Parts Unlimited Heavy Duty Inner Tube for 21" Rims

Ensure maximum durability and reliability for your off-road adventures with the PARTS UNLIMITED heavy duty 21 inch inner tube. Engineered to withstand the toughest conditions, this robust inner tube provides superior protection against punctures and pinching, keeping you riding with confidence.

Description

The PARTS UNLIMITED heavy duty inner tube is meticulously crafted for the demanding environment of off-road motorcycle riding. Featuring an impressive 2.8mm to 3.0mm thick natural rubber construction, it offers significantly enhanced resistance against punctures, pinches, and impact damage compared to standard tubes. This premium natural rubber also boasts a very high tear strength, ensuring long-lasting performance even in aggressive terrain. Designed specifically for 21" rims, this versatile inner tube is suitable for both front and rear mounting positions, accommodating a wide range of tire sizes including 2.75-21, 3.00-21, 80/100-21, 90/100-21, 90/90-21, and 100/80-21. The integrated TR-4 (Round Base) valve stem, a center metal valve with threading and nuts, provides a secure and reliable air seal, essential for maintaining optimal tire pressure during intense rides. Invest in this durable motorcycle off-road inner tube to elevate your bike's resilience and enjoy uninterrupted trail time.

Features & Highlights

• Exceptional Puncture Protection: Built with a substantial 2.8mm to 3.0mm thick rubber, this inner tube offers superior defense against punctures and pinching, minimizing flats on challenging off-road trails.
• High Tear Strength Natural Rubber: Constructed from premium natural rubber, it delivers outstanding tear resistance, ensuring long-term durability and reliability under extreme stress.
• Optimized for Off-Road Performance: Specifically designed to meet the rigorous demands of off-road use, providing enhanced resilience and peace of mind on rough terrain.
• Secure TR-4 Valve Stem: Equipped with a robust TR-4 (Round Base) center metal valve stem with threaded nuts, guaranteeing a dependable air seal and easy inflation.
• Wide Compatibility for 21" Rims: Perfectly fits 21" rims and a variety of common tire sizes (2.75-21, 3.00-21, 80/100-21, 90/100-21, 90/90-21, 100/80-21), making it a versatile choice for many motorcycles.

Technical Specifications

• Brand: PARTS UNLIMITED
• Product Name: Inner Tube
• Type: Motorcycle
• Duty: Heavy Duty
• Material: Natural Rubber
• Tube Thickness: 2.8 mm - 3.0 mm
• Rim Diameter: 21"
• Mounting Position: Front/Rear
• Inner Tube Valve Stem Type: TR-4 (Round Base), Center Metal Valve (Threaded/Nuts)
• Fits Tire Sizes: 2.75-21, 3.00-21, 80/100-21, 90/100-21, 90/90-21, 100/80-21
• Units: Each
• MPN/SKU: 03500367
• Vendor Part Number: B20076