Product Description Note

Premium Heavy-Duty 19" Inner Tube (2.75/3.00-19 | 90/90-19)

Looking for the perfect replacement or backup tube for your electric bike or dirt bike? This heavy-duty 19-inch inner tube is specifically designed to handle rugged off-road terrain and high-torque demands.

Perfect Fit for the Sur-Ron Ultra Bee:
While labeled in traditional imperial sizing (2.75/3.00-19), this tube features high-elasticity rubber that stretches flawlessly to match metric 90/90-19 specifications. It is a direct, confirmed fit for the Sur-Ron Ultra Bee rear wheel, as well as various standard 19" front and rear dirt bike tires.

Key Features:

• Perfect Match: Fits 2.75/3.00-19, 90/90-19, 70/100-19, and 80/100-19 tires.

• Heavy-Duty Construction: Built from thick, puncture-resistant rubber to absorb hard impacts and drastically reduce pinch flats on the trail.

• TR4 Valve Stem: Features a reinforced, straight metal valve stem with securing nuts to prevent stem shearing during hard acceleration and heavy braking.

• Reliable Performance: Excellent air retention and heat resistance, ensuring consistent tire pressure during long rides.