Front tyres who uses what

Post Reply
robert.copley1
SSVC Member
SSVC Member
Posts: 649
Joined: Sun Aug 15, 2004 12:11 pm

Front tyres who uses what

Post by robert.copley1 »

dont want to run 185s looking for somthing narrower but not to low a profile :?:

flatbeat
SSVC Member
SSVC Member
Posts: 1894
Joined: Thu Oct 04, 2007 4:06 pm
Location: Gloucester

Post by flatbeat »

I'm running 165x65x15 fronts and 185x65x15 on the back. Seems to work well. The current very popular choice at the mo' for the front is Smart Car 175x55x15. I think they give a harsher ride as they are low profile but if you like the slammed look away you go :D
Packed a few belongings and headed out to Pirates Cove. In my buddy’s old grey Kombi we rolled until the gas got low.....

1965 11 Window aka 'Rustina'.
1961 Beetle.

flatbeat
SSVC Member
SSVC Member
Posts: 1894
Joined: Thu Oct 04, 2007 4:06 pm
Location: Gloucester

Post by flatbeat »

Oops! just seen you don't want to go to low.
175x60x15 is also a good choice for the front, but I think what I said before is a good combo. :wink:
Packed a few belongings and headed out to Pirates Cove. In my buddy’s old grey Kombi we rolled until the gas got low.....

1965 11 Window aka 'Rustina'.
1961 Beetle.

User avatar
dubberdean
SSVC Member
SSVC Member
Posts: 1264
Joined: Sun May 11, 2008 9:24 am
Location: Lincoln

Post by dubberdean »

Can Smart car tyres support the weight of a fully laden splitty?

There must be about 2 tonne difference in weight!

Sweet Rides
Registered user
Posts: 2624
Joined: Wed Oct 18, 2006 7:55 pm
Location: Out in the sticks...

Post by Sweet Rides »

dubberdean wrote:Can Smart car tyres support the weight of a fully laden splitty?

There must be about 2 tonne difference in weight!
Very often a pattern emerges where personal safety (and that of other road users) takes a back seat in favour of image .

Choc
SSVC Member
SSVC Member
Posts: 3425
Joined: Wed Jun 28, 2006 7:16 pm
Location: Derbyshire

Post by Choc »

175x55x15 Conti's work fine on the front on my '65.

ladysiphon
Registered user
Posts: 112
Joined: Sat Jan 05, 2008 11:48 am
Location: barrow-in-furness

Post by ladysiphon »

165/65 14 works on ours,

flatbeat
SSVC Member
SSVC Member
Posts: 1894
Joined: Thu Oct 04, 2007 4:06 pm
Location: Gloucester

Post by flatbeat »

dubberdean wrote:Can Smart car tyres support the weight of a fully laden splitty?

There must be about 2 tonne difference in weight!
The smart car tyre is suggested for the front only, anything that small on the back and you'd be revving the nuts off it :)
Packed a few belongings and headed out to Pirates Cove. In my buddy’s old grey Kombi we rolled until the gas got low.....

1965 11 Window aka 'Rustina'.
1961 Beetle.

bobley
Registered user
Posts: 4544
Joined: Tue Sep 19, 2006 8:53 am

Post by bobley »

Smart car tyres come in many different sizes so a little clarity is needed I think.

Fact - the plated front axle weight for a split is 950kg, therefore each tyre must be rated to support half of that (i.e. 475kg).

165/50/15 = 73 rating = 365kg = not suitable
175/55/15 = 77 = 412kg = not suitable
165/65/14 = 79 = 437kg = not suitable
165/65/15 = 81 = 462kg = not suitable (but getting close).

I rang Bridgestone UK to discuss the above points. Based on the standard VW specification and the given axle load requirements their recommendation is a 185R14 for 14 inch wheeled vehicles.

185/80/14 = 90 rating = 600kg. This is suitable for use on the rear also.

As I'm now running 15s I've switched to 185/65R15 to keep the same width and rolling circumference.

185/65/15 = 88 = 560kg. This is marginally under specced for the rear of a firetruck or 1 tonne van but you can get reinforced versions with 92 load rating.

If you want to run a lower profile at the front then you need to make sure you have a load rating of 82 or higher. A 185/55R15 will meet this criteria.

------------------

Thats all the legal technicalities out of the way. What you decide to fit to your camper is your responsibility. If you know you wont load it to the max then you can argue for a lower load rating. Its not legal but if you didn't exceed the weight limit of the tyre then it MAY work but I doubt you'll ever find a tyre manufacturer endorsing such practices. If you were adament that you wouldn't reach such loads then you can legally downrate the spec of the axle to such a value that the tyres could handle. This costs about £60 to do properly but it leaves you with a less capable vehcile.

At the end of the day you can fit what you like, you just need to be prepared to accept the consequences.

Post Reply