Tube 25x8.00-12 Valve TR6
15,90 €
Tube 25x8.00-12 Valve TR6
15,90 €
Shipping price from: 6,90 €
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Tube 25x8.00-12 Valve TR6
Product.Nr.: 990017261
Manufacturer: Novio
This tube in size 25x8.00-12 is designed for use in various industrial, municipal and garden applications. It is particularly suitable for tyres on machines such as ride-on mowers, compact tractors, trailers or equipment used in landscaping and municipal operations that require a reliable air supply and high load capacity. Thanks to the robust material and the proven TR6 valve, the tube offers a durable and safe solution for daily use.
Technical data
- Tube size: 25x8.00-12
- Inch size: 12 inch
- Valve type: TR6
Valve type TR6 – properties
The TR6 valve is a straight tube valve mainly used on smaller agricultural equipment, garden machinery and municipal machines. It is characterised by easy handling and good sealing performance.
Typical technical features of the TR6 valve:
- Design: Straight valve, led directly out of the tube
- Valve hole drilling: Designed for the common standard rim hole for TR6 valves (approx. 15–16 mm)
- Valve length: Medium size, designed so that the valve is easily accessible without protruding excessively
- Valve body: Metal valve with rubber base for secure sealing in the tube
- Valve core: Standard car valve core (Schrader type), suitable for common inflation devices
- Dust cap: Screw-on cap for protection against dirt and moisture
Benefits and application range
The 25x8.00-12 tube with TR6 valve provides a reliable solution for tyres in size 25x8.00-12, as commonly found on ride-on lawn mowers, small utility vehicles, trailers and work equipment used in gardening and municipal applications. The robust design ensures good shape stability and airtightness, even under changing loads and in continuous operation.
Thanks to the proven TR6 valve, inflating and checking the air pressure is straightforward. The valve is compatible with standard air filling devices and pressure gauges, which makes maintenance particularly simple. Overall, this tube is ideal for users who require a durable and low-maintenance solution for their machine tyres.
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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