Can you remove the valve core on these to add sealant?

not sure why you would do that but yes.

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2-PCS 20X3.0 20X3.50 Heavy Duty E-Bike Tire Tubes 20x3.0/3.50 AV33mm Schrader Valve Premium Butyl Inner Tubes Compatible with 20 X 3.0 20 X 3.50 Electric Bike Bicycle Tubes

Product ID: 400068971

Details

Brand
YunSCM
Item diameter
20 Inches
Material
Butyl Rubber
Valve type
Schrader
Wheel size
20 Inches

⏳6-9 months air retention, 200% better seal

🚲20-inch diameter fits fat & e-bikes

🛡️40% thicker butyl rubber for max durability

188.87 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Upgrade your e-bike’s backbone with unstoppable durability!

UNIVERSAL FIT - Compatible with 20x3.0 to 20x3.5 tires, perfect for fat bikes, e-bikes, and cruisers—upgrade your ride effortlessly.
BUILT TO ENDURE - Heavy-duty 40% thicker butyl rubber resists punctures and wear for longer rides without worry.
STAY FULLY INFLATED - Advanced air-tightness technology keeps your tires pressurized for up to 9 months, slashing maintenance time.
EASY INSTALL INSPECT - User-friendly Schrader valve and water test for quick setup and peace of mind before every ride.
SMOOTH RIDE GUARANTEED - Premium shock absorption reduces road vibrations, delivering a comfortable, confident cycling experience.

These 2 premium butyl inner tubes, sized 20x3.0/3.5 with AV33mm Schrader valves, offer 40% thicker walls and 200% improved air retention over standard tubes. Designed for heavy-duty use on fat, electric, and cruiser bikes, they provide superior puncture resistance, shock absorption, and long-lasting tire pressure stability—ensuring fewer flats and smoother rides for months.

Specifications

ASIN	B0952RKJ5R
Best Sellers Rank	#17,621 in Sporting Goods ( See Top 100 in Sporting Goods ) #84 in Bike Tubes
Bike Type	Fat Bike
Brand	YunSCM
Brand Name	YunSCM
Compatible Tire Width Maximum	89 Millimeters
Compatible Tire Width Minimum	3 Inches
Country of Publication	China
Customer Reviews	4.6 out of 5 stars 1,007 Reviews
Included Components	bike tube
Item Diameter	20 Inches
Item Type Name	bike tube
Item Weight	0.8 Kilograms
Item Width	8.89 Centimeters
Item diameter	20 Inches
Item width	8.89 Centimeters
Manufacturer	YunSCM
Manufacturer Part Number	YunSCM517136
Material	Butyl Rubber
Material Type	Butyl Rubber
Model Number	GGG136
Number of Items	2
Size	20X3.0/3.5 AV
UPC	781509355432
Unit Count	2 Count
Valve Length	0.94 Inches
Valve Type	Schrader
Valve type	Schrader
Warranty Description	NO
Wheel Size	20 Inches
Wheel size	20 Inches

Reviews

C**N

Good

10.06.2026

P**E

Mon avis

Parfait

17.02.2025

C**S

Material y Calidad

No las conocía , pero me he sorprendido, excelente calidad y material , un 5 estrellas total, recomendable 100%

12.07.2026

C**R

Good stuff

Pleased with this product.

24.03.2026

C**N

Buone

Perfette per la mia bici, sembrano buone

8.09.2025

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188.87 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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