TYRES WHATS BEST ?

[bb1boy]

Well my aim was to match the diameter of the OEM wheels and tyres, and the 215/40/17 does this, I think people choose the 45 profile for a little extra comfort.

[mynameisowen]

aren't Motegi's 215/45R17 standard? that's what mine has on it.

[SPYDOR]

I assumed that was correct as my Motegi came with those tyres and I have kept buying them, although I prefer the look of the 215/40/17R tyre. As bb1boy said your tyres are the first (and arguably) the most important part of your suspension, so the larger size gives more comfort on bad roads.

I had these tyres stretched onto my new 17x8 alloys and they still fit pretty well but might go for something wider when they need changed.

[andypont]

Well my aim was to match the diameter of the OEM wheels and tyres, and the 215/40/17 does this, I think people choose the 45 profile for a little extra comfort.

I don't really agree. I think Honda recommend 205-50 for the standard 16" wheels? This gives a circumference of 1844mm. A 205-45-17 is only 15mm bigger at 1859mm. That's about 2.5mm on the radius - about the same as a new tyre compared to a half worn one.
205-40-17 has a circumference of 1797mm, so is a approx. 15mm smaller on the overall diameter.

Its all very minor though, with little difference on the speedo. 70mph on 205-50-16 will equate to 70.56mph on 45-17 or 68.22mm on 40-17s.

EDIT. Sorry. I was using figures based on 205 rather than 215 as mentioned.

[bb1boy]

Also worth mentioning that I'm talking 4g's (205/55/15 standard) and most of you seem to be talking 5's.. So for me, 215/40/17 offers (as near as possible) the same diameter as OEM.

[Merlin]

The OEM tyre size for 5th gen 17" wheels is 205/45/17. I still prefer the 215/45/17 and 215/45/17 are generally cheaper as well.