Harley Davidson drive belts are an essential part of the engine of your motorcycle. The belt size will determine the amount of power transferred from the engine to the rear wheel.
An excessive small belt can slip and cause the engine to overheat. If the belt is too large, it can cause the engine to work harder than necessary and decrease fuel economy.
Hence, it is essential to know the Harley Davidson belt size chart. It ensures proper upgradation of the motorcycle if you want. Also, it will help in better maintenance and engine efficiency.
Usually, two metrics are used to determine the replacement belt for an HD bike: number of belt teeth and width. The teeth number depends on the motor of the bike. The number remains within the 125-170 range. On the other hand, the width of a drive belt remains within the 20mm (almost 2/3”) to 1-1/2” range.
Knowing the rear wheel pulley size, you can figure out the most suitable belt for your bike. Higher tooth count on rear pulleys may require a matching belt with a higher tooth count, matching the perimeter and overall length. I suggest you continue reading the post to know more about the Harley drive belt size chart.
Importance Of Knowing The Harley Davidson Drive Belt Size Chart
Finding the correct size belt for your Harley Davidson motorcycle is necessary. The incorrect size belt can cause damage to the engine or transmission. When you install an improper belt drive for the engine, it puts pressure on the transmission system. As a result, the engine will lose efficiency. It further results in increased fuel costing. Thus, you must install the right belt with accurate size to propel the perfect engine transmission.
The belt size is listed in the owner’s manual of the motorcycle. You can also find the belt size on the label inside the fuel tank. However, at times you may lose the manual. Similarly, the label on the fuel tank can wear out and become unreadable.
If you are unsure of the size belt you need, you can take the belt to a local Harley Davidson dealer. The dealer can measure the belt and help you find the correct size belt for your motorcycle. The belt drive size includes three main parts. These are:
- Width of the belt
- The number of teeth the belt has
- The number of pulleys on it
Thus, the belt size of your Harley must match these three factors for the belt drive.
Drive Belt Size Chart Of Harley Touring Series
The touring series is the most popular of all HD motorcycles. Its belt drive starts at 24mm and continues to expand to 1-1/2 inches.
| Model Name | Production Year | Width of Belt | Number of Teeth | Pulleys |
| ALL Touring models | 2015-2020 | 24mm | 140 | 32/68 |
| ALL Touring models | 2009-2014 | 1″ | 140 | 32/68 |
| FLHT/R/X, FLTR | 2007-2008 | 1″ | 137 | 32/66 |
| FLHT, FLHR, FLTR | 2004-2006 | 1-1/8″ | 139 | 32/70 |
| FLT, FLHT, FLHR | 1997-2003 | 1-1/2″ | 139 | 32/70 |
| FLT, FLHT | 1985-1996 | 1-1/2″ | 136 | 32/70 |
Drive Belt Size Chart Of Harley Softail Series
The Softail models have maximum variations in the belt size. Thus, finding the right belt drive for your HD Softail can be a challenging task at times.
| Model Name | Production Year | Width of Belt | Number of Teeth | Pulleys |
| ALL Softails Models | 2018-2020 | 24mm | 134 | 32/66 |
| Softail, FXST, FLS, FLST | 2012-2016 | 24mm | 133 | 32/66 |
| FXST/B/C, FLSTF, FLSTSB | 2007-2011 | 20mm | 133 | 32/66 |
| FLST/C/N, FLSTSC,FXSTD, FXCW/C/, FXS | 2007-2011 | 1” | 133 | 32/66 |
| FXST | 2006 | 20mm | 135 | |
| FXST | 2000-2005 | 1-1/8″ | 135 | 32/70 |
| FLST | 2000-2006 | 1-1/8″ | 135 | 32/70 |
| FXST, FLST | 1995-1999 | 1-1/2″ | 130 | 32/70 |
| FXST, FLST | 1994 | 1-1/2″ | 132 | 32/70 |
| FXS, FLST | 1993 | 1-1/2″ | 128 | 32/61 |
| FXST, FLST | 1986-1992 | 1-1/2″ | 132 | 32/70 |
| Breakout FXSB | 2014-2017 | 1-1/2″ | 132 | 32/66 |
| Breakout FXSB, FXSB 103 | 2014 | 24mm | 132 | 32/64 |
Drive Belt Size Chart Of Harley Sportster Series
The Sportstar series is a compact yet power-packed motorcycle from Harley. Its belt width starts at 1” which is much wider than other models. The number of teeth for the belt drive varies between 128-137. You need to check this teeth numbers and belt width carefully.
