Karl,
See below the two topics as you mentioned.
I still stand by my understanding that there is a max psi and max load to adhere to.
3 - Load-Carrying CapabilitiesTOP
Tires offering different load-carrying capacities are available. Consider carefully the weight of the motorcycle, whether it will carry passengers and the weight of any optional equipment. Remember, the load-carrying capability of the tires is also reduced by underinflation. It is possible to overload a tire even though it is the size specified by the motorcycle manufacturer. Maximum loads and the corresponding pressures are indicated on the sidewall of all Dunlop street tires.
Before riding, the motorcyclist must determine the total weight of luggage, equipment and rider(s) to be added to the motorcycle. Instruct your customers that the total weight of luggage, equipment and rider(s) must never exceed the vehicle load capacity found in the motorcycle owner’s manual.
Instruct your customers not to pull a trailer behind their motorcycle. Trailers may contribute to motorcycle instability, grossly exaggerated tire stresses and overload. Such stresses and overload can cause irreversible damage resulting in sudden tire failure, accident, injury or death. Dunlop does not warrant tires used on motorcycles fitted with trailers.
Sidecars should not be fitted unless approved by the motorcycle manufacturer
8 - Tire Pressures (see also Tire Mounting)TOP
Follow pressure recommendations shown on the Dunlop Motorcycle Tire Application Guide. Contact Dunlop if year and model are not shown on the current guide and the owner’s manual does not list pressure settings for Dunlop tires.
Keep in mind that hard cornering, passengers, heavy loads and sustained high speeds will require higher pressures (up to that indicated on the sidewall).
CHECKING TIRE PRESSURE IS THE MOST IMPORTANT TIRE MAINTENANCE FUNCTION YOU AND YOUR CUSTOMER CAN PERFORM.
For high-speed, fully loaded or dual-riding touring-motorcycle applications, inflate tires to maximum recommended by vehicle manufacturer for Dunlop fitment. Never exceed maximum load indicated on tire sidewall or vehicle capacity load found in owner’s manual, whichever is lower.
Underinflated tires can result in imprecise cornering, higher running temperatures, irregular tread wear, fatigue cracking, overstressing and eventual failure of the tire carcass, or loss of control, which could cause accident, injury or death.
Overinflating tires does not increase load-carrying capacity, but will result in a hard ride and accelerated tire wear in the center of the contact patch.
Advise your customers to check cold tire pressure frequently with a good-quality gauge that holds a reading, and always before extended trips.
Loss of pressure may occur due to worn-out or badly seated valve cores. Check valve cores, and if necessary, tighten for correct seating, or remove and replace them. A metal or hard-plastic valve cap with an inner gasket should be used and installed finger-tight to protect the valve core from dust and moisture and to help maintain a positive air seal.
Loss of pressure may also be caused by tube damage, as well as cracked rubber tube or tubeless valve stem bases. Inspect rim bands, tubes and valves. Replace if damage or cracking is noted.
Repeated loss of inflation pressure may result from undetected tire damage. Visually inspect tires for punctures, cuts, abrasions, cracks, bulges, blisters or knots. It will be necessary to dismount the tire to complete an inspection for internal damage and any need for repair. See the Tire Repair section. Only certain punctures in the tread area may be repaired, and only if no other damage is present.
The appearance of stress cracks in the tread grooves is one indicator of overload and/or underinflation. If you find evidence of tread-groove cracking, you should remove and replace the tire immediately. This damage is permanent and non-repairable.
Tires with non-repairable damage must not be used again (see Tire Repair). Damage caused by impacts, penetrations or continued underinflated/overloaded use is progressive and can result in sudden and complete tire failure and accident, injury or death.
Your customers should always seek expert inspection of the dismounted tire following curb, chuckhole or other impacts, evidence of penetration beyond the tire surface, bulges or low pressure. They should not continue riding on such tires.
Advise your customers to inspect their tires frequently for damage and to always heed warning signs such as vibration, handling instability, rubbing or tire noise that occurs during operation of the motorcycle.
Kneeslider, please check items 3 and 8 of your link.
Karl
