Tube 2.80/2.50-4 JS87 KINGS TIRE
4,90 €
Tube 2.80/2.50-4 JS87 KINGS TIRE
4,90 €
Shipping price from: 6,90 €
Product Product in stock
Tube 2.80/2.50-4 JS87 KINGS TIRE
Product.Nr.: 990017193
Manufacturer: KINGS TIRE
This 2.80/2.50-4 tube with JS87 angled valve from KINGS TIRE is designed for small wheels and tyres in industrial and garden applications. It is ideal for platform trucks, sack trucks, hand trucks, small trailers, garden equipment and similar uses where a reliable, airtight air supply is required. The robust rubber compound ensures durability and good pressure stability, while the JS87 valve allows convenient inflation even where space around the valve is limited.
Technical data
- Brand: KINGS TIRE
- Tube size: 2.80/2.50-4
- Inch size: 4 inch
- Valve type: JS87
Valve-specific data (JS87):
- Design: angled rubber valve (usually 90° angle) for easy access
- Valve hole diameter: approx. 8.3 mm (standard drilling for many small wheels and rims)
- Valve length: usually approx. 30–35 mm from rim seat (depending on rim design)
- Valve body: rubber stem with metal valve core
- Valve cap: removable, protects against dirt and moisture
- Suitable for: pneumatic tyres using standard air pumps and compressors
Benefits and applications
The 2.80/2.50-4 JS87 tube is a suitable solution for compact wheels where precise and secure air guidance is required. Thanks to the matched size, it is ideal for tyres in the 2.80/2.50-4 format and ensures a good fit and reliable airtightness.
The angled JS87 valve makes it easier to inflate and check the air pressure, especially on rims with tight valve access or installed wheels. This makes the tube particularly practical for transport equipment, cleaning machines, garden and municipal machinery, as well as various hand-operated and industrial transport devices.
Overall, this tube offers a robust, low-maintenance solution for daily use whenever a reliable inner tube in size 2.80/2.50-4 with JS87 valve is required.
Frequently asked questions about this product
The valve designation describes two things: the stem diameter — which must fit the hole in the rim — and the shape, i.e. straight or angled.
Only the bore matters for a proper fit: a valve fits perfectly only if its stem matches the bore in the rim. Whether it is straight or angled makes no difference — that is a question of accessibility.
An overview of the types:
| Type | Shape | Bore | typically used for |
|---|---|---|---|
| TR13 | straight, rubber | 11.5 mm | Car and trailer wheels |
| TR4 / TR6 | straight, short | 11.5 mm | Small wheels, garden tools |
| TR15 | straight, rubber | 16 mm | Agricultural machinery, tractor rims |
| TR87 | 90° angled | 11.5 mm | Small wheels, solid rims |
| JS8 (DIN 7777) | 90° angled, same as TR87 | 11.5 mm | small wheels, solid rims |
| JS2 | Approx. 70° angled | 11.5 mm | Industrial and small wheels |
| V3-02-7 (TR75) | 100° single-bend metal angle valve with screw-on base | 12.2 mm | Commercial vehicles, lorries, trailers, agricultural and industrial machinery such as forklift trucks |
| V3-06-3 | Triple-bend brass truck screw-on valve (90°/139°/139°) | 9.7 mm | 20-inch truck and trailer tubes (6.00-20 to 9.00-20), also 22.5-inch tube-type tyres |
| TR218A | Straight metal air-water valve, two-piece | 15.9–16 mm | High-volume tubular tyres for agricultural and industrial use, tractors |
V3-02-7 in detail: Also known as ETRTO V3.02.7 and US designation TR75. Dimensions: Horizontal leg length 22.5 mm, vertical leg length 71.5 mm, total height approx. 91 mm. The valve base is screwed on, not pressed in — this makes it significantly more robust than a rubber valve.
V3-06-3 in detail: Also known as ETRTO V3.06.3. Triple-bend brass screw-on truck valve: the first bend is 90°, the other two 139° each — this guides the filling end past the rim flange and keeps it accessible even with twin tyres and deep rim wells. Leg dimensions approx. 20.5 / 46 / 20.5 / 47.5 mm (approx. 135 mm developed length), rim hole 9.7 mm. The valve is fastened to the tube with a sealing washer and nut instead of being vulcanised in. In our range on the 20-inch tubes 6.00/6.50-20, 7.00/7.50-20, 8.25-20 and 9.00-20.
TR218A in detail — the valve for water ballast: What makes this type special is the option for liquid ballasting: the hose is partially filled with water to increase the vehicle’s weight and thus improve traction — a common practice with tractors.
- Design: straight, robust metal valve, usually in two parts. Unscrewing the inner CH3 valve insert creates an extra-large opening — allowing for quick filling with air or liquid.
- Rim bore: 15.9 to 16 mm (0.625 inches).
- Length: typically around 38 to 48 mm total height above the rim.
- Mounting: a rubber base approximately 80 mm in diameter for vulcanising onto the inner tube, plus a lock nut for secure attachment to the rim.
Reducing sleeves: A TR15 valve does not fit into an 11.5 mm bore. Conversely, there are sleeves that allow a TR13 valve to fit into a 16 mm bore.
Whether straight or angled is not a question of fit, but of accessibility: with closed rims or small wheels, it is often impossible to reach the valve with a pump using a straight valve — in which case an angled one is used.
Not sure which valve is fitted? A photo of the old valve is all we need to identify it. Choose from: inner tubes, bead tapes and valves.
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