Maximum wheel width allowed for a 345/35 X 15 tyre
Discussion
andysv said:
the recommended rim width for a 345 is 11 to 13.5 inches.
Not only is that a very wide set of parameters, but could you also quote a source for this info? The reason I say that is because according to the link below, the maximum tyre width on an 11inch rim should be around 305mm. http://www.tyres-pneus-online.co.uk/equivalency-ta...
According to the above, you would probably need 13 inch rims minimum......
One should be careful with tyre/rim sizes - especially when taking advice from the internet. I would certainly insist on a source for the info at least, in order to avoid being killed through lazy ignorance in the worst case scenario
i realised they were for a countach as not sure that any production car has wider tyres? On the Countach with the 12'' rims the tyres look quite streatched and wouldnt think going to 13.5 would be a risk I would take on something which may have fairly wild side movements as a trike possibly could?
i suspect it may be difficult to find wheels to suit as 15 is small and most new cars are 17+
if you need pics of the tyres wheels etc i think there was some good ones on the scotland forum of pics from last sundays Italian car and bike day showing wheel tyres etc
Paul
i suspect it may be difficult to find wheels to suit as 15 is small and most new cars are 17+
if you need pics of the tyres wheels etc i think there was some good ones on the scotland forum of pics from last sundays Italian car and bike day showing wheel tyres etc
Paul
christer said:
andysv said:
the recommended rim width for a 345 is 11 to 13.5 inches.
Not only is that a very wide set of parameters, but could you also quote a source for this info? The reason I say that is because according to the link below, the maximum tyre width on an 11inch rim should be around 305mm. http://www.tyres-pneus-online.co.uk/equivalency-ta...
According to the above, you would probably need 13 inch rims minimum......
One should be careful with tyre/rim sizes - especially when taking advice from the internet. I would certainly insist on a source for the info at least, in order to avoid being killed through lazy ignorance in the worst case scenario
they all vary slightly, a few are showing my stats, i don't want the blame for killing our man 
Edited by andysv on Thursday 19th August 16:58
i realised they were for a countach as not sure that any production car has wider tyres? On the Countach with the 12'' rims the tyres look quite streatched and wouldnt think going to 13.5 would be a risk I would take on something which may have fairly wild side movements as a trike possibly could?
i suspect it may be difficult to find wheels to suit as 15 is small and most new cars are 17+
if you need pics of the tyres wheels etc i think there was some good ones on the scotland forum of pics from last sundays Italian car and bike day showing wheel tyres etc
Paul
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Hi Paul
www.Imagewheels.co.uk make wheels to order, they do a 15" right up to 16" wide.
The trike will be very light..it is a single seater no longer than a motor bike and narrowed 8" on each side.
I think I'll stick with 12" wide.
Regards
Brian
i suspect it may be difficult to find wheels to suit as 15 is small and most new cars are 17+
if you need pics of the tyres wheels etc i think there was some good ones on the scotland forum of pics from last sundays Italian car and bike day showing wheel tyres etc
Paul
__________________________________________________________________________________________________
Hi Paul
www.Imagewheels.co.uk make wheels to order, they do a 15" right up to 16" wide.
The trike will be very light..it is a single seater no longer than a motor bike and narrowed 8" on each side.
I think I'll stick with 12" wide.
Regards
Brian
brian search the american sites (spell tire not tyre) they cater for the larger sizes here's a basic guide http://customwheelsmarket.com/rimwheelwidth1.html
Re Jalpa/Silhouette
I have seen a photo of an US Jalpa fitted with 11" Bravos and 345/35 15 tyres. They fit under the arches OK and look great but I had previously wondered about the wisdom of doing this.
The Silhouette has 285/40 15 tyres on 11" Bravos. Given the occasional difficulty in obtaining this size I wonder if 345/35 15 would fit under the arches of a Silhouette. Hmmm...
I have seen a photo of an US Jalpa fitted with 11" Bravos and 345/35 15 tyres. They fit under the arches OK and look great but I had previously wondered about the wisdom of doing this.
The Silhouette has 285/40 15 tyres on 11" Bravos. Given the occasional difficulty in obtaining this size I wonder if 345/35 15 would fit under the arches of a Silhouette. Hmmm...
From the chart blurb - what I had not previously appreciated
"Choosing a wheel near the middle of the range will give a balance between ride quality and handling. A wider wheel will improve handling at the expense of ride quality, while a narrower wheel will improve ride quality at the expense of handling. Consider these compromises when selecting wheels."
"Choosing a wheel near the middle of the range will give a balance between ride quality and handling. A wider wheel will improve handling at the expense of ride quality, while a narrower wheel will improve ride quality at the expense of handling. Consider these compromises when selecting wheels."
No compromise, as long as it looks the best it can, ride quality is un-important to me.
My last trike I built, which was featured in BSH bike mag, burnt your legs if you were not careful and on one trip I took skin off my arm because I caught it on the wheel at 70 mph (no mud gaurds). In my opinion the only way to build a trike.
Regards
Brian
My last trike I built, which was featured in BSH bike mag, burnt your legs if you were not careful and on one trip I took skin off my arm because I caught it on the wheel at 70 mph (no mud gaurds). In my opinion the only way to build a trike.
Regards
Brian
The general rule of thumb for any wheel is the wheel should be 90% of the tyre width with slight a allowance (1/2in) either way.
90% of 345mm = 310.5mm = 12.2in
So for 345mm width tyre a 11.5in to 13in wheel would be fine with 12in being the optimal.
If in doubt check with the tyre manufacturer.
90% of 345mm = 310.5mm = 12.2in
So for 345mm width tyre a 11.5in to 13in wheel would be fine with 12in being the optimal.
If in doubt check with the tyre manufacturer.
Brian Jackett said:
No compromise, as long as it looks the best it can, ride quality is un-important to me.
My last trike I built, which was featured in BSH bike mag, burnt your legs if you were not careful and on one trip I took skin off my arm because I caught it on the wheel at 70 mph (no mud gaurds). In my opinion the only way to build a trike.
Regards
Brian
brian like you i have a vehicle that is only about looks, it's a 73 beetle underneath with 12" cut from the length, has huge wheels and tyres, drives terrible, doesn't handle or stop well, has no doors or roof but it is totally legal and turns more heads than my lambo, i appreciate were you are coming from.My last trike I built, which was featured in BSH bike mag, burnt your legs if you were not careful and on one trip I took skin off my arm because I caught it on the wheel at 70 mph (no mud gaurds). In my opinion the only way to build a trike.
Regards
Brian
13.5 inch rims it is then
Edited by andysv on Friday 20th August 21:16
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