Thread: BFG KO2 265/60/18

Originally Posted by LRD414

Hi mate, thinking of joining the fat tyre brigade hey.

For me, there were three reasons:
- zero rubbing in any situation or issues if vehicle drops to bump stops
- fit a fully inflated spare under vehicle
- stay close enough to factory size (775 vs 763 OD) to use one 19" as a 2nd spare in an emergency situation

I've since learnt that the bump stop issue is for older models anyway and I believe the later model bump stop would prevent locking of the wheel in the wheel well with 265/65/R18. However, at the time this wasn't clear and I suppose still isn't in that I haven't seen it tested definitively.

The deflated spare is not a show-stopper just a bit painful.

I have tested the 19" 2nd spare scenario and no errors thrown but not something I would run long-term. However, I am now favouring sourcing a cheap 18" rim and having the 2nd spare as a properly matching diameter to the main five, so that reason becomes somewhat redundant.

Since my selection I have been offroad with friends who run 265/65/R18 KO2s and I haven't detected any real world difference. Of course they have slightly better clearance and slightly better sidewall height so there will eventually be a situation where they are better off but not to date. Neither size stops cosmetic wheel damage.

What would I choose next time? Not sure really. Bigger is better in some ways but there doesn't seem to be much in it in my experience.

Cheers,
Scott

Same here - same reasons for staying with 260/60/R18 KO2s size.

I've got a feeling that I remember from somewhere that copper and aluminium are not compatible so I Googled it.

Aluminum will be very susceptible to galvanic corrosion in contact with copper, assuming that the two metals are also in contact with a common electrolyte (such as water with some ionic content.) Almost any text or handbook on corrosion will have galvanic series table. The farther two metals or alloys are separated on the table, faster the corrosion of the less noble of the two will be when they are in contact.

There are other products out there that do the same job, might be worthwhile checking a different product before your wheels will never come off.

Regards

Mike