karm3ll Posted January 25, 2012 Report Share Posted January 25, 2012 Hi guys, Need some help choosing tyres. I've decided to get Falkens but not sure what size exactly. They'll be going on standard Gen7 16'' 5 spokes.. The choices are Falken FK 452 205/50/16 @ 65 per corner Falken FK 452 215/40/16 @ 58.70 per corner Falken ZE912 205/40/16 @ 56.20 per corner Falken ZE912 205/45/16 @ 55 per corner Falken ZE912 215/40/16 @ 53.80 per corner Prices taken from Camskill I'm tempted to go for FK452 215/40 what do you think?? Link to comment Share on other sites More sharing options...
sadlebag Posted January 26, 2012 Report Share Posted January 26, 2012 215/40 on a 16" alloy will be a bit small, your wheels will look tiny in your arches. You need around a 50mm profile Link to comment Share on other sites More sharing options...
badj Posted January 26, 2012 Report Share Posted January 26, 2012 215/40 on a 16" alloy will be a bit small, your wheels will look tiny in your arches. You need around a 50mm profile Thats not how it works. 215 is the width in mm, 40 is the aspect ratio (height, in percentage of width) and 16 obviously the wheel diameter. On a 215 width tyre with 40 aspect ratio the sidewall is 86mm On a 205 width tyre with 50 aspect ratio the sidewall is 102.5mm Why falkens anyway? I've found pilots are good, otherwise Proxes T1R's are good value for an all round performer Link to comment Share on other sites More sharing options...
jonahjones26 Posted January 26, 2012 Report Share Posted January 26, 2012 The falkens are a good tyre Sorry no idea on size tbh I have 17's with 215/45 Link to comment Share on other sites More sharing options...
arizona Posted January 26, 2012 Report Share Posted January 26, 2012 (edited) I have 16'' with 215/45 found that the best combo (am also on gen 7 standard 5 spokes) Edited January 26, 2012 by arizona Link to comment Share on other sites More sharing options...
rpsmith79 Posted January 26, 2012 Report Share Posted January 26, 2012 I'm pretty sure the proper size should be 205/50 16, you can use a tyre calculator to work out which other combination gives you the same (or as close as possible) rolling radius 215/40 16 will be 5.5% smaller, ideally you should keep within + or - 2.5% http://www.alloywhee...Tyre_Calculator It also depends what you want from the car, better handling, acceleration, slammed suspension, stiffer ride, if so then go smaller profile If you want to fill the arches without going stupidly low, higher top speed, more comfy, then go bigger profile Link to comment Share on other sites More sharing options...
Kev 16v Posted January 26, 2012 Report Share Posted January 26, 2012 Go for the OE size of 205/50/16, 452 or 912 is up to you. I would be interested to see how many miles to the gallon you would get with 205/40/16 though Link to comment Share on other sites More sharing options...
shocks Posted January 26, 2012 Report Share Posted January 26, 2012 changing down in profile will also bugger up speedo i thought, rolling distance is changed. i have yokohama's on S drives already used the front 2 had to replace after 6 weeks, so soft but a great gripping tyre. not good for my track day sessions last month. Link to comment Share on other sites More sharing options...
arizona Posted January 26, 2012 Report Share Posted January 26, 2012 i'm a dummy, was thinking of wrong car. Just been out and looked, 205/50/16 Link to comment Share on other sites More sharing options...
BenP1977 Posted January 26, 2012 Report Share Posted January 26, 2012 I'm on 205/50/16's on standard gen 7 5 spokes too. Link to comment Share on other sites More sharing options...
karm3ll Posted January 26, 2012 Author Report Share Posted January 26, 2012 205/50 is the obvious choice but also the most expensive, that's why I looked at different sizes. I thought lower profile would help with handling but didn't know how much it would affect the speedo. Link to comment Share on other sites More sharing options...
arizona Posted January 26, 2012 Report Share Posted January 26, 2012 Lower profile also gets you more chance of going bang when hitting a hole in the road. I previously had 40's lost two in the space of a fortnight Link to comment Share on other sites More sharing options...
badj Posted January 26, 2012 Report Share Posted January 26, 2012 (edited) changing down in profile will also bugger up speedo i thought, rolling distance is changed. i have yokohama's on S drives already used the front 2 had to replace after 6 weeks, so soft but a great gripping tyre. not good for my track day sessions last month. 205/50 is the obvious choice but also the most expensive, that's why I looked at different sizes. I thought lower profile would help with handling but didn't know how much it would affect the speedo. Like I mentioned, the profile (aspect ratio) is a percentage of the width so it only depends on the width. Taking into account a simple calculation not including tyre pressures or the amount of tyre that sits within the wheel and the effect on the profile (stretched tyres or oversized etc.) for example, a 205/50/16 would have 102.5mm profile either side of a 16 inch wheel, so 25.4mm * 16" + 2(102.5) = 611.4mm diameter (24.1" roughly) If you wanted to keep the same diameter (and thus keep speedo accurate as possible) you could use different sizes... i.e. 225/45/16 (101.25mm profile) 25.4mm * 16" + 2(101.25) = 608.9mm diameter (23.97") So only a tenth of an inch difference, which is very negligible. What is really something to think about is this... if you have 6mm tread on new tyres and leave them til the legal limit (1.6mm), you've lost 4.4mm of tread, which is 8.8mm of diameter - thats more than 3 times the difference in rolling diameter than the above tyre sizes. Lower profile also gets you more chance of going bang when hitting a hole in the road. I previously had 40's lost two in the space of a fortnight There is this, you lose comfort and impact absorption through smaller profiles but its a by-product of a tighter tyre, the advantages of which include less sidewall movement so the tyre remains more rigid under lateral forces (which equals better handling to an extent) Edited January 26, 2012 by badj Link to comment Share on other sites More sharing options...
paulgtt Posted January 26, 2012 Report Share Posted January 26, 2012 i run 225/50 on road wheels and 225/40 for track rims Link to comment Share on other sites More sharing options...
Alan Clogwyn Posted January 29, 2012 Report Share Posted January 29, 2012 205/45/16 is quite a harsh ride IMO, but doesn't look too bad at all, especially if lowered. Link to comment Share on other sites More sharing options...
Old Red Celica Posted January 29, 2012 Report Share Posted January 29, 2012 How about prices for 205/55? or go upto 225/50 or 45's. the only problem with that is the more side wall the more squishy the handling. (is squishy a word?) Link to comment Share on other sites More sharing options...
JnrGT Posted January 30, 2012 Report Share Posted January 30, 2012 No idea about falkens on a celica. I had them on my fto but cant remember what kind, they were alright as far as I remember! Hi just bought Eagle F1 asymmetric 2s from camskill.... they are AMAZNG and would advise to buy mate. Previous tyres were sport contact 2s but the goodyears are better Link to comment Share on other sites More sharing options...
Recommended Posts