A wrong drive belt can overheat your engine and let your motorcycle engine work inefficiently. Harley-Davidson drive belts require replacement every 100,000 miles. So, choosing the correct drive belt size is crucial to get the most out of your motorcycle.
When choosing the replacement drive belt, you will need to consider 2 metrics: belt width and the teeth number. Harley-Davidson drive belt width range is between 1 to 1 ½”, and the number of teeth is 125 to 170 depending on the model and production year.
Continue reading this post to get the Harley Davidson drive belt size chart and find a suitable one for your HD model.
Harley Davidson Drive Belt Size Chart
Harley Davidson released several models. Such popular models are Touring, Softail, V-Rod, Dyna series, etc. I listed the drive belt length, width, front pulley, rear pulley, and tooth count based on the model and production year below.
Read them carefully for a better understanding.
| HD Model Name | Year | Length | Width | Front Pulley | Rear Pulley | Tooth Count |
| Buell (USA Models) | 1994 – 2002 | 128T | 1 1/8 inch | 27T | 61T | 128 |
| Buell (International Exports) | 1994 – 2002 | 128T | 1 1/8 inch | 29T | 55T | 128 |
| Street XG750, XG500, | 2015 – Present | 166T | 25mm | 30T | 80T | 155 |
| Street Rod XG750A | 2017 – Present | 168T | 25mm | 30T | 80T | 155 |
| XL883 | 1993 – 2003 | 128T | 1 1/8” | 27T | 61T | 131 |
| XL883 | 2004 – 2006 | 136T | 1 1/8” | 28T | 68T | 150 |
| XL883 | 2007 – 2010 | 136T | 1” | 28T | 68T | 150 |
| XL883 (USA Models) | 2011 – Present | 137T | 1” | 29T | 68T | 128 |
| XL883 (HDI International Export) | 2011 – 2012 | 137T | 1” | 29T | 68T | 128 |
| XL883 (International Export Models) | 2013 – Present | 137T | 1” | 30T | 68T | 133 |
| XL1200 (USA Models) | 1991 – 1994 | 128T | 1 1/8” | 29T | 61T | 134 |
| XL1200 (HDI International Export) | 1991 – 1994 | 125T | 1 1/8” | 29T | 55T | 134 |
| XL1200 | 1995 – 2003 | 128T | 1 1/8” | 29T | 61T | 133 |
| XL1200 (USA Models) | 2004 – 2006 | 137T | 1 1/8” | 29T | 68T | 149 |
| XL1200 (HDI International Export) | 2004 – 2006 | 137T | 1 1/8” | 30T | 68T | 149 |
| XL1200 | 2007 – 2010 | 137T | 1” | 30T | 68T | 151 |
| XL1200 (USA Models) | 2011 – Present | 137T | 1” | 29T | 68T | 139 |
| XL1200 (HDI International Models) | 2011 – Present | 137T | 1” | 30T | 68T | 139 |
| XL1200 | 2008 – 2010 | 137T | 1” | 28T | 68T | 133 |
| XL1200X | 2009 – 2013 | 137T | 1” | 28T | 68T | 133 |
| V-Rod | VRSCA 2002 – 2003 | 150T | 1 3/8” | 28T | 72T | 150 |
| V-Rod (USA Models) | VRSCA 2004 – 2006 | 149T | 1 3/8” | 28T | 72T | 150 |
| V-Rod (HDI International Export) | VRSCA 2004 – 2006 | 150T | 1 3/8” | 30T | 72T | 149 |
| V-Rod (USA Models) | VRSCB 2004 – 2005 | 149T | 1 3/8” | 28T | 72T | 149 |
| V-Rod (HDI International Export) | VRSCB 2004 – 2005 | 150T | 1 3/8” | 30T | 72T | 149 |
| V-Rod (USA Models) | VRSCD 2006 | 149T | 1 3/8” | 28T | 72T | 149 |
| V-Rod (HDI International Export) | VRSCD 2006 | 150T | 1 3/8” | 30T | 72T | 149 |
| V-Rod (USA Models) | 2007 – 2017 (All except VRSCE) | 151T | 25mm | 28T | 72T | 151 |
| V-Rod (HDI International Export) | 2007 – 2017 | 152T | 25mm | 30T | 72T | 151 |
| Dyna (USA Models) | 1991 – 1994 | 133T | 1 ½” | 32T | 70T | 133 |
| Dyna (HDI International Export) | 1991 – 1994 | 128T | 1 ½” | 32T | 61T | 133 |
