Dave
Up to about 25k with regular greasing I'm told. You may recall that I was given an advisory at my MOT last June by a Dealer. You may also recall that my Roadster had replacement stub axles fitted to reduce bump steer, so the total mileage in June which from memory was about 6,600 - and the mileage on the new stubs was no more than 3,500. I'm still aghast at the advisory, mad but next June it will be tested by somebody I trust to give me a true diagnosis. I've got the tackle to do the job, so the dealer won't get near it on this occasion............in the event that it really does need doing. I'm greasing the pins every 500 miles I guess. Done them four or five times to date.
You'll know when you get an MOT advisory, then some play should be evident if you rock the wheel by holding it at 12 o'clock and 6 o'clock. It's best with a helper pressing the brake pedal to take out any bearing slop. There's no play evident in mine.......... nerd


DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4