more horsepower.  Thus ensuring that our knowledge aligns with the latest market offerings. Our commitment is to provide the best possible service to our customers, tailoring each upgrade to individual needs.

If you’re contemplating changes to your machine’s heart (don’t just put in stents), come and have a chat with Jan. Discover what modifications will work best for you. Reach out to us at (636) 462-1648.  Let’s make this year a horsepower-packed adventure for your ride!

Unleashing the Beast: Powering Up Your Motorcycle for Maximum Performance

If you’re a motorcycle enthusiast seeking to squeeze every ounce of power from your ride, you’re in the right place. There are various strategies to boost your motorcycle’s horsepower, and in this blog, we’ll explore four top-notch options that can transform your bike into a true powerhouse.

1. Exhaust and Air Intake Upgrades:

One of the most popular and effective ways to enhance your motorcycle’s performance is by upgrading the exhaust system and air intake. After-market exhaust systems reduce back pressure, making it easier for the engine to receive oxygen. This increased airflow leads to more power at the wheels and can even improve fuel economy. Investing in a high-quality exhaust and air intake system not only adds horsepower but also gives your bike a more aggressive and throaty sound.

2. Cams for Increased Power:

Cams, or camshafts, play a crucial role in determining engine performance. Upgrading your motorcycle’s cams can significantly boost horsepower by increasing cylinder pressure as the engine’s RPMs rise. The scavenging effect from precise valve timing and overlap in the cam enhances cylinder pressure, resulting in a power-packed performance. Before choosing a cam upgrade, consider your riding style and preferences, as different cam profiles cater to various RPM ranges.

3. Increasing Cubic Inches:

If you’re looking for a more radical approach to power enhancement, increasing your engine’s cubic inches is the way to go. There are two primary methods for achieving this: boring and stroking. Boring involves increasing the cylinder diameters, while stroking involves increasing the crankshaft stroke. Both methods result in a larger engine displacement, leading to more power. However, it’s essential to consult with professionals to ensure that your motorcycle can handle the increased stress and heat generated by the larger engine.

4. Dyno Tuning for Peak Performance:

To optimize the newfound power from your modifications, a dyno tune is crucial. A dyno tune involves adjusting various parameters such as fuel and ignition timing to ensure maximum performance, durability, and reliability. This process also helps diagnose any potential issues in the drivetrain. The dyno graph provides a visual representation of your motorcycle’s performance, allowing for fine-tuning and adjustments to achieve peak power. A proper dyno tune ensures that your motorcycle runs efficiently, avoiding issues like fuel wastage or performance limitations.

In conclusion:

Don’t leave the performance of your beloved ride to chance. Our team of professionals understands the intricacies of motorcycle upgrades, ensuring that every modification is tailored to your bike’s specifications. From exhaust and air intake upgrades to cam enhancements and engine displacement adjustments, we’ve got you covered.

2002 Big Dog

Mileage: 20605

Engine CI: 107 Cubic Inch

Transmission: 5 Speed

Paint Color: Black

Accessories: Custom Center Dash, Custom Flame Mirrors, Custom Grips, 2 in 1 Exhaust, Dash Bag, Front Tire M8 90/21, Rear Tire 230/16/15

Price: $8500 OBO

For More Information call Jan At: (636) 462-1648

Engine Upgrades Then & Now

by Jan Knobbe
Going into the new year, we thought it would be interesting to look at how far technology has come over the years we have been upgrading engines. We opened in 2005, and a lot has changed over the past 18 years!

Fifteen years ago we were working on twin cam and evo engines. Engine upgrades often included valve jobs and hand porting. We took 88 cubic inch motors to 96 cubic inches or 96 cubic inches to 103 cubic inches. Big builds then produced 110 cubic inches to 117 cubic inches.

Now we are working with twin cams and M8s. Engine upgrades often include CNC porting of heads; air research benches to see what the air flow is; big valves and four valve heads. Technology in cam shafts have progressed. Cam shafts now allow more air in and out of cylinders causing much better cooling of exhaust chambers which then increase horsepower with less octane detonation.

M8s have come a long way in five years with two over and four over valves along with CNC porting heads. This allows almost doubling what the air flow is in the factory head. With the M8 cam configuration of a single cam there is less drag on the cam chest which allows freeing up of horsepower very different from the factory twin cam. M8 standard upgrades are 107 cubic inches to 124 cubic inches and 114/117 cubic inches to 128 cubic inches. These upgrades are dependable daily drivers. We know this because we have modified our personal bikes. Major engine upgrades can exceed 155 cubic inches.

Years ago 88 cubic inch motors were built up to 96 making maybe 95 horsepower. Now factory motors are 107 cubic inches and 114 cubic inches making 100 horsepower. When built up to 155 cubic inches they make 200 horsepower at the ground. There are also pro chargers and turbo chargers available for you gear heads.

The evolution of motors is never ending. There are always better and smarter ways of gaining horsepower. We are proud of our efforts to stay current and knowledgeable about what is out on the market so that we can continue to provide the best possible service to our customers. We work with each individual customer to fit their needs.

If you’re interested in making some changes, come talk to Jan to see what modifications will work for you and your machine. Call us at 636-462-1648 and ask about our January engine upgrade specials.

