Dual wheels or bigger tyres?

[Run to the hills]

Just wondering if anyone could offer some advice?
For drilling we hire the drill and tractor from a neigbour who we share abit of other kit with. Tis a 3m combi, tractor is on 520/70/38s at moment however he's been thinking of altering tyre setup. Were discussing it other day but couldnt decide what was best.
Go up to 600 tyres, doesnt want to go bigger as will make tractor too much higher. Would require new rims tho.

Or fit duals to existing wheels. Perhaps slightly harder work but much cheaper, and better for in field work
Thanks for any help

 

[Lincs Lass]

Hanging duels on will possibly be wider than the 3mtr ,could end up leaving a tread mark every drill breed that will out side the working width ,I know when we used 18.9x 38 with duels ,they were only just inside a 4mtr power harrow

 

[two-cylinder]

You can go bigger without altering tractor height.
650/60R38 same height as 600/65R38.

Wider tyres best choice, minimises total width and will have a smoother ride than duals.

 

[Run to the hills]

Hanging duels on will possibly be wider than the 3mtr ,could end up leaving a tread mark every drill breed that will out side the working width ,I know when we used 18.9x 38 with duels ,they were only just inside a 4mtr power harrow

Aye would have to set the wheels in to 64 inch track width to make it fit.

 

[Run to the hills]

You can go bigger without altering tractor height.
650/60R38 same height as 600/65R38.

Wider tyres best choice, minimises total width and will have a smoother ride than duals.

Ahh never thought of 60 instead of 65. Ride wouldnt be too much of an issue as it doesnt go far on the road really

 

[Lincs Lass]

Think it will still be to wide ,,stocks duels will stand of the tractor rim by 4 inch then ad your duels width

 

[Run to the hills]

Think it would be something like 6 or 8 inch wider. Could be manageable....

 

[SMID]

What about row crop duals with the existing wheels with a bit of luck that should be about 3m overall

 

[Lincs Lass]

Only thing is you will see every drill breed as its not working up trooden ground

 

[quattro]

What about 28l x26 I think, used to have some that replaced 520/70s just swopped rear wheels and left fronts alone

 

[Run to the hills]

Narrower duals would work but he allready has a set of duals that fit, so doesnt really want to buy another set.
Similar with much bigger tyres would need all new rims and centres

 

[David.]

Aside from duals being undoubtedly more hassle to manage, which of the alternatives: Duals, 650 (or wider) radials, cross-ply terras, actually do the best job of actually keeping a tractor afloat in poor conditions? I suppose would be a question to start from.

 

[Farma Parma]

if its of any benefit i run 650/42's at 78" centres on a 7499 with a 3m Combi & get on spoton with it
You could run 710's even but at 72" centres either 38-42" it wont matter.

 

[Nearly]

Narrower duals would work but he allready has a set of duals that fit, so doesnt really want to buy another set.
Similar with much bigger tyres would need all new rims and centres

cut the band on the duals to make them fit closer to tractor. Should be able to get under 3m with 520 70 38's....just.

 

[KennyO]

cut the band on the duals to make them fit closer to tractor. Should be able to get under 3m with 520 70 38's....just.

We had cut down 18.9-85-38 duals on 520-70-38. They were just over 3m on 72" centres. Tyres rubbed though as bands were cut too short.

Now run 620-42s. on a different tractor.

 

[Nearly]

Have some cut down rim16.9 38's here, with a pair of 18.4 tyres spare too. @Run to the hills
edit - cheap

 

[Tomtrac]

I run 16.9/38 stock duels on 520 x38 dont leave a line
Realy like em easy to put on take off
Drill with em then do
pre-em spray with em on and spring fert and sprays
top job far more rubber on ground than large tyre
Have an old four wheel press on front arms so the Whhole 3mt gets rolled in before drill

 

[Run to the hills]

Cheers @Nearly sounds good will mention it to him, as its neighbours machine not my decision. Not sure if he'll go for cut down rims but will see.

 

[Rs chunk]

I run 18.4x38 on tractor and duals 16.9x38 with tractor width at 68" centres and no wheel marks left with 3m vaderstad drill

 

[Digester Man]

Why not just put her on 650s or 710s and keep them on all the time?