When you get the Dandy home you can still get 520 X 10 tyres these will be either crossplys or Bias Belted I'd suggest you buy 145 X 10 tyres. These will be 145/80R10 The load index and speed rating are up to you but they will most probably be 69 and N [You must be registered and logged in to see this link.] [You must be registered and logged in to see this link.]
Crossplys are fine if you are the owner of an early 60's Dandy and want to keep it in period form but they are not suitable if you may ever plan a jaunt through France and want to tow at the French limit of 81mph. The speed ratings of crossplys is not normally sufficient.
I could guess that original Minis were 1" (25.4mm) but it's an expensive guess if I'm wrong.
Ian at Riva will know the offset and the required centre bore. [You must be registered and logged in to see this link.] [You must be registered and logged in to see this link.]
You will also need to know from the owner if the wheels are the more modern "Flat Section" wheels that they look like they were made for a trailer or the more deeply dished "Mini" wheels.
If you are phoning Ian please confirm the offsets. You may also want to check if the two different types of wheel have a differing nut profile. The original "Mini" wheels had a round chamfer I'm not sure if some of the "flat" wheels have 600
profile instead. [You must be registered and logged in to see this link.]
We may have encountered an issue with this before. Eilis certainly had some wrong section nuts fitted the other year.
The studs are 3/8ths" on 4" PCD there are also 100mm PCD wheels these look similar but are not suitable. A hint can be 4" PCD wheels often come with a cutout at the side of the centrebore for a grease nipple as used on unbraked "Mini" hubs.
Rather than fiddling about with buying a spare wheel that is only use when the damage is done have you considered pricing up new tyres with a national chain with a branch in Lincolnshire. Conversely ask your seller for a cheap tyre place near his house and order two tyres.
Or as you are travelling past some of the biggest camping and trailer stockists check that they have what you want in stock and pick up en route. The prices charged by trailer spares for a wheel and tyre is often the same or less than a garage for a tyre.
Tyre age. despite what several insurance companies say there is no unified age to replace tyres. [You must be registered and logged in to see this link.]
Different tyre manufacturers recomend different ages or inspection. So technically you should know the policy of the tyre manufacturers for the brand you buy. Yes try asking the local garage that? I think go forth and multiply is a likely phrase.
It is however quite legitimate to ask the age of the tyres you are buying. If you are buying 3 year old tyres you may wish to look elsewhere.
Wheel and tyre sales: The 12th one down of these.(it's white) Bugger can't find one at a decent price now. N.B. this is an example of a flat type design [You must be registered and logged in to see this link.]
No good as you need an offset [You must be registered and logged in to see this link.] [You must be registered and logged in to see this link.]
If you check through these listings you will find wheel and tyre assemblies with crossplys or bias belted quite a bit cheaper, it's your choice. If you decide on 145/80B Bias belted tyres try Autowbars at bradford you may get a good price. Not too far out of your way [You must be registered and logged in to see this link.]
Two final points. You can't feel how your trailer behaves. Get the wheels balanced. I know some don't but......
The wheel studs are only 3/8ths" don't let the wheels be fitted with a windy gun. they are to be fitted with a torque wrench and the torque is 42lbft. A few wheels have been lost and all concerned had just had tyres fitted. [You must be registered and logged in to see this link.]
I'm hoping desperately now that this is a rear entry Dandy not a 6 with 12" wheels.
yes 60mm is a lot did they realise that the measurement is off centre so if the difference between the 2 sides is 60mm then the offset is 30mm. That sounds close to 25.4mm to me.
An original "Mini" type dished wheel not the "flat" later design. [You must be registered and logged in to see this image.][You must be registered and logged in to see this image.]