TIRE questions,sizes, mounting,pressures ANY tire questions - Unofficial Honda FIT Forums

Go Back  Unofficial Honda FIT Forums > Fit Modifications > Fit Wheels & Tires
Reload this Page >

TIRE questions,sizes, mounting,pressures ANY tire questions

Fit Wheels & Tires Discuss Wheels & Tires for the Fit and Jazz
Sponsored by:
Sponsored by:

TIRE questions,sizes, mounting,pressures ANY tire questions

Reply

 
 
 
  #2  
Old 10-30-2005, 11:00 AM
New Member
Join Date: Oct 2005
Location: Quezon City, Metro Manila, Philippines
Posts: 2
Changing Tires

I recently changed the tires of my 1.5 Jazz/Fit Vti CVT to 195/60/15, will this compromise anything in the car? Can the Jazz/Fit accomodate 205/60/15 tires?
 
Reply With Quote
  #3  
Old 10-30-2005, 06:25 PM
vividjazz's Avatar
Someone that Posts too much
Join Date: Aug 2005
Location: Sydney, Australia
Posts: 683
Your speedo and odometer will be thrown out as the rolling diameter of your wheels with tyres is greater. As you go wider you need to reduce the tyres profile to maintain the same rolling diameter.

Lower profile tyres give a harder/harsher ride. Heavier wheels with stickier rubber will reduce the vehicles fuel economy. The vehicle will also be slower.

http://www.carbibles.com/tyre_bible.html - This site will help you calculate the correct sized tyres needed to maintain an accurate speedo.

Comes down to better looks traded off against everything else.
 
Reply With Quote
  #4  
Old 10-31-2005, 12:29 AM
New Member
Join Date: Oct 2005
Location: Quezon City, Metro Manila, Philippines
Posts: 2
Thank you vividjazz, the carbibles site was very helpful. According to the site and the bridgestone website, the maximum size of tires that i can put on the stock 15 inchers is 205/50/15. Will the ride of the 205/50/15 be less harsher than the ride of the stock 185/55/15? The ride of the 195/60/15 is wonderful but as you said it sacrifices speed and fuel economy then that defeats the usefulness of the jazz. I am thinking of switching to 205/50/15 as recommended by carbibles and bridgestone, however, before I do so, I would like to hear your opinion on the ride of the 205/50/15 compared to the stock 185/55/15.
 
Reply With Quote
  #5  
Old 10-31-2005, 01:21 AM
vividjazz's Avatar
Someone that Posts too much
Join Date: Aug 2005
Location: Sydney, Australia
Posts: 683
The wider tyre is going to improve cornering and braking quite noticably but will result in more resistance as you have a larger contact patch on the road. ie. economy, acceleration and speed will suffer a bit.

The lower the profile the harsher the ride as you have less rubber on the sidewall of the tyre to absorb bumps but the trade off is less flex in the sidewall and hence better grip particularly when cornering. I also used to find with bad roads it was very easy to damage the rims with ultra low profile tyres (Sparco Racing wheels weren't made for Sydney roads).

The wheels rim size and offset is also going to impact how wide you can go as the rim has to safely support the tyre width and the tyre shouldn't protrude beyond the wheel arches.

Alot of people are happy with the tradeoffs of going even to 16" (or even larger) with really wide tyres but personally I intentionally chose only 14" Honda (Enki) alloy wheels to maximise performance. I'm considering going the next size wider in tyres when these wear out but not up in wheels or any wider than just an extra 10 wider in tyres.

Guys with 17"s report very noticably worse fuel economy and sluggish takeoff. The car isn't really designed for them but some people are only concerned about looks at all costs.

Tyre compounds will also effect performance. As wonderful as Silica is for grip particularly in the wet it means more resistance. Its interesting to look at the tyres chosen for the hybrid cars as these really maximise a cars economy due to absolute minimum resistance.
 
