Row crop duals

[DaveJ]

Has anyone experience of using narrow row crop type duals outside normal tractor rear tyres?

Looking into changing the tractor and I don't want to go particularly wide on the tyre front. It will spend half it's life on loader/road work, we've got some steep ground so grip is mostly more important than flotation, and I plough in a 14 in furrow.

But, 4cyl tractors are getting heavy these days and I'd like some flotation for top work/spring fertilising. Conventional duals would be a nuisance. 12ft is a wide gateway up here and I do a bit with neighbours much of whose ground is accessed from a lane where a 3m power harrow rubs both ditches.

Hence my wondering if a set of tight fitting narrow duals would be the solution?

 

[Badshot]

I've got twin 520's on my nh t6 160
480s on the front.
Swapping wheels side to side gets me down to a smidgen over 3.1m.
That's on opico duals meant for a 16.9.

 

[Flat 10]

Has anyone experience of using narrow row crop type duals outside normal tractor rear tyres?

Looking into changing the tractor and I don't want to go particularly wide on the tyre front. It will spend half it's life on loader/road work, we've got some steep ground so grip is mostly more important than flotation, and I plough in a 14 in furrow.

But, 4cyl tractors are getting heavy these days and I'd like some flotation for top work/spring fertilising. Conventional duals would be a nuisance. 12ft is a wide gateway up here and I do a bit with neighbours much of whose ground is accessed from a lane where a 3m power harrow rubs both ditches.

Hence my wondering if a set of tight fitting narrow duals would be the solution?

I’d like to know too, seems to be done more on the continent and they bolt the additional wheels in the centre I think. Makes sense especially if you have rowcrops not required rest of the year.

 

[DaveJ]

This is the sort of thing I had in mind, ideally a tad narrower. Picture lifted from Stocks website.

 

[Will 1594]

Bigger tyres than what your using , but running 800/70/38 sft ,with a 380/105/ 50 row crop as dual ,to keep in 4 m ,when drilling , then 800 for cultivation etc
You will need a step dual ,rim what size are you running on tractor

 

[DaveJ]

Bigger tyres than what your using , but running 800/70/38 sft ,with a 380/105/ 50 row crop as dual ,to keep in 4 m ,when drilling , then 800 for cultivation etc
You will need a step dual ,rim what size are you running on tractor

Tractor is still at the getting quotes stage. So probably 460/85r38 or 520. Hoping with narrow duals to keep width to 3m so can run on the road without removing (both legally and, around here, practically).

 

[Frankzy]

legally

Is it really illegal to go over 3m on a tractor?
How do they suppose tractors with regular sized duals are going to reach any fields?

 

[melted welly]

Is it really illegal to go over 3m on a tractor?
How do they suppose tractors with regular sized duals are going to reach any fields?

Legal up to 4.1m, but need wide vehicle dispensation from plod and escort on road, movement times restricted to avoid rush hour.

 

[Khan]

We used to use Schaad AW dual wheels which had a central U shaped bracket bolted on outside of existing hub and you clamped a normal wheel with centre to it with overcentre clamp and spacer band. Often dualled 16.9r34 with 13.6r38 and stepdown band. Quick and easy way of dualling up. 18.4r38 isn't an easy tyre to get narrow tyres for without going very narrow, think our old 399 used 12.4r46 when we swapped spraying wheels on, never used these as duals but can't see why you couldnt.

 

[Flat 10]

We used to use Schaad AW dual wheels which had a central U shaped bracket bolted on outside of existing hub and you clamped a normal wheel with centre to it with overcentre clamp and spacer band. Often dualled 16.9r34 with 13.6r38 and stepdown band. Quick and easy way of dualling up. 18.4r38 isn't an easy tyre to get narrow tyres for without going very narrow, think our old 399 used 12.4r46 when we swapped spraying wheels on, never used these as duals but can't see why you couldnt.

I think 11.2 r 48s are pretty close

 

[Will 1594]

12.4/46 will match .putting our rowcrops on this aft for beet drilling ,am sure there is some of that size with removable steppers at cheffins ,will look next sunday