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Conti sport contact 5 and 6
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- Lifer
- Posts: 8490
- Joined: Wed Jan 20, 2021 7:20 pm
- Location: Spaldingski
Conti sport contact 5 and 6
My new tyre sizes are seemingly a problem to find matching tyres for the front and rears.
After a long conversation with my local tyre place (a national chain), there are only two makes that do both sizes. One is Michelin PS4S, but they are stupidly expensive; over a grand for 4 wheels.
I can get Conti SC 5s on the front and Conti SC 6s on the rears. I have looked up the differences online but really can't find much information. Is there any potential problem with putting 'different' tyres on the fronts and rears, albeit the same make?
I have seen some threads which sing the praises of Continentals, but presume they are the same spec tyres front and rear.
Disclaimer: I know I have argued before that a 'tyre is a tyre', but even I won't put £60 Chinese 'ditchfinders' on a 360bhp car. That is the only other option for my sizes.
After a long conversation with my local tyre place (a national chain), there are only two makes that do both sizes. One is Michelin PS4S, but they are stupidly expensive; over a grand for 4 wheels.
I can get Conti SC 5s on the front and Conti SC 6s on the rears. I have looked up the differences online but really can't find much information. Is there any potential problem with putting 'different' tyres on the fronts and rears, albeit the same make?
I have seen some threads which sing the praises of Continentals, but presume they are the same spec tyres front and rear.
Disclaimer: I know I have argued before that a 'tyre is a tyre', but even I won't put £60 Chinese 'ditchfinders' on a 360bhp car. That is the only other option for my sizes.
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
- pvr
- Legend
- Posts: 26250
- Joined: Fri Jun 15, 2007 12:27 pm
- Location: South East UK
Conti sport contact 5 and 6
I would be very happy with £1k for 4 tyres
Current:
911-50 Black - unique spec
X5M - 575 hp of fun in a V8
Abarth 595 Comp.
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Previous:
Z4M Silver Grey - non flimper spec (gone to Bing)
Z4 3.0 Toledo
911-50 Black - unique spec
X5M - 575 hp of fun in a V8
Abarth 595 Comp.
Golf Clipper - collectors item
Z4 3.0si Black Sapphire
VW ID.3
Previous:
Z4M Silver Grey - non flimper spec (gone to Bing)
Z4 3.0 Toledo
- B21
- Lifer
- Posts: 5436
- Joined: Tue Oct 05, 2021 7:15 pm
- Location: In my Banana Yellow Space Shuttle...somewhere over Southern Caledonia
Conti sport contact 5 and 6
I’ve used the 5 and 5P together…
Technically they are probably a bit behind the MP4S whereas the 7 is clearly ahead…
I’ve always like the feel that all the Contis have on E89s..obviously the 4 is different but it’s another rear wheel drive car..
They wore pretty fast under my foot..but then again all tyres do…
What sizes do you need?
Technically they are probably a bit behind the MP4S whereas the 7 is clearly ahead…
I’ve always like the feel that all the Contis have on E89s..obviously the 4 is different but it’s another rear wheel drive car..
They wore pretty fast under my foot..but then again all tyres do…
What sizes do you need?
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
- smorris_12
- Member
- Posts: 902
- Joined: Mon Apr 18, 2022 2:14 pm
- Location: Somerset
Conti sport contact 5 and 6
I've never seen the need to match front and rears.
Axle sets left to right makes sense, but since the front and back of cars are doing different things, supporting different weights, are attached to different suspension setups and are located at opposing places, mandatorily having one set of tyres all round seems odd to me.
Indeed, if one was needing/wanting certain driving characteristics then different axle sets will instantly do this. Sir wants a slightly more of an oversteery setup, have these and these. Slightly more neutral, try these with those.
Axle sets left to right makes sense, but since the front and back of cars are doing different things, supporting different weights, are attached to different suspension setups and are located at opposing places, mandatorily having one set of tyres all round seems odd to me.
Indeed, if one was needing/wanting certain driving characteristics then different axle sets will instantly do this. Sir wants a slightly more of an oversteery setup, have these and these. Slightly more neutral, try these with those.
------
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
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- Lifer
- Posts: 8490
- Joined: Wed Jan 20, 2021 7:20 pm
- Location: Spaldingski
Conti sport contact 5 and 6
235/40/19 fronts
265/35/19 rears
I have done a lot of research (will they fit.com) and these are the optimum sizes front and rear for the width of rims and rolling radius difference compared to standard. If I went 275 rears, it would be less of a problem for tyre choice but more for RR.
I never knew it would be so complicated TBH.
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
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- Lifer
- Posts: 8490
- Joined: Wed Jan 20, 2021 7:20 pm
- Location: Spaldingski
Conti sport contact 5 and 6
Appreciate your comments, thanks. I am new to all this "modifying".smorris_12 wrote: ↑Fri Nov 18, 2022 10:32 pm I've never seen the need to match front and rears.
Axle sets left to right makes sense, but since the front and back of cars are doing different things, supporting different weights, are attached to different suspension setups and are located at opposing places, mandatorily having one set of tyres all round seems odd to me.