| Model Name | Production Year | Width of Belt | Number of Teeth | Pulleys |
| XL 883L, XL 883N, XL 1200C, XL 1200TXL 1200XS XL 1200NS, XL 1200X | 2008-2020 | 1″ | 137 | 29/6830/68 |
| XL, 883 | 2011-2014 | 1″ | 137 | 32/66 |
| XL, 883 | 2007-2010 | 1″ | 136 | |
| XL, 1200, XR, 1200 | 2007-2014 | 1″ | 137 | 32/66 |
| XL, 1200 R/C | 2004-2006 | 1-1/8″ | 137 | 29/68 |
| XL, 883, 883C | 2004-2006 | 1-1/8″ | 136 | 28/68 |
| XL | 1991-2003 | 1-1/8″ | 128 | 29/61 |
Drive Belt Size Chart Of Harley V-Rod Series
The V-rod is mostly limited edition. Its belt width for the drive system varies from 1 inch to 1-3/8 inches. We have researched deeply but couldn’t find the pulleys it requires. So, it is better you contact a Harley mechanic for the best findings.
| Model Name | Production Year | Width of Belt | Number of Teeth | Pulleys |
| VSRC | 2007-2017 | 1″ | 151 | N/A |
| VRSC | 2004-2006 | 1-3/8″ | 149 | N/A |
| VRSC | 2002-2003 | 1-3/8″ | 150 | N/A |
| VRSCR | 2007 | 1-3/8″ | 149 | N/A |
Drive Belt Size Chart Of Harley FX/FXR/FXD/FLD/Dyna Series
The Dyna models use 1 inch to 1-1/2 inches belt width mainly. The teeth number varies from 131 to 133 which is pretty identical.
| Model Name | Production Year | Width of Belt | Number of Teeth | Pulleys |
| ALL Dyna Models | 2007-2017 | 1″ | 131 | 32/66 |
| FXD, FXDWG | 2000-2006 | 1-1/8″ | 133 | 32/70 |
| FXD, FXDWG | 1991-1999 | 1-1/2″ | 133 | 32/70 |
Drive Belt Size Chart Of Harley Street series
All Harley street models have 1” belt. So, you don’t need to think about belt width too much here.
| Model Name | Production Year | Width of Belt | Number of Teeth | Pulleys |
| XG500, XG750 | 2015-2020 | 1″ | 166 | N/A |
| XG750A | 2017-2020 | 1″ | 168 | N/A |
Facts You Should Know About Harley Davidson Belt Drive
There are three motorcycle drive systems: shaft drive, chain drive, and belt drive.
- Shaft drives use a drive shaft to send power from the gearbox to the rear wheel. While being heavy and requiring more maintenance, they are also more substantive.
- Chain-driven motorcycles use a metal chain to transfer power from the gearbox to the rear wheel. Belt-drive motorcycles use a belt to do the same thing.
- Belt-drive motorcycles require less maintenance and run smoother than their chain-driven counterparts.
Drive belts require replacement periodically. However, if well maintained, they can last for a long time. They can be damaged by road debris. So, they can be brittle and lose their teeth if you do not care for them. Some unexpected cases may cause the belt to snap badly, leading to injuries or total power loss.
Conclusion
It is crucial to maintain the components of your Harley Davidson motorcycle. It includes the drive belt. The drive belt should be inspected regularly and replaced when necessary. A worn or damaged drive belt can cause damage to the engine or transmission.
To know the suitable drive belt, you should recall the Harley Davidson drive belt size chart well. It will help the bike distribute power well and make your trip better and more comfortable.