Rev Up Your Ride: Now Is The Perfect Time For Projects 

The days are shorter, and there’s a crispness in the air that signals the arrival of winter. While many motorcycle enthusiasts may be stowing their bikes for the season, for those with a yearning for adventure and a passion for their ride, this is the perfect time for some exciting winter projects. Whether you’ve been dreaming of an engine rebuild, new handle bars, suspension, wheels or an exhaust upgrade, now is the time to make those dreams a reality. And to sweeten the deal, we’ve got some exclusive specials of the month to make your winter motorcycle projects even more enticing.

Why Winter is Ideal for Big Motorcycle Projects

1. Engine Rebuilds: The Heart of the Ride

Your motorcycle’s engine is its heart, and a winter engine rebuild is like a revitalizing winter’s nap for your beloved machine. We can unlock hidden power, improve performance, and enhance reliability. We can meticulously disassemble the engine, inspect every component, and make necessary replacements or upgrades. When spring comes, you’ll be hitting the road with a rejuvenated engine that’s ready to roar.

2.  Customize your ride with new handlebars, suspension or wheels.  Comfort is the name of the game for long distance riding.  As you plan your dream vacation for next riding season now is the time to think about what will make the ride comfortable.  Getting your handlebars to the perfect height for comfort in the arms and shoulders is one area.  Handlebars can also change the look of the bike.  So many choices!  We can help you choose the right fit with a style that works for you.  The right suspension can also make the difference between a comfortable ride with a relaxed back at the end of a long day of riding versus an achy back or jarred neck.  Our vendors are always coming out with new wheel designs.  Come see us to change the look of your ride.  Anyone of these upgrades can work wonders making your motorcycle feel like a brand new ride come spring.  

3. Upgrade Exhaust: Performance and Sound

The exhaust system of your motorcycle not only influences its performance but also contributes to its unique sound. An upgraded exhaust can make a significant impact in both areas. While your bike is safely stored away for winter, you have the freedom to research and choose the perfect exhaust system. Whether you’re looking for a throaty roar or a sleeker look, this project can be completed in time for the riding season.  Come see us to help you choose the best exhaust system for your riding style.

Exclusive Specials of the Month

As if the prospect of these exciting winter projects weren’t enticing enough, we’re offering some exclusive specials of the month to make your winter motorcycle endeavors even more appealing:

– 15% Off Battery Tenders: Keep your battery in prime condition during the off-season and ensure your bike starts effortlessly when spring arrives.

– 29 Point Check with Stabilizer for $29.95: Get peace of mind with a comprehensive 29-point check, including stabilizer, at an unbeatable price.

– 29 Point Check with Oil Change for Most Models – $159.99: For most motorcycle models, we’re offering a comprehensive 29-point check along with an oil change, all for an incredible price.

– Free Towing for Service Work: When your bike needs service work, we’ve got you covered. Enjoy the convenience and peace of mind with our free towing service.  Now through March first.

Conclusion: Turn Dreams into Reality

Don’t let your motorcycle hibernate this winter. Embrace the season and turn your dreams into reality. Whether it’s an engine rebuild, new handlebars, suspension, wheels or an exhaust upgrade, winter is the ideal time for these transformative projects. Plus, with our exclusive specials of the month, there’s no reason to delay. Call us today and start gearing up for a thrilling spring ride on your freshly rejuvenated, upgraded motorcycle. Winter has never looked this exciting for riders!

Get the Wobble Out

by Jan Knobbe


Does you bike have a wobble? Is it scary to ride? Make ya nervous? Can you turn in one direction better than the other? There are multiple areas on the bike to look into in order to determine how to fix this issue. One of the main reasons is because the alignment is most likely off. Harley Davison’s are known to come off the assembly line with the alignment off. It may be off just a bit, but it will get
worse over time and put wear and tear on other parts of the motorcycle. The reason they are off is because all of them are heavy on the left side of the motor. Think about it. The primary and swing arm are all one unit and where do they sit? On the left side.

Neck bearings and swing adjustments can also cause a speed wobble. More commonly know as the “death wobble”. This is due to the bearing not being tight enough allowing it to rock back and forth within the neck. All bikes 2014 and later do not have a specified torque for the neck which makes this more common. One of the issues we are finding more often is the rear axle alignment not being set
properly. With the new eccentric style axles, the parts seem to have excessive wear or to wear out completely which causes the rear wheel to be misaligned. This leads to the bike “dog walking”.

Additionally, as you put more and more miles on your bike the rear swing arm bushings will get worn. When this happens, it allows play in the swing arm in a side-to-side motion. This is more commonly felt when you hit a bump going around a turn (think about hwy 70 and hwy 61 overpass). As bearings get worn you’ll notice the rear shocks over working. This will feel like bottoming or topping out, but in actuality it could be the bearings and not the shocks. One more area to look at. Be sure to have your front forks properly serviced and aligned in order to keep your front suspension tracking properly. When the oil
breaks down it dampens at different rates and allows one shock to dampen faster than the other leading to a wobble in the front end. Misaligned forks can also have the same effect.

Next time you are out enjoying your ride, think about the above. If you are experiencing any sort of wobble, when is it happening? How, exactly does it feel? When does it happen? In the turns; at higher speeds; when you hit a bump? Make a mental note or write it down. That way when you come by to ask us to fix you bike our technicians have an understanding of what to look at. We want your riding experience to exhilarating and fun and most importantly, safe.