D1.9 Formula
D1.9.9 Tyres:
This class is limited to 5in diameter wheels with a maximum tyre width of 7.1in.
Dry: Dunlop Front: 10 x 4.5 x 5 DCH. Rear: 11 x 7.1 x 5 DCH or DDH.
Dunlop have supplied a consignment of the replacement PCA-free compound rear tyres marked DDH
instead of DCH. Future consignments will revert to DCH marking so due to force majeure it is
necessary to permit the use of DDH rear tyres in the above classes as shown underlined above.
Approved by the MSA on 25