New Throwing Stars!

[BMWCCA1]

He said (in the thread when he asked about fitment of them before he bought 'em) that they're one piece wheels. Pretty good looking for one piece reps IMO.

Ahh! So the deterioration in handling he's experiencing now could be (beyond that possible from inferior tires) the extra weight of the replicas, if in fact they're heavier than whatever those were that were taken off.

[e34.535i.sport]

He said (in the thread when he asked about fitment of them before he bought 'em) that they're one piece wheels. Pretty good looking for one piece reps IMO.

Thanks man... Hey I was looking at the tyres again & meant to ask about this max pressure thing- On one part it says "never inflate beyond 40psi ... when seating beads" (Or something very similar) and on the other side it says "max load 1730 at 49psi" (IIRC) - So is the max pressure 40 or 49psi???

You finfd there's a lot more info on the sidewall than it first appears when you take a good look at it!!!

[bubba966]

Ahh! So the deterioration in handling he's experiencing now could be (beyond that possible from inferior tires) the extra weight of the replicas, if in fact they're heavier than whatever those were that were taken off.

Well, since he's now got more sidewall using 17's instead of 18's like he had it'd negatively effect cornering. The weight of the wheels shouldn't do too much to the corner capabilities vs. what the difference in tires is doing. His 18's were reps as well, so they might've been as heavy or heavier.

Really just think the difference in cornering capability he's experiencing is due to the taller & different make of sidewall on the 17's vs. what he had on the 18's.

Thanks man... Hey I was looking at the tyres again & meant to ask about this max pressure thing- On one part it says "never inflate beyond 40psi ... when seating beads" (Or something very similar) and on the other side it says "max load 1730 at 49psi" (IIRC) - So is the max pressure 40 or 49psi???

Ah, so max psi is 49, not 40. That sounds more like it. Go ahead an try 33f/38r and see how that is.

[e34.535i.sport]

Ahh! So the deterioration in handling he's experiencing now could be (beyond that possible from inferior tires) the extra weight of the replicas, if in fact they're heavier than whatever those were that were taken off.

I was interested in the weight difference myself tbh and it was part of the reason for changing as the old 18" wheels seemed really heavy! Whilst swapping them over I tried to feel for weight difference but there wasnt much in it at all... I wasn't anal enough to get the bathroom scales out though!!!

I checked out all the tyre ratings and the new tyres are superior to or equivalent to the old ones in every aspect so I'm assuming the slightly softer feeling in the corners is due to the small increase in profile size of the tyre... It's certainly enough to make an improvement to the ride quality generally on rougher surfaces though (and over bumps!) which was another reason for the swap!

[BMWCCA1]

Last time I put my snows on, mounted on real E34 M5 17" wheels, I checked and they weighed something like eight pounds less, with no fans, than my 17" OZs—and you could tell it in the handling.

[e34.535i.sport]

Last time I put my snows on, mounted on real E34 M5 17" wheels, I checked and they weighed something like eight pounds less, with no fans, than my 17" OZs—and you could tell it in the handling.

The difference there is one set of your wheels is OE and one is an alternative 'make' which is likely to be much heavier... BOTH sets of my wheels are REPLICA wheels and hence a similar weight. If there is a difference I would imagine the 17s are lighter than the 18s simply due to size.

[freerider]

I need to find some decent wheels for my car now. Those reps look very good!

[BMWCCA1]

The difference there is one set of your wheels is OE and one is an alternative 'make' which is likely to be much heavier... BOTH sets of my wheels are REPLICA wheels and hence a similar weight. If there is a difference I would imagine the 17s are lighter than the 18s simply due to size.

Actually, there is quite a difference in weight even among "replicas" and other after-market wheels, which is why I mentioned it in your case. It surprised me on the OZs since this brand and style (OZ Saturn) is actually OE for Lotus, a marque known for making their cars quicker by making them lighter. Or perhaps the original Motorsport I-beam wheel is just that exceptionally light and well engineered.

Counting the tires, there's not much difference in weight between a 17 and an 18. The tire generally loses a pound as it gains an inch and the wheel makes it up.

[bsell]

Thanks man... Hey I was looking at the tyres again & meant to ask about this max pressure thing- On one part it says "never inflate beyond 40psi ... when seating beads" (Or something very similar) and on the other side it says "max load 1730 at 49psi" (IIRC) - So is the max pressure 40 or 49psi???

You finfd there's a lot more info on the sidewall than it first appears when you take a good look at it!!!

The 40psi when seating bead is a lawyer-based statement. Can you imagine the lawsuit that brought this mandatory statement? Some yahoo pumping endless pressure in a 'dry' tire trying to seat the bead, then the bead releasing past its seat on the rim edge and possibly sending parts of the tire into the yahoo...hence the 'do not exceed' pressure statement.

49psi is the max 'working' pressure. Given the couple psi rise as the tire temps climb, the tire may see low to mid 50psi in normal use...

Hope this makes some sense,

Brian

[e34.535i.sport]

Firstly, let me apologise profusely if my "replica" wheels and "inferior" tyres have offended you in some way.

Actually, there is quite a difference in weight even among "replicas" and other after-market wheels, which is why I mentioned it in your case.

Yawn... Be this as it may, as I said before I lifted both wheels (one in each arm) simultaneously and I found them to be very similar in weight. I certainly couldn't have made a decision on which one was heavier... and yes, they were both pretty heavy.