Dunlop K990 Tires are special-edition, lightweight dirt bike tires sized for smaller, lighter electric motorcycles like the Surron, Talaria, E-Ride, 79Bike Falcon and Ventus. They fit within narrow swingarms and forks, and their low weight helps minimize range and power loss. The K990 is the lightest 18" and 21" tire available for your electric dirt bike.
✅ CHOOSE THE RIGHT SIZE FOR YOUR WHEEL
Select the size that matches your wheel. The last number in the tire size is the wheel diameter in inches (for example, 90/100-18 fits a 18" wheel). The easiest way to be sure is to check the sidewall of the tire currently on your bike.
Available sizes:
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70/100-21: 21" front wheel (6.3 lbs)
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90/100-18: 18" rear wheel (8.5 lbs)
Not sure which size your bike uses? Email support@tbelectricmoto.com with your bike model and we'll tell you the right front and rear sizes.
Why Riders Choose the Dunlop K990
- Sized specifically for lighter electric dirt bikes and e-motos
- Narrow profile fits within slim e-bike swingarms and forks
- Extremely lightweight: 6.3 lbs (21" front) and 8.5 lbs (18" rear)
- Less rotating weight helps preserve range and power
Frequently Asked Questions
How do I know what tire size I need?
Look at the sidewall of your current tire or your wheel. The last number in the size is the wheel diameter, so the 70/100-21 fits a 21" front wheel and the 90/100-18 fits an 18" rear wheel. If you're unsure, email us your bike model and we'll confirm.
Will the Dunlop K990 fit my Surron or Talaria?
The K990 is sized for lighter electric dirt bikes like the Surron, Talaria, E-Ride, 79Bike Falcon and Ventus, as long as your bike is running 21" front and/or 18" rear wheels. Check your wheel size before ordering.
How much do the K990 tires weigh?
The 70/100-21 front weighs about 6.3 lbs and the 90/100-18 rear weighs about 8.5 lbs.
Why does tire weight matter on an electric dirt bike?
Lighter tires reduce rotating weight, which helps with acceleration, handling and battery range.
Is this sold as a single tire?
Yes, each listing is for one tire in the size you select.
How fast does this ship?
In-stock orders ship from TB Electric within 24 hours, Monday through Friday.
