Dyno Tune

What is a Dyno Tune?

Simply put, a Dyno Tune makes adjustments to your bike's ignition, fuel, and air supply to maximize horsepower and torque while maintaining optimal air-fuel ratio. To acheive this, we use our state of the art Dynamometer (Dyno). Before testing, your bike should be in good condition. If the tires, belt, etc. are in poor condition, they may fail, since the Dyno tests your bike at maximum output. The Dyno at St. Charles Harley-Davidson® is able to handle Trikes too!

Why Get Your Bike Dyno Tuned?

Running on our Dyno does so much more than read horsepower and torque. It can analyze your motorcycle and view fuel mixture, cam timing, clutch slippage, how loose or tight you drive chain is an whether or not it needs replacment, how your sprockets ar holding up, whether your cush drive is worn, if your fuel needle needs to be adjusted, if your bike needs a tune-up, a valve adjustment, or even if your speedometer or odometer need calibration.

How Does Dyno Tuning Help Me?

Pinpoint tuning can do several things for you and your bike.

Increase Fuel Economy

Prices at the pump are tough these days; a bike that is tuned properly can dramatically increase fuel economy.

Engine Temperature

A properly tuned engine with the correct air-fuel ratio will run cooler, last longer and will be more enjoyable to ride.

Increase Performance

Tuning your bike can squeeze out every drop of horsepower and torque locked in your bike's engine. Increases of 5 - 10 horsepower and 5 - 10 lbs. of torque are not uncommon from tuning alone.

Sign Me Up! How Do I Get My Bike Tuned?

Let our experienced tuning staff give you an evaluation today! Remember, St. Charles Harley-Davidson® also offers FREE pick up and delivery of your motorcycle! Just call 636-946-6487 or click the link above to get started today!






























*Free Dyno offer valid 2/1/19 - 2/28/19. Offer valid on Harley-Davison models 14 and later.