Your password will probably need resetting - don't panic. We have upgraded a few things and improved the hashing of passwords. Just use the Forgot Password link.
Page:
Home > Technical Chat > Tyres rolling radius

wolfie

User Avatar

8215 Posts
Member #: 90
Post Whore

Somewhere around Swindon

Whats the diameter of 165/70/10, 165/6512 and 175/50/13

Crystal Sound Audio said:

Why wolfie...you should have your name as Fuckfaceshithead !


"A common mistake that people make when trying to design something completely
foolproof is to underestimate the ingenuity of complete fools."-Douglas Adams


jakejakejake1

User Avatar

293 Posts
Member #: 10010
Senior Member

Northants

According to the maths:
about 48.5cm for 165/70/10
51.9cm for 165/65/12
and 50.5cm for 175/50/13

But you may get more accurate answers by getting someone to actually measure their tyres.


Joe C

User Avatar

12307 Posts
Member #: 565
Carlos Fandango

Burnham-on-Crouch, Essex

best thing is to go from revolutions per mile. (taken from calvers list


165/70/10 1078.47

165/60/12 1047.27

175/50/13 1058.82

divide metres in a mile by the above to get the circumference of the wheel to give....


165/70/10 1.4922 metres

165/60/12 1.5367

175/50/13 1.5199

the divide by pi for the diameter,

165/70/10 47.498cm

165/60/12 48.915

175/50/13 48.379cm

On 28th Aug, 2011 Kean said:
At the risk of being sigged...

Joe, do you have a photo of your tool?



http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1

https://joe1977.imgbb.com/



Joe C

User Avatar

12307 Posts
Member #: 565
Carlos Fandango

Burnham-on-Crouch, Essex

best thing is to go from revolutions per mile. (taken from calvers list


165/70/10 1078.47

165/60/12 1047.27

175/50/13 1058.82

divide metres in a mile by the above to get the circumference of the wheel to give....


165/70/10 1.4922 metres

165/60/12 1.5367

175/50/13 1.5199

the divide by pi for the diameter,

165/70/10 47.498cm

165/60/12 48.915

175/50/13 48.379cm

On 28th Aug, 2011 Kean said:
At the risk of being sigged...

Joe, do you have a photo of your tool?



http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1

https://joe1977.imgbb.com/



stevieturbo

3594 Posts
Member #: 655
Post Whore

Northern Ireland

http://www.1010tires.com/tiresizecalculator.asp

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will


Sprocket

User Avatar

11046 Posts
Member #: 965
Post Whore

Preston On The Brook




On 23rd Oct, 2012 wolfie said:
Whats the diameter of 165/70/10, 165/6512 and 175/50/13


what exactly are you after? The tyres rolling radius is smaller than the tyres radius.

If you are trying to accuratey work out revolutions per mile for the speedo, you need to use the rolling radius. If its just to work out if fat tyres will fit, then the tyre radius will be fine

On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be...
So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'...


On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........


wolfie

User Avatar

8215 Posts
Member #: 90
Post Whore

Somewhere around Swindon

rolling radius for looking at gearbox ratios

Crystal Sound Audio said:

Why wolfie...you should have your name as Fuckfaceshithead !


"A common mistake that people make when trying to design something completely
foolproof is to underestimate the ingenuity of complete fools."-Douglas Adams


robert

User Avatar

6752 Posts
Member #: 828
Post Whore

uranus

mine worked out at 19.33 mph/1000 at avon over the line at 112 mph .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM


topcat

318 Posts
Member #: 9408
Senior Member

Tiptree, Essex

Is the rolling radius less than the actual radius because of the deformation of a tyre with weight on it?

www.topcatcustom.co.uk


Sprocket

User Avatar

11046 Posts
Member #: 965
Post Whore

Preston On The Brook




On 24th Oct, 2012 topcat said:
Is the rolling radius less than the actual radius because of the deformation of a tyre with weight on it?


Exactamondo

On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be...
So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'...


On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........

Home > Technical Chat > Tyres rolling radius
Users viewing this thread: none.  
To post messages you must be logged in!
Username: Password:
Page: