List 1B tyres

Information / Questions and Discussion -
Imps and Imp based Motorsport stuff from the olden days and current

List 1B tyres

Postby OldImp » Wed Jan 21, 2015 10:37 am

I have just been reading the latest MSA newsletter and came across a short article on list 1B tyres. The article said that tyres marked with a star in the blue book would no longer be legal for motorsport in the road going classes after this year. A new EU regulation means that many of these tyres now make too much noise or have poor wet weather grip and so can't be given an E marking and will no longer be able to be sold as road tyres.
With a little apprehension I checked the blue book and found that every single tyre but one is marked with a star. Now these tyres are used by the majority of road going competitors in sprinting and represent a large outlay of money.
Does anyone have any more information about this.
Bob
OldImp
 
Posts: 28
Joined: Mon Jan 24, 2005 1:42 pm
Location: Brighton
Club Member: Yes
Car Model: Singer Chamois

Re: List 1B tyres

Postby The Nun » Wed Jan 21, 2015 10:47 am

:roll: Is there anything the EU comes up with that doesnt cost us anything??
Peter Nunn...ey im member 00033
The Nun
 
Posts: 7723
Joined: Tue Jan 23, 2007 7:02 pm
Location: South
Club Member: Yes
Car Model: Imp x 2

Re: List 1B tyres

Postby pubcrawler » Wed Jan 21, 2015 11:57 am

If this the section you are referring to it only says future withdrawal, I can't see next year anywhere?
There are a few in list 1A also but not as many as 1B :o
Luckily I bought a set of Yokohama A539's last year (list 1A) and have just checked and they're not marked with an asterisk :wink:
Thanks for highlighting this, lets hope the future withdrawal is a few years away for compeitors who have recently made a purchase.

Edit...........
Date found..Blue book states its 31.12.2015 (L2.5) :roll:

Permitted tyres
In the 2015 MSA Yearbook, Section (L) Permitted Tyres,
many of the tyres listed in List 1B are marked with an
asterisk to indicate future withdrawal from the list. To clarify,
this is because there are some demanding criteria being
introduced for tyres to be E-marked, covering areas such as
road noise, durability and wet surface performance etc. The
tyre manufacturers are well aware that many of their existing
“sports performance tyres” will not meet these criteria, so
manufacture will cease over the next few months.
Owner of the Green Heartbeat Imp from Aidensfield!
Martin Parkes.
User avatar
pubcrawler
 
Posts: 1109
Joined: Wed Jan 25, 2012 10:26 am
Location: West Midlands
Club Member: Yes
Car Model: 1965 Hillman Imp, 1971 Austin Healey Sprite MkIV

Re: Asphalt rally tyres

Postby rje » Wed Jan 21, 2015 4:18 pm

You will all know that it's impossible to find a decent tyre in 12" so I have been looking at wheels and tyres options for my Appendix K Rallye Imp (nearly finished at last) in 13" . I am only interested in rallying on asphalt where the situation is even worse than it is for gravel tyres. Within the FIA minimum diameter limit of 530mm in period F (490mm in period G) it looks like I could use 185x60x13 tyres from Avon, Yokohama etc., Would a 185x60x13 on a 5" rim fit under the front arches without fouling on full lock?
User avatar
rje
 
Posts: 59
Joined: Fri Apr 06, 2007 12:47 pm
Club Member: Yes

Re: List 1B tyres

Postby bks974c » Wed Jan 21, 2015 11:07 pm

Yes, subject to the offset of the wheel, although there maybe slight rubbing on the drivers side in my experience but has never been sufficient to cause an issue.

Scott
bks974c
 
Posts: 2560
Joined: Thu Aug 19, 2004 4:26 pm
Location: Edinburgh, Scotland
Club Member: Yes
Car Model: all the above


Return to Motorsport Forum

Who is online

Users browsing this forum: No registered users and 2 guests