[pre-xk] radial tyres

iam considering a change oftyres on my mk4 jaguar to radial
offered by a number of people and blockley tyers iam
wondering if this will result in better handling the
blockleys are aproven and guaranteed product but they are not
technacily not aradial opinions please peter–
big4
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Big 4
Just check if they accept a tube. If they are tubeless tires you should
consult the manufacturer if it is allowed to put tubes in them.
Regards
Benny-----Original Message-----
From: owner-pre-xk@jag-lovers.org [mailto:owner-pre-xk@jag-lovers.org] On
Behalf Of big4
Sent: Sunday, August 14, 2016 9:37 AM
To: pre-xk@jag-lovers.org
Subject: [pre-xk] radial tyres

iam considering a change oftyres on my mk4 jaguar to radial offered by a
number of people and blockley tyers iam wondering if this will result in
better handling the blockleys are aproven and guaranteed product but they
are not technacily not aradial opinions please peter

big4
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

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In reply to a message from big4 sent Sat 13 Aug 2016:

I remember having this conversation with the local Antique
tyres dealer. he said people come in to change tyres, Obviously
be cause the tyres are old and tired.
f they put radials on , they say ‘’ aren’t radials a big
improvement’'.
he said that considering what they were taking off, any new
tyre would be a big improvement. His personal opinon was that
for our cars the were a bit pointless, but if owners wanted to
pay for them ,it’s not his job to talk them out of it
I thought [ and may be wrong] that radials have a more
flexible sidewall and stiffer tread so on an independent
section on the road.
On a beam axle as we have , the wheels are always going to
keep the same angle to the road anyway.
I’ve only heard good reports on Blockleys.

What ever goes on , you need tubes with heavy duty wells, or
heavy duty all over, due to the different profile beads on
modern manufactured tyres.

I note that the Blockley radials are listed as good for 149
mph, in case the Mk IV has been tweaked, or there are long
steep hills in your area : >)–
The original message included these comments:

iam considering a change oftyres on my mk4 jaguar to radial
offered by a number of people and blockley tyers iam
wondering if this will result in better handling the
blockleys are aproven and guaranteed product but they are not
technacily not aradial opinions please peter


Ed Nantes SS
Melbourne, Australia
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In reply to a message from Ed Nantes sent Sun 14 Aug 2016:

In conjunction with a car’s suspension and springs, the tire
provides some of the spring response. Changing the tire alters
the feel, particularly in tire sidewall construction and
dimensions (e.g., consider the low profile tires on some modern
cars).

Changing the tire tread pattern alters the tire noise spectrum
and volume (in addition to wet and dry grip).

My personal experience with bias ply tires is they initially
have a cold rolling thunk from taking a set when parked
overnight and they ‘‘tramline’’ (steering is ‘‘grabbed’’ by grooves
on the road). Both of these qualities are reduced with radial
tires.

Given these details and the ones identified by earlier posters,
your step of seeking opinions from people with experience on
exactly the step you propose is well motivated. I run a Mark V
with Dunlop Roadspeeds and enjoy the old style road
experiences, but that car is perhaps not similar enough for
your purposes.–
Roger McWilliams
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My experience is that since we’re usually taking off a set that was put on when the old king died, then anything is a dramatic improvement. Also, a modern crossply is going to better than anything made in black and white.
For what it’s worth though , I put Vredestein classic radials on an Alvis TA14 and it was fantastic with them. but I put radials on a Sunbeam 90 and they were too stiff!
I’m pretty sure I’ll put crossplies on the Jaguar MKIV when the time comes however.

Roger
You reckon you have trouble with tramlining : >)
And with the trams on a 4’ 8 1/2" track , the car can drive itself all the way back to the depot.

You reckon you have trouble with tramlining : >)

So Ed, who won the drag-race? :slight_smile:

Well I was quicker off the mark , but those damn trams , they corner like they’re on rails .

Well played Sir, well played!

I remember riding home from a Led Zeppelin concert in Liverpool, aged 16 and newly-legal on my BSA Bantam. Late night, pouring with rain and a scratched blue-tinted visor. I came through the new Mersey Tunnel and ended up on unfamiliar Wallasey cobbled dock roads, criss-crossed with rail lines. Took care to stay central between a pair of slick shiny rails as the little bike stuttered and jarred over the wet cobbles, with my visibility severely hampered by going too slow to blow any raindrops off the blue visor.

All seemed to be going well until the rails veered left and the cobbles veered right, Leaving me to drop nine inches and bounce across a dozen railway sleepers until I came to a halt with the front wheel jammed in the vee of a set of points. Thank god it was late with no rail traffic, because it took me five minutes to drag the two-stroke back up onto the road and away from danger - real or imagined.