Size --21 Protaper PTR SMX 04 Motorcycle Tires
Filter
Compare tires at a glance using our easy test score® system. Our proprietary algorithm factors in performance, expert insights, user reviews, and Uniform Tire Quality Grading (UTQG) scores.
Four criteria factor into easy test score®
-
Consumer reviews
Research based on customer reviews and buying behavior
-
Treadwear
The lifespan of a tire based on wear performance
-
Traction
The ability of a tire to grip to the road in wet conditions
-
Expert ratings
Input from veteran tire industry experts
Select your vehicle
Make
Model
Year
Style
Zip code
Confirm your tire size
Where do I find my tire size?
- Sidewall of your current tire
- Inside frame of your driver's door
- Your owner's manual
Still unsure which to select?
Enter your zip code to get best shipping and installation options:
Continue without your zip code
Select your tire size
Width
Ratio
Diameter
Zip code
Enter your zip code to get best shipping and installation options:
Continue without your zip code