Reply With Quote
  #6  
Old 10-31-2005, 04:51 AM
New Member
5 Year Member
Join Date: Oct 2005
Location: Greytown, NZ
Posts: 15
gsiy2,
I have just changed my tyres also, from 175x65x14 to 195x60x14. I have noticed a massive increase in cornering ability, but the economy seems to have dropped slightly. I had got up to 18km/l, but now get 16.5-17.7 km/l. Still really good, and I think it is worth it for the added cornering safety.
 

Last edited by vtec; 10-31-2005 at 04:57 AM.
Reply With Quote
  #7  
Old 10-31-2005, 05:32 AM
vividjazz's Avatar
Someone that Posts too much
Join Date: Aug 2005
Location: Sydney, Australia
Posts: 683
Originally Posted by vtec
gsiy2,
I have just changed my tyres also, from 175x65x14 to 195x60x14. I have noticed a massive increase in cornering ability, but the economy seems to have dropped slightly. I had got up to 18km/l, but now get 16.5-17.7 km/l. Still really good, and I think it is worth it for the added cornering safety.
I could certainly make peace with that trade off in economy for cornering. Thanks for the figures.

How many kms did you get out of the factory tyres?
 
Reply With Quote
  #8  
Old 10-31-2005, 04:02 PM
New Member
5 Year Member
Join Date: Oct 2005
Location: Greytown, NZ
Posts: 15
Hi,
I got 100km, as I have just imported it!
It didnt have the factory tyres on it, it had horrible yokohama aspecs, which were really hard. It was sliding at 50km around corners. Now I do 90 around the same corners.
What economy do you get?
 
Reply With Quote
  #9  
Old 10-31-2005, 06:26 PM
vividjazz's Avatar
Someone that Posts too much
Join Date: Aug 2005
Location: Sydney, Australia
Posts: 683
Originally Posted by vtec
Hi,
I got 100km, as I have just imported it!
It didnt have the factory tyres on it, it had horrible yokohama aspecs, which were really hard. It was sliding at 50km around corners. Now I do 90 around the same corners.
What economy do you get?
Yeah mine has those Yoki ASpecs on it now. They work alright with the correct amount of air in them (came very underinflated from the Australian Honda dealer).

Front and rear XForce strut bars ($A100 later) and the vehicle handles like a go kart. I imagine it would be even better with better tyres.

Get around 7L/100KM around city and alot better on the open road 5.4L or less/100KM. Have to take off fairly hard in Sydney traffic and I certainly don't feather the accelerator. Economy didn't pick up until got over 10-11,000km.

If you've got a Jap spec Fit make sure your running premium fuel in it as 95RON is what they are tuned for min in Japan. They detune the car for other markets. You can really feel the difference with the CVT with the better grade fuel.
 
Reply With Quote
  #10  
Old 10-31-2005, 06:40 PM
New Member
5 Year Member
Join Date: Oct 2005
Location: Greytown, NZ
Posts: 15
Hi,
Thanks for info on the fuel, I was wondering about that. The brochure for the 1.5 jazz here says to use 91ron.
Yep, I've driven in Sydney, I know why you have to take off fast!
I guess I can't complain about my economy. Got 6.09 l/100km this morning. Thats driving up a hill to 550m and back down the other side to sea level.
Do you think it will run ok on 91? I'm not worried about performance. I use my other car for that!
(2002 RX7 Type RS)

Cheers
 
Reply With Quote
  #11  
Old 10-31-2005, 07:55 PM
vividjazz's Avatar
Someone that Posts too much
Join Date: Aug 2005
Location: Sydney, Australia
Posts: 683
They don't even sell 91 RON fuel in Japan anymore. Shell in Australia is also fazing it out with regular unleaded going to 95 and Optimax at 98.

I don't think its going to be catostrophic if you run 91 in yours but if it splutters, pings or does anything else unusual just fill up with 95+ the next time.

I like the increased power the different density, higher octane fuel provides. People gain less power with pod air filters and exhaust systems which cost alot more than a few cents a litre. I haven't got an RS RX7 in the garage though but do have a VFR800 bike.
 
