Handler tyres size options 425/75R20 to what??

[Manney]

Currently got 425/75R20 tyres on our Kramer 8095T

They need replacing and like for like is about £670 each.

405/70R20 is an option but narrower and about 6% less rolling radius. Much cheaper at around £500 each for correct load/speed rating.

I have also come across 440/65R20. These have about 5% less rolling radius from the 425/75R20. Bit cheaper again at £450 each. Could I get away with these on a 13inch wide rim or do they definitely need a 14inch rim?? I like the idea of them being a bit wider but the machine a bit lower.

 

[David.]

It's as much the tyre shape as anything else.
I'd have these again in an instant.
They replaced 420 Originals.

 

[ACEngineering]

Currently got 425/75R20 tyres on our Kramer 8095T

They need replacing and like for like is about £670 each.

405/70R20 is an option but narrower and about 6% less rolling radius. Much cheaper at around £500 each for correct load/speed rating.

I have also come across 440/65R20. These have about 5% less rolling radius from the 425/75R20. Bit cheaper again at £450 each. Could I get away with these on a 13inch wide rim or do they definitely need a 14inch rim?? I like the idea of them being a bit wider but the machine a bit lower.

Beware going wider can impact other things when on full lock and also remember axle isolating pivot.

Seen people put wider tyres in before which then rub chassis if rear axle is pivoted over on rough ground.

 

[Gerbert]

Tyre manufacturers tend to have information on their website on recommended and alternative rim widths.