Cedia - Upsized tyres scrapping the insides

car'zy · 14th October 2009, 17:11

I had to drive to Mangalore and back couple of times over the last 2 weeks, each time with 4+1 passengers and a little bit of luggage. The rear tyres scraped the body constantly. Im told this is because I'm running on upsized tyres. (I only upgraded the stock to 205/60 R15).

I had this problem with my front tyres as well sometime back, where the tyres would scrap the bumper on curves, I cut off the insides of the bumper skirts a wee bit and it was fixed. Now the problem is with the rear tyres hitting the top insides.

Any suggestions? Does it mean a weak suspension?

Psycho · 14th October 2009, 17:32

You could try spacers or harder springs (which would be difficult to find as most aftermarket ones are the lowering types)

GTO · 15th October 2009, 17:42

Quote:

Originally Posted by car'zy

Im told this is because I'm running on upsized tyres. (I only upgraded the stock to 205/60 R15).

Therein lies the problem. Your stock tyre (195/60/15) had a diameter of 614.93 mm, your upgraded tyre has a diameter of 626.87 mm. Translated, its taller than the stock tyre size and is leading to your rubber scraping the body parts.

vdiatech · 15th October 2009, 19:11

u could try adjusting the wheel arch liners a bit ( roll / push ( not sure of the term!) upwards) . This might help

nitrous · 15th October 2009, 19:13

This isn't 'bottoming out'.

beejay · 15th October 2009, 19:14

These are things which you should live with when you upsize. I had upsized my wagonR and faced the same problem. I bent the inner seam of the rear fenders a bit. This did not solve the problem completely, however was much better.

How much has you car run?

reignofchaos · 15th October 2009, 19:19

Bottoming out is when the underbody hits the road. Its quite surprising though - I had 205/60 R15 until recently and never had a problem even with 5 people and luggage.

You might want to get your suspension checked.

Maybe the springs have softened due to use. Some tightening might help

gaurav_chopra04 · 15th October 2009, 23:20

I always wondered if the 205/60's on cedia would scrape the body, I guess its its better to upgrade to 205/55s. Ground clearance will definately be affected but only marginally which I believe is managable.

In your case carzy, check with the service station guys, they may come up with some solution, get the suspension checked as ROC quoted, than letting your local mechanic fiddle with the suspension. I dont think suspension can go weak so early, but still you never know. Also rear suspension last more than the front one. I expect it to last good for atleast 7-8 years.

car'zy · 22nd October 2009, 18:15

Thanks guys for your perspectives. I thought it was because of the diameter difference, but then had a doubt as I havent seen any fellow Tbhp/Cedia owners having problems with the same tyres. My car has just run 25K, nonetheless, I will get the suspension checked with my service station shortly. Thanks, again!

mindbender · 15th March 2010, 18:25

Have you been able to solve the problem yet? I am also planning to upgrade to the same size of tyres, so wanted to know what the problem might be.

14th October 2009, 17:11	#1
car'zy BHPian Join Date: Jul 2006 Location: Bangalore Posts: 100 Thanked: 0 Times View My Garage	Cedia - Upsized tyres scrapping the insides I had to drive to Mangalore and back couple of times over the last 2 weeks, each time with 4+1 passengers and a little bit of luggage. The rear tyres scraped the body constantly. Im told this is because I'm running on upsized tyres. (I only upgraded the stock to 205/60 R15). I had this problem with my front tyres as well sometime back, where the tyres would scrap the bumper on curves, I cut off the insides of the bumper skirts a wee bit and it was fixed. Now the problem is with the rear tyres hitting the top insides. Any suggestions? Does it mean a weak suspension? Last edited by car'zy : 14th October 2009 at 17:13.
	() Thanks

14th October 2009, 17:32	#2
Psycho Senior - BHPian Join Date: Jul 2004 Location: Bangalore Posts: 1,043 Thanked: 111 Times View My Garage	You could try spacers or harder springs (which would be difficult to find as most aftermarket ones are the lowering types)
	() Thanks

15th October 2009, 19:11	#4
vdiatech BHPian Join Date: Mar 2009 Location: Bangalore Posts: 414 Thanked: 10 Times	u could try adjusting the wheel arch liners a bit ( roll / push ( not sure of the term!) upwards) . This might help
	() Thanks

15th October 2009, 19:13	#5
nitrous Senior - BHPian Join Date: May 2004 Location: UAE/Lon/Madras Posts: 6,965 Thanked: 329 Times View My Garage	This isn't 'bottoming out'.
	() Thanks

15th October 2009, 19:14	#6
beejay Senior - BHPian Join Date: Apr 2009 Location: The Nilgiris Posts: 1,965 Thanked: 212 Times View My Garage	These are things which you should live with when you upsize. I had upsized my wagonR and faced the same problem. I bent the inner seam of the rear fenders a bit. This did not solve the problem completely, however was much better. How much has you car run? Last edited by beejay : 15th October 2009 at 19:14. Reason: How much....
	() Thanks

15th October 2009, 19:19	#7
reignofchaos Senior - BHPian Join Date: Apr 2007 Location: Bangalore Posts: 2,549 Thanked: 2,494 Times View My Garage	Bottoming out is when the underbody hits the road. Its quite surprising though - I had 205/60 R15 until recently and never had a problem even with 5 people and luggage. You might want to get your suspension checked. Maybe the springs have softened due to use. Some tightening might help
	() Thanks

15th October 2009, 23:20	#8
gaurav_chopra04 Senior - BHPian Join Date: Oct 2008 Location: New Delhi Posts: 1,264 Thanked: 574 Times View My Garage	I always wondered if the 205/60's on cedia would scrape the body, I guess its its better to upgrade to 205/55s. Ground clearance will definately be affected but only marginally which I believe is managable. In your case carzy, check with the service station guys, they may come up with some solution, get the suspension checked as ROC quoted, than letting your local mechanic fiddle with the suspension. I dont think suspension can go weak so early, but still you never know. Also rear suspension last more than the front one. I expect it to last good for atleast 7-8 years. Last edited by gaurav_chopra04 : 15th October 2009 at 23:21.
	() Thanks

22nd October 2009, 18:15	#9
car'zy BHPian Join Date: Jul 2006 Location: Bangalore Posts: 100 Thanked: 0 Times View My Garage	Thanks guys for your perspectives. I thought it was because of the diameter difference, but then had a doubt as I havent seen any fellow Tbhp/Cedia owners having problems with the same tyres. My car has just run 25K, nonetheless, I will get the suspension checked with my service station shortly. Thanks, again! Last edited by car'zy : 22nd October 2009 at 18:18.
	() Thanks

15th March 2010, 18:25	#10
mindbender Newbie Join Date: Jul 2009 Location: Bangalore Posts: 7 Thanked: 0 Times	Have you been able to solve the problem yet? I am also planning to upgrade to the same size of tyres, so wanted to know what the problem might be.
	() Thanks