Eskimo Neutral Newbie April 28, 2008 Share April 28, 2008 My new ride stock tire will be 195/65R15. Since I am changing the stock tire to a better one, Maxxis M35,I am inclined to change the size to 205/65R15 ? Besides the advantages and disadvantages a wider tire offers, are there any safety concerns for not following manufacturer's specs in this case? Thanks ↡ Advertisement Link to post Share on other sites More sharing options...
Leepee 1st Gear April 28, 2008 Share April 28, 2008 Do use a ruler to actually measure the width of your tyres. The rolling dia is also very depending on the tyre manufacturer. For instant if you check the 195/55/r15 of falken-522 tyre, from official website, the actual thread width is 205mm. Some 225 or 205 tyres are specially designed with 'rounded' edge, so as to avoid rubbing on the car fender. Meaning the surface with the thread part is actually narrower than what the 225/205 expectation. Link to post Share on other sites More sharing options...
Ivan0507 Neutral Newbie April 28, 2008 Share April 28, 2008 is this brand of tyre available 205/65r15? Link to post Share on other sites More sharing options...
Eskimo Neutral Newbie April 28, 2008 Author Share April 28, 2008 Yes, apparently it has both 195/65R15 and 205/65R15. The dealer mentioned the 205 will offer rim protection. I was thinking more on the additional(though it may be small) stability and road holding the slightly wider tires offers to a Toyota Isis, without needing to upgrade to a 16". Link to post Share on other sites More sharing options...
Nauticar Neutral Newbie June 11, 2008 Share June 11, 2008 If you change from 195/65 to 205/65, your rolling radius will be larger. While a wider tyre will theoretically give more lateral (sideways) grip, a larger tyre will worsen your acceleration. Also, the 205/65 will be heavier than the 195/65. Adding weight to your tyre and rim combo is rarely a good idea, plus it will probably be a little more expensive. Additionally, your speedo will be off by a little - about 2%. You will be travelling faster than what your speedo says. If you ABOLUTELY have to go with wider tyres, get a 205/60R15. That will be closer to your stock rolling radius than a 206/65R15. Link to post Share on other sites More sharing options...
Eskimo Neutral Newbie June 12, 2008 Author Share June 12, 2008 I've changed from the stock Yokohama S-221 to Maxxis M35 performance tyre but still wondering if it was a good move in terms of tyre make/model. Then again there isn't much choice of a performance tyre since I chose to remain at 15". You are absolutely right on the added weight part. I'm on CNG and when I hear a couple of guys can reach 200km on a single tank, I begin to realize why my average is only 170km. Link to post Share on other sites More sharing options...
Gabriel 1st Gear June 12, 2008 Share June 12, 2008 ..yupz..a diff in fc... mine dropped by 50-100km when me changed from 165 to 185 realli regret now..since fuel price rising.. should haf stuck to 165 instead Link to post Share on other sites More sharing options...
Eskimo Neutral Newbie June 12, 2008 Author Share June 12, 2008 The 185 would give better stability I thought, than the skinny 165. I supposed you upgraded your rim size too. Link to post Share on other sites More sharing options...
Ahdi Neutral Newbie June 12, 2008 Share June 12, 2008 205/60R15 shld be giving u the correct rolling diameter. wider tyres gives u betta grip when cornering. safety? as long it does not protrude and rub against ur fender, shldn;t be an issue. my stock is 205/65R15, i switch to 215/50R17 2nd day. Link to post Share on other sites More sharing options...
Mustank Hypersonic June 12, 2008 Share June 12, 2008 my one came with 235 70R16.... if you think that is thick, consider the 235 70R16 hauls a heavy arse 2.5 ton pig karp i changed to 255 65 R16, grip much better, accelration wrose off, stoppping distance shortened, fuel efficiency droppped 10%, differrence in cornering i don know because any crazy guy wanting to corner hiong hiong with a pig karp is asking for trouble Link to post Share on other sites More sharing options...
Friendstar Supercharged June 12, 2008 Share June 12, 2008 If you change from 195/65 to 205/65, your rolling radius will be larger. While a wider tyre will theoretically give more lateral (sideways) grip, a larger tyre will worsen your acceleration. Also, the 205/65 will be heavier than the 195/65. Adding weight to your tyre and rim combo is rarely a good idea, plus it will probably be a little more expensive. Additionally, your speedo will be off by a little - about 2%. You will be travelling faster than what your speedo says. If you ABOLUTELY have to go with wider tyres, get a 205/60R15. That will be closer to your stock rolling radius than a 206/65R15. ur reply is good Link to post Share on other sites More sharing options...
Friendstar Supercharged June 12, 2008 Share June 12, 2008 how much are ur tyres? with that kind of size... Link to post Share on other sites More sharing options...
Mustank Hypersonic June 12, 2008 Share June 12, 2008 price in late 2006: $120 a piece (yoko geolander h/t) Link to post Share on other sites More sharing options...
Nauticar Neutral Newbie June 12, 2008 Share June 12, 2008 Thanks bro - but I think it's not as good. I got typo error. ABOLUTELY. Link to post Share on other sites More sharing options...
Eskimo Neutral Newbie June 13, 2008 Author Share June 13, 2008 The tyre shop should have recommended the correct size to keep the same rolling diameter, in the first place. Anyway, due to the higher profile tyre, the ride is I think a centimeter or two higher , which is not that bad considering it has a low bottom (spare tyre) which would easily rub against parking kerbs. Link to post Share on other sites More sharing options...
Nauticar Neutral Newbie June 13, 2008 Share June 13, 2008 Perhaps the tyre shop didnt have the size that would have kept your diameter about the same. To be exact, your ride will be 6.5mm higher, but of course this very much depends on other factors like your tire pressures and brand/make of tyre. It's not that bad - you might end up with a more comforable ride with the higher sidewall, and apart from the slight increase in weight I cant really think of any downsides. Link to post Share on other sites More sharing options...
PohHengTyre Neutral Newbie June 13, 2008 Share June 13, 2008 205 60 is the rite size Link to post Share on other sites More sharing options...
Nauticar Neutral Newbie June 14, 2008 Share June 14, 2008 Care to elaborate ? ↡ Advertisement Link to post Share on other sites More sharing options...
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