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Post by rgswisstex on Nov 11, 2015 23:56:51 GMT
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Post by canuck on Nov 12, 2015 13:58:09 GMT
Hei Bruce it was me that posted the tire size calculator, Rolf in Texas Hello Rolf, My apologies, (since corrected) and please do not take it personally, I call all sorts of people by the incorrect name. I have only one piece of advice, "don't ever get old" .
Now back to this tire issue. Looking at the photo in your avatar the tires on your Riley look 'mighty'. If you corner very hard/fast what happens? In my case with the 'dicey' cross ply I have, the result is the tire breaks traction, I suspect in your case a decent solid grip with some side wall flexing etc.? FWIW I did install a anti roll bar to help reduce body roll, and the ARB does do its job, only now exacerbates the lack of tire grip, particularly the front wheels. I also think the addition of modern 'grip' tires on the Riley is playing a part in the pre mature failure of the rear axle shafts?
Back to you guys.
B
FWIW we do drive our Riley 'aggressively here , below is three of playing at Watkins Glen, NY race track. Cross ply on the Black car and Firestone F560 on duo tone lead car.
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Post by rgswisstex on Nov 12, 2015 14:06:47 GMT
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Post by Mabel on Nov 12, 2015 16:52:26 GMT
Bruce, my tyres also look a bit chunky.......don't do cornering at speed though. Handles like a camel on stilts just driving normally and get tyre squeal regularly in the local supermarket car park even when driving very slowly. Wouldn't like to try anything at speed at all......perhaps I've other problems lurking....
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Post by deltalimamike on Nov 12, 2015 18:16:04 GMT
I wish I was at a position to worry about tyres! Bookmarked thread for future reference though.
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Post by canuck on Nov 12, 2015 21:21:02 GMT
Graham, Mabel looks great. I am so jealous of you guys that have these lovely cars. George is such a beater, however has a heart of gold.
No I do not think you have any other problems. After your encounter with the French country side, and subsequent repairs I have to think your front end suspension has been thoroughly addressed.
The handling characteristics I read are I think to my point. The tire we are buying, (lack of choice?) is not suitable for the width wheel rim the Riley has. As much as my cross ply tires complain at corners they are predictable and I have grown accustomed to the behavior. Let's see what you find at Mr. Wares place. I think you will see some cross ply Dunlop D75 tires fitted to the MM, OE equipment and pretty good for a 48hp car.
FWIW how do you chaps squeeze the 'oversize' spare wheel & tire into its proper spot, must be tight fit, no?
B
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Post by Mabel on Nov 12, 2015 22:13:48 GMT
Bruce, I partially deflated the tyre and rammed it in. If I ever have to use it, and hopefully I won't, I'll see how difficult it is to get it out. I therefore carry an old foot pump that I picked up at a flea market for £2. Bargain.
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Post by Mabel on Nov 12, 2015 22:15:12 GMT
Bruce......yes Mabel looks good but this is her best side and what you can't see is the plastic filler that has been used and which is just about to fall out. I think once I start poking about I'll find a lot more than I bargained for.
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Post by canuck on Nov 13, 2015 17:15:21 GMT
The Morris Minor centre supplied me with some 4.5"wide wheels i fitted 165x14 vredestein tyres but cannot report on tyre performance as i am still restoring my Riley but the 165 tyre fits better on the wider rims hope this helps.
Mr. Cooper, If possible could you post a photo of this tire/wheel combination? I believe this is the ultimate solution to our dilemma. So much so that I am considering purchasing 4 MM van wheels and have them dispatched to Canada. Another option I am entertaining is the use of MGB early steel wheels. Curiously the Riley hubcap fits this wheel. As well I have a set of these in my 'inventory'.
The MG and Riley PCD is different as well as the offset so the use of a adapter/spacer will be required.
Probably will need to change out the wheel studs as well.
Back to you lot Bruce
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Post by rgswisstex on Nov 13, 2015 21:41:31 GMT
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Post by canuck on Nov 14, 2015 16:51:10 GMT
I have been reflecting on the comments posted here. FWIW it would appear that we would be safer (although less 'modern') to install the correct size tire to fit the narrow Riley rim. That being the Dunlop D75 tire. I am aware that this tire is not a radial tire but I am thinking there will be zero chance of it rolling off the rim as we seem to fear with the current size tires fitted by some. My cross ply tires do 'complain' in hard cornering but I can safely enter a corner at speed. I may loose some traction, but is that due to a very bad tread design on the tire I have? (not a Dunlop tire) Somehow drifting through a corner in the riley is fun once I got accustomed.
These weekend warriors did it;
Without fitting a wider road wheel I see little 'safe' choice.
Bruce
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Post by rgswisstex on Nov 14, 2015 17:36:00 GMT
I agree Bruce about the safety, but I am not racing the riley, only drive to car shows and some Sunday drives, my tires are good for 4.5 inch wide rims, so I am only off .5 inch
Rolf
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Post by canuck on Nov 14, 2015 18:56:01 GMT
I agree Bruce about the safety, but I am not racing the riley, only drive to car shows and some Sunday drives, my tires are good for 4.5 inch wide rims, so I am only off .5 inch
Rolf Rolf, Yet again, another great looking Riley, well done! FWIW not a point of racing but being safe in all situations. Your statement, "4.5 inch wide rims, so I am only off .5 inch " is very interesting, and to my point. What type of rim/steel wheel do you have installed on your Riley? As I show very clearly below, and my previous post, the standard Riley wheel is 3" wide.
This is the original question from Graham, he needs a tire you seem to have one??
Bruce
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Post by blaxy on Nov 17, 2015 19:13:19 GMT
Hi Guys, My One Point Five is fitted with Nankang 155 80R/14 Radials and they perform very well in the dry, although it has not yet rained while she has been out.
These fit the standard wheels and I believe are the widest tyre that you can fit that will still allow the Spare wheel to be stored in its correct under boot floor location.
I would be interested to hear what pressure you inflate them to and what affect it has on your road speed compared to that indicated by the speedometer?
Dave
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Post by Mabel on Nov 18, 2015 18:05:49 GMT
Dave
Won't be seeing my 1.5 until next week I guess and I regret to say that I don't know what pressure the tyres are......OK I know that's wrong. When I get to the lock-up where she's stored I'll take her down to the local garage and surprise myself and provide you with the info.
My road speed is considerably less than what is being shown on the speedometer. For instance, when it reads 25 mph, I'm doing 30 (ish) mph which is around 16% different. As such, each time I take her out there's a good chance I'll not be driving in accordance with the speed limit. Not sure that's down to the tyre size though. Speedo cable changed and made no difference so that's another problem to solve. Speedo drive faulty, speedometer needs re-calibrating perhaps or something else, but that's a problem for another day and probably for another thread on it's own. Any suggestions now would be welcomed though.
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