Quote:
Originally Posted by Ghost Thanks for the explanation, its no use to me saying you must do this, or that, without an explanation. But still the question as to why they were allowed in the first 2 seasons, then vetoed what happened/or grounds for the change. |
possibly because when the tyre manufacturers were first approached about DD there was no Class B, and the rules allowed for tuned 675cc machines which may have misled them into believing the bikes would be more powerful than they actually are. Not sure what GS's 620 with the Baines 675 kit made in the way of Horsepower.
Since we have changed to H rated tyres after the 2006 season the Class B lap records have certainly improved in some cases to the tune of 2 seconds.
My belief is that this is in part due to the quicker warm up of the H rated tyre over the Z rated ones. Which in turn allows the riders to get up to speed earlier in the race and have more time left before the chequred flag to improve their times.
I suspect this mainly applies the newer the tyre is and after a period of use and several heat cycles this advantage drops away.
There are probably a few out there that try and exploit this possibility and fit new tyres at a greater rate than many of the others.
A Bit of DD History regarding tyres
From a very early 2005 Rule Book 23/1/05
1.6.7 Tyres
This section is still To Be Advised. There are several options currently being considered including Control tyres, tyre warmers and wets.
Following the meeting of DD registered entrants after the AGM held 12th Feb 2005 this announcement was made
Tyres
After much investigation and deliberation, it was agreed by the entrants that a single moulded tread road tyre should be used, that wets & warmers would not be allowed in this first year of the series.
Accordingly the decision was taken that the Pirelli Diablo would be the only tyre used by entrants this year. At present the cost to entrants will be £120 + VAT per pair, we are working on a further discount and hope to have further news at the end of the month. At the same time we will confirm where you order them from.
In addition we are making arrangements for the support and supply of tyres at all of the New Era meetings with Pirelli. Following a meeting on the 24th of February, we hope to be able to announce further goodies that will be made available.
It was also agreed at the meeting after the AGM that in the event that the majority of entrants found that they wished to be allowed to use a full wet tyre, after the initial races, then the way would be open for a petition to be put to the committee to allow their use in the 1st year.
----------------------------------------------------------------------
Later on it was announced that Pirelli as part of there sponsorship would donate a pair of tyres at each meeting to be awarded as prizes
----------------------------------------------------------------
Then in 2006 we had this option
Ok Folks,
The news that you have all been waiting for regarding tyres this year! The negotiations have been protracted, but we think will serve the whole grid well this year and the price is very competitive. We are recommending this arrangement to the riders.
What do you need to do to have a say? Just send a simple Tyres Yes or No to
Desmodue@ducatisportingclub.com no later than 12.00 on Sunday the 5th of March and a simple majority will decide. We will announce the result on Sunday afternoon.
Desmo Due Tyres 2006
As most of you will be aware we have been in negotiation with Pirelli regarding sponsorship of tyres for the series, owing primarily to budgetary reductions Pirelli are not going to supply us with tyres as prizes for 2006.
However, they have offered support for the series through Holbeech Tyres, who attend all New Era Meetings.
What does this mean for the series:
1) We will get price support from Pirelli for the tyres we buy. The price is quoted at £135.00 inc VAT fitted. These are for a 120/60-70 front and 160 rear.
2) Prizes in the form of merchandising (caps, fleeces, polo and t-shirts, etc) will be provided.
3) Pirelli will provide UK WSB tickets for this years races at Brands and Silverstone. Numbers are still to be confirmed, but it is hoped they will allow access to the paddock and possibly Pirelli hospitality.
Ok what does that mean for the series:
All bikes will be required to carry Pirelli and Holbeech tyres stickers on their machines. These will be provided.
1) All tyres used in the series this year will be stamped by Holbeech tyres. Anyone found using tyres without these markings will loose their points.
2) At Cadwell Park on the 25th/26th March, each machine will be required to be taken to Holbeech tyres truck; the tyres fitted to the machine and one spare pair (if already owned) will be marked by them.
3) Any subsequent tyres will need to be purchased from Holbeech tyres. These will be marked at time of sale. You can either have them fitted at the track or sent through by post and fitted locally.
Given that we have 62 bikes on the two grids, it will be necessary for you to phone Holbeech on 01406-423611, 10 days before any race meeting, if you want to have them put tyres on the truck for you. This is particularly true before Brands Hatch (for Assen) and at Castle Combe/Oulton, when it is expected that most of the grid will be looking to have new tyres fitted (please see below).
They will carry a number of sets to meet immediate requirements at each meeting
------------------------------------------------------------------
The above option WAS taken up that year AS voted for by the RIDERS.
I was on the RC in 2006 as the Class B rider’s rep so I got to see more of the information than most other riders