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bones1964

New Member

• Oct 20, 2009

• #1

Just fitted some Insua Traction Track tyres size 285/75 R16 on modular wheels to my 2004 Defender 90 TD5 Pick Up.

I assume that this will alter accelaration / top speed? Does anyone know by how much?

Also will the speedo read incorrectly now?

Thanks

Richard

 

G-man

BBQ king

• Oct 20, 2009

• #2

what tyres did you have before?

 

wiltshire landyman

I’m back

• Oct 20, 2009

• #3

defender and acceleration mmmm that dont work..

use yr satnav if u have one that will tell you your actual speed

 

G-man

BBQ king

• Oct 20, 2009

• #4

i was gona do a ittle bit of sums to work out the speed inaccuracy if it had 235/75r16s originally it will be reading....... 9.9% out so if the speedo is reading 60mph you will be doing nearly 66mph

 

Tim.C

Active Member

• Oct 20, 2009

• #5

wiltshire landyman said:

use yr satnav if u have one that will tell you your actual speed

Click to expand...

Cue Nathan5346.......

 

jimbot90

New Member

• Oct 20, 2009

• #6

iv put 36" tyres on mi 90,n i ad t get mi mate wi is satnav t tell me wen i wa doin 30,40,50 n 60 so i cud paint som new numbers on me dail in the rite places.

 

gemsdad

NOT BOTHERED.

• Oct 20, 2009

• #7

Tim.C said:

Cue Nathan5346.......

Click to expand...

:hysterically_laughi

 

hughesy

Well-Known Member

• Oct 20, 2009

• #8

Speedos usually overstate your speed so with the bigger tyres on it won't be as far out as you think as it will have been wrong even with the standard tyres on.

 

SCOTSMAN

Well-Known Member

• Oct 21, 2009

• #9

265 75 16 on my 90 the speedo reads at 60 mph 59mph damn near perfect.

 

si844

New Member

• Oct 21, 2009

• #10

hughesy said:

Speedos usually overstate your speed so with the bigger tyres on it won't be as far out as you think as it will have been wrong even with the standard tyres on.

Click to expand...

im with u on that one. 33's on me disco mean my speedo is reading about 31 wen satnav says 30

can feel a slight acceleration loss with them on