| Dyna | 1995 – 1999 | 133T | 1 ½” | 32T | 70T | 133 |
| Dyna | 2000 – 2005 | 133T | 1 1/8” | 32T | 70T | 133 |
| Dyna | 2006 | 133T | 1 1/8” | 32T | 70T | 133 |
| Dyna | 2007 – 2017 | 131T | 1” | 32T | 66T | 131 |
| Touring | 1984 – 1986 | 136T | 1 ½” | 32T | 70T | 136 |
| Touring (USA Models) | 1987 – 1994 | 136T | 1 ½” | 32T | 70T | 136 |
| Touring (HDI International Export) | 1987 – 1994 | 132T | 1 ½” | 32T | 61T | 140 |
| Touring | 1995 – 1996 | 136T | 1 ½” | 32T | 70T | 137 |
| Touring | 1997 – 2003 | 139T | 1 ½” | 32T | 70T | 139 |
| Touring | 2004 – 2006 | 139T | 1 1/8” | 32T | 70T | 139 |
| Touring | 2007 – 2008 | 137T | 1” | 32T | 66T | 139 |
| Touring | 2009 – Present | 140T | 1” | 32T | 68T | 139 |
| FXR | 1984 – 1986 | 136T | 1 ½” | 32T | 70T | 130 |
| FXR (USA Models) | 1987 – 1994 | 136T | 1 ½” | 32T | 70T | 130 |
| FXR (HDI International Export) | 1987 – 1994 | 132T | 1 ½” | 32T | 61T | 130 |
| Softail | 1984 – 1986 | 132T | 1 ½” | 32T | 70T | 130 |
| Softail (USA Models) | 1987 – 1990 | 132T | 1 ½” | 32T | 70T | 132 |
| Softail (HDI International Export) | 1987 – 1990 | 127T | 1 ½” | 32T | 61T | 132 |
| Softail (USA Models) | 1991 – 1992 | 132T | 1 ½” | 32T | 70T | 132 |
| Softail (HDI International Export) | 1991 – 1992 | 127T | 1 ½” | 32T | 61T | 132 |
| Softail | 1993 | 128T | 1 ½” | 32T | 61T | 128 |
| Softail (USA Models) | 1994 | 132T | 1 ½” | 32T | 70T | 132 |
| Softail (HDI International Export) | 1994 | 128T | 1 ½” | 32T | 61T | 132 |
| Softail | 1995 – 1999 | 130T | 1 ½” | 32T | 65T | 130 |
| Softail | 2000 – 2005 | 135T | 1 1/8” | 32T | 70T | 135 |
| Softail (FLSTF, FXSTD, FLST, FLSTSC, FLST, FLSTC) | 2006 | 135T | 1 1/8” | 32T | 70T | 135 |
| Softail (FXSTB, FXSTS, FXST) | 2006 | 135T | 20mm | 32T | 70T | 135 |
| Softail (FLSTN, FXSTD, FLSTSC, FLSTC) | 2007 – 2017 | 133T | 1” | 32T | 66T | 133 |
| Softail (FXSTC, FXSTB, FXST, FLSTF) | 2007 – 2017 | 133T | 20mm | 32T | 66T | 133 |
| Softail (FLSTSB) | 2008 – 2011 | 133T | 20mm | 32T | 66T | 133 |
| Softail (FXCWC, FXCW) | 2008 – 2011 | 133T | 1” | 32T | 66T | 133 |
| Softail FXSTSSE | 2009 | 132T | 24mm | 32T | 66T | 134 |
| Softail (All except FXSE, FXSBSE, FXSB) | 2012 – 2017 | 133T | 24mm | 32T | 66T | 133 |
| Softail (FXSE, FXSBSE, FXSB) | 2013 – 2017 | 132T | 24mm | 32T | 66T | 133 |
| Softail | 2018 – Present | 134T | 24mm | 32T | 66T | 134 |
You can find the drive belt size in the user manual. Moreover, the belt size is also printed inside the fuel tank. But in case you lose the user manual or the interior surface of the fuel tank wears down, then understanding the size becomes difficult.
In such cases, I suggest you take the belt to your local Harley-Davidson store. They will help you find the correct drive belt size.
Three major parts of drive belt size include,
- Belt width
- The number of teeth in the belt
- Pulley number
Make sure the replacement drive belt size matches the above 3 factors.
How to Measure Harley Drive Belt?
Measuring the Harley drive belt is effortless to do. If you have a drive belt, follow the below methods and steps meticulously.
Method 01: Using the Current Belt
Things You’ll Need:
- White marker or a piece of chalk
- Measurement tape
Step 01: Hold the belt using one hand. Then grab the white marker or a piece of chalk and put a mark on it. The line should be thick enough for easy visibility.
