Listing says "standard" and "heavy duty". Which is it?????

I wondered the same, it seems to be thicker than a standard tube by a fair amount. It is a good quality tube, especially for the price.

Will this fit a mh90-21 Avon cobra chrome tire ?

Yes it will it will fit any 21inch. I have the Dunlop harley tire and it fits fine.

Where do you put the two nuts?

One nut goes at the base of the valve stem inside the wheel, the other nut should NEVER be used against the rim on the outside. It should be up against the valve stem cap.

Will this tube work for 90 / 90 - 21 ?

Yes, 2.75 / 3.00 / 21 is the same as 90/90-21

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IRC Standard Motorcycle Tube 80/100-21 HEAVY DUTY

Product ID: 24550831

Details

Brand
IRC Components
Item Diameter
21 inches
Material
Rubber
Valve Type
Presta
Wheel Size
29 inches

⚙️Reinforced valve & joint strength

🏍️Fits 21-inch wheels, perfect fit

🛡️2-3x thicker for max durability

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Description

🏍️ Ride tougher, ride longer – the heavy-duty tube that never quits!

BUILT TO LAST - Two to three times thicker than standard tubes for unbeatable durability and abrasion resistance.
TOP RATED RELIABILITY - With a 4.7-star rating from 956 riders, this tube is the trusted choice for serious motorcyclists.
IMPACT ABSORBING DESIGN - Engineered to absorb shocks and impacts, keeping your ride smooth and safe.
VALVE STRENGTH YOU CAN TRUST - Impressive joint and replacement valve strength ensures leak-free performance on every ride.
PRECISION FIT FOR 21 INCH WHEELS - Optimized for 80/100-21 tire sizes, delivering a perfect, secure fit for your motorcycle.

The IRC Standard Motorcycle Tube 80/100-21 Heavy Duty is a premium rubber inner tube designed for 21-inch motorcycle wheels. It features a valve length of 53.3 cm with a Presta valve type, and is two to three times thicker than standard tubes, offering superior durability, abrasion resistance, and impact absorption. Highly rated by users, it ensures reliable, long-lasting performance for demanding riders.

Specifications

ASIN	B0031793WA
Best Sellers Rank	#115,118 in Automotive ( See Top 100 in Automotive ) #284 in Powersports Inner Tubes
Bike Type	Motorcycle
Brand Name	IRC Components
Compatible Tire Width Maximum	3 millimeters
Compatible Tire Width Minimum	8 centimeters
Customer Reviews	4.7 4.7 out of 5 stars (958)
Item Diameter	21 inches
Manufacturer	IRC Tires
Manufacturer Part Number	T20076
Material Type	Rubber
Model Number	T20076
Number of Items	1
Size	80/100-21
UPC	182682856417
Unit Count	1 Count
Valve Length	53.3 centimeters
Valve Type	Presta
Wheel Size	29 inches

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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40003CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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3 days ago

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