Tyre pressures

My bike came absent of the TP monitoring that it was meant to have. Whilst it is waiting. To be sorted I put a couple of Air Checker TPM dust caps on as a stop gap from bikers shack. You order the pressure you want. Work a treat. Biker-shack.co.uk
 
manual

Whilst in Europe a BMW mechanic suggested they recommend
2.5 and 2.9 but two up 2.7 and 3.1.



The manual states 2.5 - 2.9Bar / 36 - 42Psi for all occasions loaded, 2 up or solo.

Terry
 
36/42 as the manual and the tyre manufacturers' recommend - seems to work well solo or two up.
 
I have been running 36 / 42, but sometimes the back wants to patter a bit (if yer sort of know what i mean) if I light it up coming out of a corner. If I back off the rebound a bit it doesn't cure that too harsh feeling I get from the rear, it just makes the whole bike wallow a bit too much. So I may just try experimenting with dropping tyre pressures a tad.
My experience with a lot of 'adventure' tyres is that they can run quite firm on the road (stiffer carcass I guess) - my TR91's were much better on 34 / 40.
I'll let yer know ... :D
 
Forgot to say - I have standard suspension on my LC, none of that fancy automatic, electronic stuff - god knows how that interacts with the tyres!
 
Mine came with the Tourance Next on it. I posted a question on the Metzeler Facebook page, and this was their response. Pressures listed at the end:

Metzeler The new Tourance Next is radically different than the regular Tourance that has been in our range since about 1998. The Tourance Next features Metzeler Interact steel belted technology that is shared with the Roadtec Z8 and Sportec M5 along with a multi compound design. This means the as the bikes have evolved in performance, speed, and horsepower the Tourance Next gives the rider a better handling motorcycle. When we look at Dual Sport (about 10% off 90% on) tires we have found over the years the Tourance typically gets a low of about 3,500 miles to a high of about 10,0000 miles but everyone’s results could be different. And there are exceptions at both ends and our Tourance mileage leader is a gentleman in the Phoenix area riding an oil head GS that complained about only getting 15,000 on a set?

The other issues related to tire wear is load carried & air pressures and using the correct tires. If the bike is overloaded and or the tires are under-inflated the wear can be poor. Metzeler's biggest concern is always the lack in maintaining the correct tire pressures at ALL times and we cannot stress this enough. Different riding styles (with Dual Sport bikes this means a big mix of road surfaces) and improper suspension settings influences front and rear tire wear. For instance heavy rear brake use will wear out a rear tire very fast as well as hard launches from stop lights. Improper suspension settings, poorly maintained components will cause tire wear problems too. And since many riders are going off road/dirt road riding we know if they run low tire pressures on a big heavy bike like a 1200GS the tire wear is much faster due to the extra stress on the tire. Even in this day and age it is not uncommon for some bikes suspension to not have accurate compression and rebound dampening after only 7000 miles on the odometer.

With the Tourance Next you will find the bike handles better, corners better, and gives more feedback in all conditions and especially in the wet, and the expected mileage is going to be very close to the old Tourance, but as mentioned above there are way too many variables to get a more exact estimate.

Finally please note one should always inflate tires to the correct tire pressure as indicated in the owner’s manual. However Metzeler has found the air pressure suggestions listed below or in our brochure will improve mileage and customer satisfaction. Check cold inflation pressure frequently. Correct tire pressure is crucial for safe handling. Over inflation may impair ride comfort and reduce the contact patch between the tire and the driving surface of the tires. Insufficient air pressure will result in poor handling and cause a tendency for the motorcycle to "wander". In addition, improper and insufficient tire pressure will cause accelerated tire wear, increased fuel consumption, less control and the possibilities for tire failure due to an overloaded/under inflated operating situation.

RECOMMENDED MOTORCYCLE TIRE PRESSURES BASED ON LOAD
Front tires Solo 2 up Riding 2 w/load



32-34 34-36 36-42

Rear tires Solo 2 up Riding 2 w/load



36-38 38-40 40-42

Since most BMW riders use these bikes as touring motorcycles we always suggest that running higher pressures (up to the max as stated on the sidewall) will increase the life of the tire with no adverse effects.
 
Much lower than bmw recommended pressures. Like Giles, I have found in the past that slightly reduced pressures helped so after reading that response I might reduce pressure.
 
I'm just back from a rather spiffing 2,500 mile trip around the Alps and though the TE bike performed faultlessly I was running 36/42 solo with not a huge amount of luggage and think I should have taken the chance to experiment lowering the pressures a little on the Anakee 3's. I'm going to have a play around with it on my local roads solo to test it out too.

Always adjusted slightly down from 'standard' on all other bikes but never really thought about doing it on my GS's. Dunno why not. Be interested to hear other's experiences.
 
The classic split for most modern motorcycles is 36 / 42, made all but uniform by the tyre manufacturers to avoid bods getting too confused.

As Giles found, running the tyres at lower pressures may well please some riders. Certainly a lot of sports orientated tyres (now popular with GS riders) can stand lower pressures. The reason? The side walls are getting harder and tougher, to support ever softer rolling surfaces.

Muck around with the pressures. Find something you like and go with it. What suits one fellow, will not suit another..... You can can aways go back to 36 / 42 in seconds.
 
Don't forget folks tyre pressure is only as accurate as the tool you use to measure it.

Many forecourt air gauges can be wildly inaccurate,either carry your own gauge or find a local garage that have their gauges calibrated regularly and will let you use it.

Steve
 


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