Step 02: In this step, you will have to take help from a flexible measurement tape. Wrap the tape around the belt surface. Start measuring from the line you marked on the belt.
Make sure that the measuring tape tension is accurate. Also, there shouldn’t be any creases or folds to avoid discrepancies in the measurement.
Continue wrapping the measurement tape until you reach the other end.
Step 04: After wrapping the tape around the drive belt, mark the meeting point with your index finger. Next, keep the belt aside. The meeting point is the drive belt size.
Mark the point in the measuring tape or write down the measurements on a piece of paper.
Method 02: Locating the Size Using a String or Rope
Step 01: Get a piece of string approximately 4 ft. long. A rope can also be an excellent option to measure the drive belt size.
Step 02: Place one end of the string on top of the pulley. Hold the string with one hand tightly in place. This way, the string or rope cannot move when measuring.
Step 03: Hold the end of the rope against the pulley. Then bring the rope around the other pulley until it joints. Make sure to maintain the tension.
Step 04: Make a line at the meeting point on the rope or string using a marker. Finally, take off the rope from the pulley.
Step 05: Now, put the string or rope on an even surface and stretch it out. There should not be any fold in the string, and it has to be as straight as possible. Grab a measuring tape or ruler.
Then, measure the distance from the marking to the string end. This distance is the size of the drive belt.
Method 03: Belt Code Explaining
Step 01: Every Harley Davidson drive belt has a printed code. You will find the code on the belt surface labeled with white color. The code consists of a series of numbers and letters.
Step 02: A classical drive belt uses the letters A to E that specify the length and width of the belt. The belts inside the circumstances choose the codes of the classical belt.
So, to know the belt’s length, you will have to add the belt width to the circumstance measurement selected in the belt code.
Generally, the classical code can be A34, A37, E27, etc. Look at the below chart to learn how much measurement to add to the belt width.
| Prefix | Inches to Add |
| A | 2 |
| B | 3 |
| C | 4 |
| D | 5 |
| E | 6 |
For example, if the code is A37, the belt outside circumstance is (2+37)= 39 inches.
What Facts to Know About Harley Davidson Belt Drive?
The motorcycle drive system has 3 categories: drive belt, chain drive, and shaft drive.
- Shaft drives deliver power from the gearbox to the rear wheel. They require frequent maintenance. Also, shaft drives are bulky.
- A metal chain is used in chain-driven motorcycles to transfer power from the gearbox to the rear wheel.
- Motorcycles with belt drive transfer power from the gearbox to the rear wheel using a belt. They need minimal maintenance. Additionally, they let a motorcycle run smoother compared to other drive belt types. When properly maintained, a drive belt in the Harley-Davidson provides long-term service. If regular maintenance is overlooked, the belt can snap dangerously. This way, it can lead the driver to fatal injuries.
Frequently Asked Questions (FAQs)
How tight should a Harley-Davidson drive belt be?
The correct tension for a Harley-Davidson drive belt is – tight enough so that the belt doesn’t slip during startup. Check the tightness of your Harley without the tool by following the below steps.
* Grab the drive belt about an inch and a half.
* Try to twist the belt if you can. If you feel any severe resistance before twisting it about 45 degrees and can’t twist it, be sure that the drive belt is perfectly tightened.
* On the other hand, if you can twist it up to 75 to 90 degrees, then tightening the belt is mandatory.
How many miles can a Harley drive belt go?
Like all other top-rated motorcycles drive belts, the Harley drive belt needs replacement every 100,000 miles. Drive belt inspection is vital for motorcycle maintenance, and you must do it every 500 miles.
Who makes belt drives for Harley-Davidson?
Many types of drive belts are available for Harley in the market. These drive belts are only required during replacement. However, Tech Cycle Performance Products Inc. is the manufacturer of Harley-Davidson stock drive belts.
Summing Up
The drive belt is one of the essential parts of Harley-Davidson. For this reason, maintaining the correct size of this component is mandatory. The above-mentioned Harley Davidson drive belt size chart will help you find the correct one.
It would always be best to read the instruction manual before buying a replacement drive belt. Also, you can visit your nearest Harley service center to know the correct drive belt size based on your Harley model.
Remember to check the condition of your Harley drive belt periodically. A damaged drive belt will surely reduce the performance of your engine or transmission.
You Can Also Read:
- You Need This Harley Davidson Wheel Bearing Size Chart Before the DIY!
- Harley Davidson Tire Size Chart with Easy Guide!
- Who Manufactures Harley Davidson Spark Plugs?
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