I don't know why all these manufacturers can't publish real world width dimensions. It would help people to properly choose their implements for a particular model. Nothing worse than having a blower or blade that doesn't cover the tire tracks.
I presume because you can specify them with different tyres, and the different tyres have different widths. However, the centres stay the same. It's logical enough, until you realise that most people run the standard tyres, and it wouldn't be so difficult to give both the centre measurements as well as width with standard tyres.I don't know why all these manufacturers can't publish real world width dimensions.
The rims on the R1s & R4s for Grands & R1s only on economy Ls are adjustable. No clue on R3 turf tires. You unbolt the rim from the wheel & mess with spacers or locations & the tire is moved closer or further from the machine. So the centers or total width changes to meet various requirements.I presume because you can specify them with different tyres, and the different tyres have different widths. However, the centres stay the same. It's logical enough, until you realise that most people run the standard tyres, and it wouldn't be so difficult to give both the centre measurements as well as width with standard tyres.