Talk Morgan Forums Morgan Sports Cars Classic Morgans (pre-CX) Just how Heavy?

Is a wire wheel from a Roadster?

This question was asked a while back.

The answer?

With tyre is 18.2kg.

So the 5 of them are close to 100kg.

And the weight of alloys? Gerry.

Jays,

how heavy is an alloy?

I posted somewhere a couple of months ago...can't find it! I seem to recall 17 kg.

So only 1,2 kg difference between lightweight and heavyweight then. Not much.

I was looking on another make forum and the weight difference between light weight alloys and tyres at 17" and the alloys wheels they sold at Halfords of the same size and width was about 3kg.

eddie

Got my alloys off for a clean at the moment so couldn't resist nipping out to weigh one. The answer was somewhere in the range of 17-18Kg using travel suitcase scales.

They are a lot easier to clean though !

Richard

You don't have to rub it in!
Cleaning 16" wire wheels is something of a penance..

I had an E-Type with wires for 10 years before the Morgan, so I think I have done my penance !

Richard

The normal regular MWS 6.5x15 black spoke wheel which is fitted on the Roadster Sport from 2010 weights 8.5 Kg only!

http://shop.mwsint.com/product_details.asp?id=468

The 7x16 stainless Morgan standard Roadster wheel is in the 10Kg+ region.

http://shop.mwsint.com/product_details.asp?id=397

The standard alloy Morgan 6.5x15 is about 7 Kg.

Recently my Morgan Garage has weighted the spoke wheel hubs in comparison to the 5 bolt hubs used with the Morgan alloys. In fact, the spline hub for centre lock weights 2,5 Kg with the bearing included!

They had a 5 bolt hub on hand to weight without the bearing. Even without the bearing it weights 4 Kg.

I'm wondering why not few people think, the spline hubs would be heavier. Ok you can save weight on the nut, the three eared nut is 1 kg (two eared about 750 gramm, hexa about 600 gramm.)

To summarise a regular MWS 6.5x15 black spoke wheel with the hub (plus a hexagon nut) weights about 11,6 Kg.

Alloy (7Kg) plus hub with bearing included (5Kg?) plus nuts should be around 13 Kg+. And a higher rotating mass must be added due to the bolt circle of the hub.

Of course the alloys provide better control leading the rubber. But the overall weight value for a spoke wheel including hubs is not too bad.

I guess the selection of a nice propper (light and cool) tyre could help a lot concerning the weight of the tyre counts significantly - fitted on the outer circle of the wheel.