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neilwalker

United Kingdom
10 Posts
Posted - 02/05/2024 :  12:25:46  Show Profile
I wondered if anyone could give me advice as to the best tyres (400x19) to fit to my PB, I intend to use it for rallies and some racing. The choice seems to be between Excelsior Comp H and Blockleys?

NHWalker

coracle

United Kingdom
1935 Posts
Posted - 02/05/2024 :  13:05:21  Show Profile
Or Longstone: https://www.longstonetyres.co.uk/tyres/400-19.html

Each will have their favourite but many go for Blockeys. I have been happy with Longstones.
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neilwalker

United Kingdom
10 Posts
Posted - 02/05/2024 :  13:13:28  Show Profile
Thank you.

NHWalker
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DK6780

United Kingdom
248 Posts
Posted - 02/05/2024 :  13:26:57  Show Profile
Both Blockley and Longstone are good products, but both may be wider than you expect. There's more tread depth on the Longstone but the sidewall is generally softer on the Blockley.
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bob

United Kingdom
335 Posts
Posted - 02/05/2024 :  18:03:22  Show Profile
Are the Blockleys still prone to flat spotting
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colintf

United Kingdom
1501 Posts
Posted - 02/05/2024 :  18:51:13  Show Profile
Most of the racers I believe are on Blockleys

Colin Murrell
PA0786 (D0285 previously)
Photographer for MGCC (LeMans Classic, Oldtimer Grand Prix etc) & MG Motor (BTCC 2012-5)

https://www.triple-mregister.org/racing.asp

http://www.triple-mracing.com/
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Simon Johnston

United Kingdom
6118 Posts
Posted - 02/05/2024 :  18:53:28  Show Profile
Have you personal experience of flat spotting, Bob?

Simon J
J3437
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bob

United Kingdom
335 Posts
Posted - 02/05/2024 :  19:17:26  Show Profile
No Simon, but it had been well documented within this forum that they do after long periods of standing.
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Simon Johnston

United Kingdom
6118 Posts
Posted - 02/05/2024 :  19:46:17  Show Profile
Well, I’ve had two sets of Blockleys on my J2 in the last twelve years and despite lengthy periods with the car just sitting in the garage, I have seen no evidence of flat spotting. So perhaps not prone after all?

Simon J
J3437
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coracle

United Kingdom
1935 Posts
Posted - 02/05/2024 :  22:33:46  Show Profile
I never experienced flat spotting until after the chaps in the photo laid a fancy new road surface past my house.


When I ventured out onto the new surface, despite appearances it was just as bumpy as before.

However, when I returned home, it had inexplicably become very smooth.

Flat spotting does occur with Longstones but soon subsides.
Edited by - coracle on 02/05/2024 22:42:38
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Onno

Netherlands
1044 Posts
Posted - 03/05/2024 :  06:36:05  Show Profile
and if competitoon is on your mind perhaps go for 4.50 wide tyres.
Blockley on road and race car and a happy customer here.
No trouble with flatspotting but I do raise the pressure to 3 bar when I expect longer periodes of incactivity.

Onno "J,D,M" Könemann
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neilwalker

United Kingdom
10 Posts
Posted - 03/05/2024 :  09:38:14  Show Profile
Thank you all for the comments. I think 450 x 19 Blockleys will be the way to go.

NHWalker
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