If a puncture occurs, the tyre should be removed for inspection for damage before any attempt is made at remedial action.
The temporary repair of a punctured tyre by inserting a plug from the outside should not be attempted. Although this type of temporary repair is
used widely on cars, the manufacturers strongly recommend that no such repair is carried out on a motorcycle tyre. Not only does the tyre have
a thinner carcass, which does not give sufficient support to the plug, the consequences of a sudden deflation are often sufficiently serious
that the risk of such an occurrence should be avoided at all costs.
The tyre should be inspected both inside and out for damage to the carcass. Unfortunately the inner lining of the tyre - which
takes the place of the inner tube - may easily obscure any damage and some experience is required in making a correct assessment of the tyre
There are two main types of tyre repair which are considered safe for adoption in repairing tubeless motorcycle tyre's.
The first type of repair consists of inserting a mushroom-headed plug into the hole from the inside of the tyre. The hole is prepared for insertion
of the plug by reaming and the application of an adhesive. The second repair is carried out by buffing the inner lining in the damaged area and
applying a cold or vulcanised patch. Because both inspection and repair, if they are to be carried out safely, require experience in this type
of work, it is recommended that the tyre be placed in the hands of a repairer with the necessary skills, rather than repaired in the home workshop.
BMW provide an emergency repair kit for tubeless tyre's as part of the machine's toolkit. This can be used, following the
instructions provided, to repair holes up to 4 mm (0.16 in) in diameter but note that a repaired tyre should not be ridden above 37 mph (60 km/h) or
for more than 250 miles (400 km). The kit is an emergency repair only; the tyre should be renewed as a safety precaution as soon as possible.
Owners stranded with no means of repairing a punctured tubeless tyre should note that the commonly-used trick of fitting a
tube is not recommended by BMW or by the tyre manufacturers. If such a course of action is adopted as an emergency repair, against this advice,
note that the cause of the puncture must be removed first, the tube valve stem must be supported in the rim by the fitting of a suitable spacer
and the machine must be ridden as slowly as possible so as not to cause overheating of the tube. Certain makes of tubeless tyre use large internal
supporting ribs which will rapidly destroy an inner tube due to chafing.
The fitting of tubed tyre's to these wheels is not recommended.