Dual Wheels INFOClick on target for more info
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  • Rims

    Up to 7mm thick conforming to ETRTO Standards built to our requirements.

  • Power Rail

    Rolled from 50 x 12mm (SPECIFICATION) steel continuously machine welded into them using a special process to provide the anchor for the clamps and to reinforce the rim.

  • Spacer Bands

    Up to 6mm thick are rolled with a double rib for additional strength and a precise concentric fit into the tapered bead section of the tractor wheel.

  • Eyenuts

    Drop forged Carbon Steel hardened and tempered to BS970 with a tensile strength up to 700 Nmm2.

  • Clamps

    The design of clamp means easy fitting to fixed centre wheels – simply attach eyenuts to existing wheel weight holes. A unique removable spacer allows the clamps to work correctly either in this position, or attached to adjustable wheel rim bolts.

  • Threaded Rod & Hookends

    Our threaded rod is no ordinary rod, made from high tensile steel with a specific pitch of 2.5 to ensure both durability and strength, whilst our hookends conform to BS970 containing 1% Chromium Alloy Steel hardened and tempered to 215/255 BHN with a tensile strength over 870 Nmm2.

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Increased traction
Increased work rates with less fuel wastage - more hectares for less therefore reduced tyre wear and soil smearing.
Decrease compaction
Improved soil structure, drainage and plant establishment with fewer expensive remedial deep cultivations.
Increased stability
Superior ride and a bigger tyre footprint. increasing safety on hillside work.
One design only
Suitable for all horsepower tractors.
Stocks AG
Stocks AG

Our Dual Wheels Products

Standard Duals

Our standard range of Stocks Duals are the strongest dual wheel available and feature heavy-duty clamps, hooks, eyenuts and eyebolts.
There is no need to rotate the dual for alignment with the tractor wheel. Wherever the eyenuts are attached to the tractor wheel, simply fit a hook to the eye nut and an over centre clamp to the dual wheel power rail, and tension with the handle supplied.

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Step Up / Step Down Duals

A design enabling two wheels of different diameters to be dualled together when the two tyres have a similar static loaded radius

Generally uses a smaller and narrower wheel and tyre as the dual. For example, a 13.6 R 48 dual tyre alongside a 20.8 R 38 tractor tyre will reduce the overall vehicle width to match an implement or make roadwork easier, or a 20.8 R 42 dual tyre alongside a 710/70 R 38 tractor tyre offers less expensive dualling than using two 710 tyres.

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Combine Duals

These are particularly suited to this method – most large combines are fitted with a 32″ diameter tyre of various widths and profiles but most of these have a very similar SLR. A standard 20.8 R38 tractor tyre will work as a dual alongside most of these 32″ combine tyres and provide very useful flotation and traction at very modest cost, and without putting massive strain on the combine axle and hubs.

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Straddle Row Duals

Extra wide spacer bands can be specified to allow the use of dual wheels for inter-row work. These are custom built to the required row spacing and can be either standard tractor sizes or row crop sizes. Note: The centre discs of the tractor wheels may need to be reinforced to withstand the additional loading due to the extra width and consequent leverage. This is more relevant when using row crop wheels due to the larger diameter discs (more leverage) and higher tyre pressures (harder ride).

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Triple Wheels

All our standard Stocks Duals can also be used as triple wheels. Simply use the same size again, coupled onto the tractor wheel using clamp assemblies with extra long hooks. Some tractors are better suited than others for triple installations, for example, those using bar-type axles.

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Bolt-On Small Diameter Duals

For very small diameter wheels not able to utilise our standard clamping arrangement we offer Bolt-On duals, using conventional spacer bands to locate them.

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Bolt-In Dual Wheel Adaptors

An adaptor to allow our standard adjustable row crop wheels to be used as a single row crop or as a dual wheel alongside another row crop or standard tractor wheel. With the bolt in the spacer bands removed, the row crop wheel reverts back to single use.

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Bolt-In Adaptor

Designed to fit the original JD flange wheel that normally bolts to the JD cast centre, this adaptor converts spare JD wheels into duals.

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