The 400 (NC30) needs new tyres, currently worn out are a pair of BT90's. Looking at Bridgestone websites it seems these are either no longer available or they recommend different, BT016, 021 or 023.

Grip rather than long life is more important to me so what are the recommendations?

What about Pirelli's?

Thanks

John

BT90's are still widely available mate, check out this thread.