Reply With Quote
  #12  
Old 11-15-2005, 09:22 AM
New Member
Join Date: Nov 2005
Location: Melbourne, Australia
Posts: 8
my lancer has 195/50/15 atm. really impressed with the cornering so they'll be getting transferred to the jazz. Provided they'll fit! they should tho...
 
Reply With Quote
  #13  
Old 11-15-2005, 08:35 PM
vividjazz's Avatar
Someone that Posts too much
Join Date: Aug 2005
Location: Sydney, Australia
Posts: 683
Originally Posted by Gazzz
my lancer has 195/50/15 atm. really impressed with the cornering so they'll be getting transferred to the jazz. Provided they'll fit! they should tho...
Very close match. They'll only throw your speedo, mileage and fuel economy figures out by 1.5%. Stock tyres are 185/55/15 or 175/65/14.

Only other issues are offset and stud pattern. Honda's are only 4 stud.
 
Reply With Quote
  #14  
Old 11-15-2005, 08:51 PM
New Member
Join Date: Nov 2005
Location: Melbourne, Australia
Posts: 8
4 stud??!

OH NO!
 
Reply With Quote
  #15  
Old 12-08-2005, 09:36 AM
kokonchi's Avatar
New Member
Join Date: Dec 2005
Location: Fukuoka, Japan
Posts: 4
Thumbs up

Originally Posted by Gazzz
my lancer has 195/50/15 atm. really impressed with the cornering so they'll be getting transferred to the jazz. Provided they'll fit! they should tho...
My jazz have a 205/45/16...love its cornering and grip..FC still around 16+/100km..
 
Reply With Quote
  #16  
Old 01-20-2006, 10:56 AM
Member
Join Date: Jan 2006
Location: Los Angeles
Posts: 50
Originally Posted by vividjazz
Very close match. They'll only throw your speedo, mileage and fuel economy figures out by 1.5%. Stock tyres are 185/55/15 or 175/65/14.

Only other issues are offset and stud pattern. Honda's are only 4 stud.
My Fit now is 195/50 R16. before that, it was 205/45 R16.
I Hv tested my car from 0-100km/h. with 205/45 needs 11.9 sec. with 195/50 needs 10,2 sec. pretty good with the small-one.

Can u Explain 2 my why is this happend?
 
Reply With Quote
  #17  
Old 01-20-2006, 07:18 PM
vividjazz's Avatar
Someone that Posts too much
Join Date: Aug 2005
Location: Sydney, Australia
Posts: 683
Speedo is inaccurate unless you maintain the same total diameter (wheel + tyre).
 
Reply With Quote
  #18  
Old 01-21-2006, 08:08 PM
Member
Join Date: Jul 2005
Location: NY, USA
Posts: 65
if only i can move my 2004 Civic EX's alloy wheel with 195/60/15 to the new Fit..
 
Reply With Quote
  #19  
Old 01-23-2006, 09:40 PM
kps
kps is offline
Honda Fit Forums Moderator
Join Date: Dec 2005
Location: Ontario, Canada
Posts: 374
The two options listed for the US fit are 175/65R14 (base) and 195/55R15 (sport) which differ in rolling radius by some 2.1%. (I can't find the 16" option again but it might have been 195/45R16 which is just 0.2% shy of the 14") Does anyone happen to know which size the speedometer is calibrated for?
 
Reply With Quote
  #20  
Old 01-23-2006, 11:53 PM
JAGmd's Avatar
New Member
Join Date: Apr 2005
Location: VA
Posts: 13
I remember reading that Honda calibrated the Sport version for the larger 195/55/R15 tires because they are easier to find in North America. The versions sold in Asia use 185/55/R15 tires. So if I had a Sport version I would go for a plus 1 from the 195/55/R15 size. I think the best fit is a 205/45/R16
 
Reply With Quote

Thread Tools
Search this Thread
Quick Reply: TIRE questions,sizes, mounting,pressures ANY tire questions


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.