I'm ready for a new set of tyres on the front of my octy 2. I have already replaced the rear tyres with turanza ER300 but wonder if I can replace one tyre with a ER300 and fit the original spare ( turanza ER30) on the same axle. The tread pattern is similar except for the outer section water displacement pattern.-- OR do I have to buy two new tyres.:confused: Current wear is approx 2mm at 25000mls.

You can as long as they are the same size. But different tyres give different levels of grip so its allways best to fit them in matching pairs.

You know, I just knew you were going to say that. Ha well, just means her indoors will have to wait 'till next month before she can go shopping at the new Westfields in Derby. :)

Isn't the ER300 just the updated version of the ER30? so there ought not to be any great difference in tyre performance, so pretty safe to combine them .... but ...

IMHO I'd leave the ER30 in the boot and get a pair of ER300; they will be 'fresh' and give you equal and best grip.