Indeed, if one was needing/wanting certain driving characteristics then different axle sets will instantly do this. Sir wants a slightly more of an oversteery setup, have these and these. Slightly more neutral, try these with those.
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
- B21
- Lifer
- Posts: 5436
- Joined: Tue Oct 05, 2021 7:15 pm
- Location: In my Banana Yellow Space Shuttle...somewhere over Southern Caledonia
Conti sport contact 5 and 6
So what rim sizes are they?Pondrew wrote: ↑Fri Nov 18, 2022 11:43 pm235/40/19 fronts
265/35/19 rears
I have done a lot of research (will they fit.com) and these are the optimum sizes front and rear for the width of rims and rolling radius difference compared to standard. If I went 275 rears, it would be less of a problem for tyre choice but more for RR.
I never knew it would be so complicated TBH.
Before giving you my considered response
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
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- Lifer
- Posts: 8490
- Joined: Wed Jan 20, 2021 7:20 pm
- Location: Spaldingski
Conti sport contact 5 and 6
8.5" front
9.5" rear
9.5" rear
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
- B21
- Lifer
- Posts: 5436
- Joined: Tue Oct 05, 2021 7:15 pm
- Location: In my Banana Yellow Space Shuttle...somewhere over Southern Caledonia
Conti sport contact 5 and 6
Sports contact 7 235 or 245 front and 275 rear
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
-
- Lifer
- Posts: 8490
- Joined: Wed Jan 20, 2021 7:20 pm
- Location: Spaldingski
Conti sport contact 5 and 6
Those sizes don't work with the RR. Will put my speedo out by too much, as well as any other 'issues' with TPMS sensing etc. The car has VSS which concerns me with too wide fronts aswell. The ride height also goes up which I am concerned about. I am putting eibach springs on, so the calculations get far too complex for my tiny little noggin!
I know I am overthinking it, but this is a big outlay for me and I don't want to cock it up!
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
- B21
- Lifer
- Posts: 5436
- Joined: Tue Oct 05, 2021 7:15 pm
- Location: In my Banana Yellow Space Shuttle...somewhere over Southern Caledonia
Conti sport contact 5 and 6
RR?
VSS?
What car is it on?
VSS?
What car is it on?
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
-
- Lifer
- Posts: 8490
- Joined: Wed Jan 20, 2021 7:20 pm
- Location: Spaldingski
Conti sport contact 5 and 6
RR is my abbreviation for rolling radius or circumference.
VSS is variable sports steering. I can't notice any difference to normal to be honest.
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
- tiglon
- Senior Member
- Posts: 1070
- Joined: Mon Jun 24, 2019 11:20 am
- Location: Essex
Conti sport contact 5 and 6
Only one solution really.... get new wheels as well!
2014 E89 35is Valencia Orange 788M wheels (M2 Competition), E90 M3 control arms, Eibach Pro Kit Springs, MHD Stage 1
- B21
- Lifer
- Posts: 5436
- Joined: Tue Oct 05, 2021 7:15 pm
- Location: In my Banana Yellow Space Shuttle...somewhere over Southern Caledonia
Conti sport contact 5 and 6
Well 235 and 275 are the way to go…those sizes are as far as Continental are concerned are the ‘perfect’ fit for those rims (245 valid as well)
Your car has TPMS so RR is irrelevant
DSC wise the change is well inside tolerances for even the E89 let alone later DSCs
Speedo change is immaterial as the speedos under-read by some way..you can always cross check with GPS..
Your other option is to fit Sports 7 on front and whatever on the rear..although in theory oversteer could happen if you really hoon it..
Ride height wise it’s in the noise..
Your car has TPMS so RR is irrelevant
DSC wise the change is well inside tolerances for even the E89 let alone later DSCs
Speedo change is immaterial as the speedos under-read by some way..you can always cross check with GPS..
Your other option is to fit Sports 7 on front and whatever on the rear..although in theory oversteer could happen if you really hoon it..
Ride height wise it’s in the noise..
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
- mr wilks
- Legend
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- Joined: Wed Jul 04, 2012 10:02 pm
- Location: Lancashire
Conti sport contact 5 and 6
Try finding a better national chain they are talking balls .Pondrew wrote: ↑Fri Nov 18, 2022 7:45 pm
My new tyre sizes are seemingly a problem to find matching tyres for the front and rears.
After a long conversation with my local tyre place (a national chain), there are only two makes that do both sizes. One is Michelin PS4S, but they are stupidly expensive; over a grand for 4 wheels.
Amongst many others you can get Dunlop Sportmaxx RT in 235 40 19 / 265 35 19 (£750ish) Hankook Evo 3s ( (£650ish ) & Rainsport 5s
(£750ish )
Id avoid the PS4S at all costs , for the 3rd time i have just removed a set from a car & regarding cabin noise its impossible not to notice the improvement + they arent that great on cold , damp tarmac in RWD cars
3 ZMRs
3 E89s
5 Si coupes
5 Si roadsters
997 C4
TTRS
F82 M4
MK7 Golf Gti
current Bmw 6 Gran Turismo
3 E89s
5 Si coupes
5 Si roadsters
997 C4
TTRS
F82 M4
MK7 Golf Gti
current Bmw 6 Gran Turismo