These are the stock tire sizes that came on the CB450 / CL450 / CB500T family of motorcycles.
CB450 K0 - K2
- Front: 18 x 3.25"
- Rear: 18 x 3.50"
CB450 K3 - K7
- Front: 19 x 3.25"
- Rear: 18 x 3.50"
CL450
- Front: 19 x 3.25"
- Rear: 18 x 3.50"
CB500T
- Front: 19 x 3.25"
- Rear: 18 x 3.75"
Can I run larger tires?
Yes, you can run larger tires, however not all tire sizes will fit. Every manufacturer and tread design will be slightly different and the only way to know if an alternate size will fit is to try them on the rim. For tires we sell, this has been done this already for you so be sure to check the tire sizing chart in the description. On that chart we break down the tire sizes and treads we sell that will fit on your stock CB450 / CL450 / CB500T motorcycle.
What about modern tire sizes?
There are many helpful conversion sizes online that will help you change the vintage stock sizes to the equivalent modern sizes that you will find on the shelf today. For the tires we sell, modern sizes are listed in the compatibility chart in the description so you know what will fit on your stock CB450 / CL450 / CB500T motorcycle.