SPORTYOUTH inner tube for 18x9-8 with straight valve ensures reliable inflation.
SPORTYOUTH inner tube for 18x8-50-8 with straight valve on rugged tires.
SPORTYOUTH heavy-duty rubber inner tube offers thick, durable construction.
SPORTYOUTH two-pack inner tubes ready for quick replacements.
SPORTYOUTH universal-fit inner tube compatible with lawn mowers and more.
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SPORTYOUTH

SPORTYOUTH 18x8.50-8 & 18x9.50-8 Inner Tubes - 2 Pack, Heavy-Duty, Straight Valve

High-performance patio lawn and garden made for confident daily results

$33.13

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Premium patio lawn and garden quality selected for United States (USA) customers.

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Why customers choose Cera Garden

Upgrade your tires with SPORTYOUTH inner tubes

Designed for common off-road sizes, these inner tubes slide into tires on 8-inch rims and feature a TR-13 straight valve for simple inflation. Built for durability and easy maintenance, they help you stay productive between tasks.

Key benefits at a glance

  • Perfect fit and broad compatibility with a TR-13 straight valve for straightforward inflation
  • Heavy-duty rubber construction, roughly four times thicker than standard tubes, offering better air retention and resilience
  • Two tubes per pack for quick replacements and less downtime

What you get

Each package includes two inner tubes sized for 18x8.50-8 and 18x9.50-8 tires on 8-inch rims, with a standard TR13 straight valve. Not intended for road use. Maximum inflation is 25 PSI; inflate with a manual pump.

Versatile applications

These tubes suit golf carts, ATVs, wheelbarrows, lawn mowers, garden tractors, go-karts, and similar equipment. The robust rubber and simple handling help you complete routine maintenance or weekend projects more smoothly.

Usage tips

  • Verify tire size before purchase to ensure compatibility with 18x8.50-8 or 18x9.50-8 configurations
  • Inflate up to 25 PSI using a manual pump to avoid overfilling
  • Install in minutes without special tools

FAQ

Q: What sizes do these SPORTYOUTH inner tubes fit?

A: They fit 18x8.50-8 and 18x9.50-8 tires on 8-inch rims, with a TR-13 straight valve.

Q: Is this suitable for road use?

A: Not for road or highway use; intended for off-road equipment and similar tasks.

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