90/100-14 (3.00-14) Heavy Duty Inner Tube – 2mm Butyl

PIVOTRAX 90/100-14 (3.00-14) heavy-duty inner tube is a reinforced 2mm butyl replacement tube with a metal TR4 straight valve designed for 14-inch dirt and pit bike wheels.

This inner tube is built to serve as a rugged, trustworthy replacement for 90/100-14 and 3.00-14 tires commonly fitted on 110cc–150cc dirt bikes, pit bikes, and junior motocross machines. Combining a thicker 2mm butyl wall with a reinforced TR4 valve stem, this tube prioritizes air retention, puncture resistance, and durability under off-road stress. It’s intended for riders who need dependable performance across varied terrain without frequent repairs.

How durable is this tube for trail and track riding?

The PIVOTRAX tube uses 2mm butyl rubber for increased puncture resistance and longer service life compared with standard thinner tubes. Its reinforced construction helps reduce flats from thorns, rocks, and rough trail debris while maintaining flexibility for fit and ride comfort.

• 2mm thick butyl rubber for enhanced tear and puncture resistance
• Designed to tolerate off-road impacts and frequent use
• Maintains elasticity to avoid cracking in temperature changes

Will the TR4 straight valve hold up during race prep and frequent tire swaps?

The metal TR4 straight valve stem features a seamless, heavy-duty build that resists bending and leaking during high-PSI inflation and repeated changes. Its design reduces common valve failures and simplifies sealing against the rim for consistent air retention.

• Metal TR4 straight valve reduces risk of leaks and shearing
• Robust attachment point for tire changers and pump heads
• Compatible with standard 14-inch rim valve holes

Which bikes and tire sizes is this tube compatible with?

This inner tube fits 90/100-14 and equivalent 3.00-14 tire sizes, making it suitable for many small-displacement dirt bikes, pit bikes, and junior motocross models. It’s a direct replacement for numerous makes and models commonly used in recreational and entry-level racing.

• Fits Honda CRF125/CRF150 and older CR85 models
• Compatible with Suzuki RM85 and DRZ125, Kawasaki KX85/KLX140
• Works with Yamaha TTR125, YZ85, plus Coolster, TaoTao, Baja pit bikes

How does this tube affect ride quality and maintenance?

The thicker butyl construction smooths ride characteristics by better absorbing impacts and holding pressure longer between maintenance intervals. Riders will notice steadier handling and fewer roadside repairs, though routine inspection and proper inflation remain important.

• Improved air retention reduces frequency of top-offs
• Better shock absorption for rough surfaces and jumps
• Simple to install and inspect during tire services

Who is this for: PIVOTRAX’s 90/100-14 (3.00-14) heavy-duty inner tube is aimed at recreational riders, pit bike owners, and entry-level racers who want a tougher, longer-lasting tube for off-road use. If you own a small dirt bike or pit bike—Honda, Suzuki, Kawasaki, Yamaha, or popular Chinese brands—and you need a reliable replacement that tolerates trail abuse and frequent tire changes, this tube offers a practical blend of durability and ease of use. It is not a beadlock or tubeless conversion component; intended as a direct-fit inner tube replacement for 14-inch rims.