sthus 4L Replacement Petrol Tank for 49cc–80cc Motorized Bicycle — Threaded Petcock, Cap & Switch Included

sthus 4L replacement petrol tank is a direct-fit 4-liter fuel reservoir designed to replace worn or damaged tanks on 49cc, 60cc and 80cc motorized bicycle engines.

This replacement tank from sthus gives you a ready-to-install fuel system spare built for common small motorized bicycle engines. The package includes the tank, a threaded fuel cap and a cap switch, and the tank features an externally threaded petcock area so swapping the petcock or connecting fuel lines is straightforward. Before ordering, verify compatibility with your engine size and mounting layout to ensure a correct fit.

Will this sthus 4L tank fit my 49cc, 60cc or 80cc motorized bicycle?

It is made for typical 49cc through 80cc motorized bicycle engines but fitment depends on your bike’s frame clearances and mounting points. Compare the tank shape and inlet location to your original tank and check engine compatibility before purchase.

• Compatible with many 49cc, 60cc, 66cc and 80cc motorized bicycle engines.
• Externally threaded petcock area enables fast petcock swaps.
• Measure frame spacing and mounting brackets to confirm clearance.

How easy is installation and what comes in the kit?

Installation is straightforward for riders familiar with small-engine maintenance. The externally threaded tank neck and petcock interface reduce time spent adapting fittings, and the included cap and cap switch give you a ready-to-fit starting point.

• Package includes: 1 petrol tank, 1 fuel tank cap, and 1 cap switch.
• Externally threaded tank neck for simpler petcock replacement.
• No special tools required beyond basic wrenches and fuel-line clamps.

What materials and features should I expect for durability and safety?

The tank is built as a replacement for the original equipment, using materials suited to storing petrol. While it’s designed for typical motorized bicycle use, follow safe installation practices and inspect seals and fittings for leaks before riding.

• Replacement-quality construction intended to match original tank performance.
• Threaded connections to reduce fuel leaks when properly tightened.
• Inspect included cap switch and seal for full integrity before use.

What if parts are missing or it doesn’t match my model?

If any accessory is missing from the package, contact sthus for a reissue. Because models vary, always compare the replacement tank to your existing part and ask the seller questions or request measurements when in doubt.

• Contact seller support for missing caps, switches, or fasteners.
• Confirm part compatibility to avoid returns and refit work.
• Keep original fittings until you verify fit and function of the new tank.

Who is this for: The sthus 4L replacement petrol tank is built for motorized bicycle owners and small-engine mechanics who need a direct, cost-effective tank spare for 49cc–80cc engines. It suits riders repairing an old tank, restoring a motorized bike, or upgrading to a replacement that offers easier petcock servicing. If you want a ready-out-of-the-box tank with a threaded petcock interface and basic mounting compatibility, this kit addresses those needs—just confirm fitment before installation.