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Set Of Two: Motorcycle Inner Tube 2.75/3.00-21 | 80/90-21 | 80/100-21 - Tr4 Straight Valve Stem
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Vendor: Mmg
Type: Motorcycle & Scooter
Sku: WBCARB00ZPIASOA
Available: Available
Sold by Carkart, an authorized reseller.
Returns accepted within 30 days | support@carkart.com
Shipping Information
- Free Standard Shipping — United States only
- Processing Time: 1–3 business days
- Estimated Delivery: 3–5 business days after dispatch
- Double-boxed, fully insured & discreetly packaged
- Tracking number sent via email once dispatched
- Orders over $250 require signature upon delivery. Taxes calculated at checkout.
Returns & Refund
Returns accepted within 30 days of delivery.
Damaged or Defective Item
Free return shipping + replacement or full refund
Wrong Item Received
Free return shipping + replacement or full refund
Change of Mind
Return shipping at customer's expense · 25% restocking fee applies
All returns require a Return Authorization (RA) number before sending.
View Full Return & Refund Policy
⚠️ California Proposition 65 Warning :
Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
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Set Of Two: Motorcycle Inner Tube 2.75/3.00-21 | 80/90-21 | 80/100-21 - Tr4 Straight Valve Stem
$34.68
FAQs
Have a question ? We are here to help.
Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
Frequently Asked Questions
- Q: What sizes do these inner tubes fit? A: These inner tubes fit sizes two point seven five, three point zero zero, eighty over ninety, eighty over one hundred, and ninety over eighty-one tires.
- Q: What is the rim diameter for these inner tubes? A: The rim diameter for these inner tubes is twenty-one inches.
- Q: What type of valve do these inner tubes use? A: These inner tubes use a TR4 straight valve stem, designed to fit rims with a round valve base.
- Q: What materials are used in these inner tubes? A: These inner tubes are made from a thick rubber blend for enhanced durability and performance.
- Q: What is the construction style of these inner tubes? A: These inner tubes feature seamless construction for improved reliability and performance.
- Q: How do I install these motorcycle inner tubes? A: To install these inner tubes, first remove the tire from the rim, insert the tube, and ensure the valve stem fits correctly into the rim.
- Q: Are these inner tubes suitable for all motorcycle tires? A: No, these inner tubes are specifically designed for tube type tires and may not fit tubeless applications.
- Q: Can I use these inner tubes for off-road motorcycles? A: Yes, these inner tubes can be used for off-road motorcycles that match the specified tire sizes.
- Q: What should I do if I have trouble fitting the inner tube? A: If you have trouble fitting the inner tube, ensure that the correct size is being used and consult the owner's manual for guidance.
- Q: How do I care for these motorcycle inner tubes? A: To care for these inner tubes, regularly check for punctures and ensure they are properly inflated before use.
- Q: Is it safe to use these inner tubes in wet conditions? A: Yes, these inner tubes are designed for durability, but always ensure proper tire maintenance in wet conditions.
- Q: How should I store these inner tubes when not in use? A: Store these inner tubes in a cool, dry place away from direct sunlight to prolong their lifespan.
- Q: What if the inner tube arrives damaged? A: If the inner tube arrives damaged, contact customer support for assistance with returns or exchanges.
- Q: Is there a warranty for these motorcycle inner tubes? A: Yes, these inner tubes typically come with a manufacturer's warranty; check the packaging for specific details.
- Q: Can these inner tubes be returned if they don't fit? A: Yes, these inner tubes can be returned if they do not fit, provided they are unused and in original packaging.