New CR500's with Weights

Having a whale of a time at the Dunsfold Supercar Event didn't come cheap!  A by-product of having such a great time was a new pair of rear CR500 tyres were destroyed and there was a ton of mess underneath my arches - the car has been cleaned, but it needed new tyres too!

These were practically unused before the Dunsfold Supercar Event!

The front tyres were also on their way out, so I decided to order a full set of front and rear CR500's from the Caterham parts site, which I've had fitted today.

I weighed the tyres before I took them to the tyre fitters, so I just had to give the wheels a weigh in between they fitted the new tyres... I wanted to weigh the wheels before I got them repainted earlier this year, but totally forgot, so here goes....

Front AVON CR500 (175/55R13) weighed in at 6.3kg:-


Front AVON CR500 (175/55R13) weighed in at 6.3kg

With the bespoke painted 8 Spoke wheels weighing in at 4.4kg for the fronts

13 inch eight spoke Caterham front alloys weighed in at 4.4kg

Giving the combined front end wheel and tyre weight of 10.7kg - (six inch front CR500's with 13" eight spoke wheels (per corner)).

Onto the rears... The rear AVON CR500 (205/55R13) weighed in at 7kg:-


The rear AVON CR500 (205/55R13) weighed in at 7kg

 And the rear 13" by eight inch eight spoke Caterham alloys weighing 4.7kg

Rear thirteen by eight inch eight spoke Caterham alloys weighing 4.7kg

Which combined with the tyre gives a rear wheel and tyre weight of 11.7kg (per corner).

Total Wheel and Tyre Weight (CR500's on 8 spoke wheels)
So the total overall wheel and tyre weight for a Caterham on 13" eight spoke wheels (front's 6 inch wide, rears 8 inch wide) with CR500 tyres is 44.8kg - and that seems like a pretty heavy figure when every gram counts on a car as light as a Caterham.

ZZR Tyre Weights:-
I could've sworn I weighed my ZZR's a while back, but can't find the images, so when the car comes back from it's annual service I'll do a follow on post from this one.

ZZS Tyre Weights:-
This thread on blatchat pretty much backs up my CR500 weights, but also suggests the weights of the new CR500 replacement tyre the AVON ZZS are as follows:-
"A quick check in Tech Talk has resulted in the CR500 175/55/13 weighs 6.05kg (my weight 6.3kg) and 205/55/13 weighs 7.03kg (same as my weight) compared to 7.65kg and 8.8kg for the ZZS tyres respectively.

So by fitting the ZZS tyres front and rear it will potentially add 6.3kg to the overall vehicle's weight.

Anyway, the new set of CR500's are fitted, balanced, and nicely tucked onto their rack ready for refitting when my car comes back.

CR500's are fitted, balanced, and nicely tucked onto their rack ready for refitting