175/55 13 CR500 / 185/60 13 AO48

[eric]

The difference is ...., first of all

the dimension of each tyre

 

So what about the gearing

Is it better behind the Wheel ? with the smaller one

 

As the 13" are becoming rare, for road AO39, Bridgestone re 720

and O21 are or will stopped

Do you think the future of 13" fans will be with CR500

048 ?

 

My 7 is a sprint with 110 HP 5 speed 3.92 De Dion

 

eric

[eric]

Any other makes avalaible than cr500 or Yoko in 13"

 

A good tyre of course

[CageyH]

Toyo R888's?

[Chris__]

Dunlop Formula R are available in 185/60/13, but good luck finding any. As for road biased tyres, nope, there aren't many. Uniroyal Rallyes, Goodyear Eagle Ventura are about the only branded tyres that come up on the main web based tyre sites.

 

[Shaun_E]

There is a very noticeable difference between these 2 tyres. I have just swapped from A048R to CR500 and the ride height dropped siginificantly. With adjustable spring platforms this is easily corrected.

If you are using the same size on the rear it will affect the gearing noticeably. I'm not sure how that will translate to feel but it should make the car accelerate more quickly - it will also affect your speedo reading.

I have changed to wider rears and hence the 205/55 CR500 is about the same diameter as the old 185/60 A048R.

 

Yellow SL #32

[stevefoster]

As for gearing you want to be on the shift light at the end of the longest straight 😬

 

Hants (north) / Berkshire club here

Area meeting pics here

My Racing here

 

[Tom_C]

Is the supply of A021R drying up in 13" rims then? I'm about to switch to these in place of my Avon CR322s, principly to keep the same gearing (70 profile is available in 021 but not 048).

 

Should I bite the bullet and get the speedo calibrated for 048 instead?

 

 

Cheers

 

Tom

 

FH54WLX - only the car supports ManU, honest!