Tire pressure on the LT with Metzlers? - BMW Luxury Touring Community
 
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post #1 of 24 Old Jul 24th, 2006, 3:18 pm Thread Starter
 
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Tire pressure on the LT with Metzlers?

What is the correct tire pressure on the Metzlers for the LT. Its a 99 LT, I am 290lbs. Thanks
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post #2 of 24 Old Jul 24th, 2006, 3:27 pm
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42F/48R is commonly accepted as the best pressure for wear.
Some bump up to 42/50 for load.

Others swear by what they run.

James Ranks
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post #3 of 24 Old Jul 24th, 2006, 3:32 pm
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Quote:
Originally Posted by amsoilguy
What is the correct tire pressure on the Metzlers for the LT. Its a 99 LT, I am 290lbs. Thanks
I'm going to run 48 rear and 38 front. Others have recommended higher pressures. I just changed my rear with 14,000 miles on it, which is pretty good mileage, but it was worn mostly in the center 2 inches. I think 50 PSI is too high riding one up. Some on this site recommend 50 rear and 40 front. The manual recommends 46-48 rear and 36-38 front.

Dick Wood
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post #4 of 24 Old Jul 24th, 2006, 4:34 pm
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I've got over 106k miles on my 99LT all on Metzelers except the first set of Dunlops. I've found that 45 front and 48 rear works best for me. Most of my miles are two up and sometimes pulling a bushtec trailer. If I'm doing a lot of one up riding (215lbs) I have dropped the rear to 46.

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post #5 of 24 Old Jul 24th, 2006, 6:45 pm Thread Starter
 
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Thanks, Just as I thought 42/48ish..
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post #6 of 24 Old Jul 24th, 2006, 9:16 pm
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I run 45 F & 46 R have about 10.000 on tires still look ok

Stevie Shreeve
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post #7 of 24 Old Jul 24th, 2006, 9:51 pm
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Based upon my discussions with members of the board at STC II, I was running 42/48 on my 'Stones and just recently replaced them with the Metz.

After dinner, I checked this thread and realized that I hadn't checked my pressures in a while. I found I had been running 34/40. I refilled the tires to 42/48 and took the bike for a little spin. I found the rear tire much firmer and I liked the way she felt. The front tire picked up every little bump on the road. Every seam in the road felt like a small boulder. I don't care for that much sensitivity. I'm going to let out 2-4lbs in the morning and ride her to work. I'll give a report tomorrow night.

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post #8 of 24 Old Jul 24th, 2006, 10:42 pm
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42 and 48

I average 20K miles on my front Metz. I keep it at 42 lbs.

I average 16K miles on my rear Metz. I keep it at 48 lbs.

Make real sure you have a good tire gauge. What I though was my best digital gauge was reading 4 psi high!
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post #9 of 24 Old Jul 25th, 2006, 12:06 am Thread Starter
 
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The mileage everyone is getting is great. I was expecting to be changing tires at 5k after reading some of the threads. Just got my LT 3 weeks ago and checked tire pressure today ( I know stupid of me, 3 weeks) front was 28psi and rear was 34psi. Rolls a lot better with air in the 800lb beast espacially at low speed.
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post #10 of 24 Old Jul 25th, 2006, 11:36 am
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Quote:
Originally Posted by wardenross
Make real sure you have a good tire gauge. What I though was my best digital gauge was reading 4 psi high!
How did you know it was 4lbs off? Could the gauge you used to determine the 4psi high be off? I always question how accurate my gauge is. Is there a "best gauge" out there? I would like one.

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post #11 of 24 Old Jul 25th, 2006, 2:50 pm
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Originally Posted by Dochatley
How did you know it was 4lbs off? Could the gauge you used to determine the 4psi high be off? I always question how accurate my gauge is. Is there a "best gauge" out there? I would like one.
Jerry - the one on this page, 'bout half way down in the center and above the Cramp Buster thangie, is prolly one of the most accurate gauges available. RoadGear sold out of these at the Breck CCR and then continued to get orders by internet after the event wuz over. Purdy easy to use on the LT, too. HTH.
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post #12 of 24 Old Jul 25th, 2006, 3:17 pm
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Quote:
Originally Posted by amsoilguy
What is the correct tire pressure on the Metzlers for the LT. Its a 99 LT, I am 290lbs. Thanks
According to my handbook(UK model) the correct pressures are: for one up, Front 36.3 Rear 42.1, two up the same and two up plus luggage Front 36.3 Rear 46.4. I run Metz on my 04 it has covered 4800 miles to my knowledge ( bought used at 4500 miles)on these pressures. I weigh 226 lbs. Why is it that you guys in the USA are using pressures that are way above those reccomended?

Dave
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post #13 of 24 Old Jul 25th, 2006, 3:26 pm
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For me, personally, I won't speak for others....

The front tire cups at the manual's pressure too quickly.
You get better mileage.
Most "reccomendations" are for "avg" riders.
Most Americans are above "avg". (I know I am)

I do NOT exceed manufacturer MAX pressure limitations (50psi is cold MAX, stammped right on the rear sidewall).

If running them at 42/48 was a safety issue, Metz wouldn't have HIGHER cold MAX pressures stamped on the sidewall.

The only issues are load (more pressure, more load)
grip (Less pressure [to a point] more grip)
wear (More pressure, better wear [to a point])

I go for two out of three. I can still scrape pegs in the dry at those pressures, with confidence, I might add.

James Ranks
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2005 BMW R1200GS 13000 miles (Sold)
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post #14 of 24 Old Jul 25th, 2006, 3:57 pm
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Quote:
Originally Posted by amsoilguy
What is the correct tire pressure on the Metzlers for the LT. Its a 99 LT, I am 290lbs. Thanks

Max psi on the sidewall 42 f 50 r

I spoke with metzeler on this and it is fine to actually run a few pounds over, I run 44 f 52-54 r and get great mileage out of them, do not run the BMW recomended tire pressure with the ME880 they will not last they overheat on this heavy of a bike

Tom

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post #15 of 24 Old Jul 25th, 2006, 4:03 pm
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Quote:
Originally Posted by Dangerous2
According to my handbook(UK model) the correct pressures are: for one up, Front 36.3 Rear 42.1, two up the same and two up plus luggage Front 36.3 Rear 46.4. I run Metz on my 04 it has covered 4800 miles to my knowledge ( bought used at 4500 miles)on these pressures. I weigh 226 lbs. Why is it that you guys in the USA are using pressures that are way above those reccomended?

Dave

we aren't Metzeler recomends 42f 50r right on the tire, the Bikes manufacture manual will give you a pressure for best comfort without regard to what manufactures tire you are using, I spoke with the reps from Metzeler at the dealer show in cinci about how I run my tires, they said no problem go for it on this heavy a bike, I run over max psi front and rear I'm 190 lbs, i get no howling from my mets or feathering of the front tire

working with tires for years it is always best to run the TIRE manufactures max PSI for best lasting tires, today's tire compunds are designed to heat up quicklly for better grip running them lower than max psi will let them overheat prematurely

according to the pros

Tom

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post #16 of 24 Old Jul 25th, 2006, 6:11 pm
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Quote:
Originally Posted by Dangerous2
According to my handbook(UK model) the correct pressures are: for one up, Front 36.3 Rear 42.1, two up the same and two up plus luggage Front 36.3 Rear 46.4. I run Metz on my 04 it has covered 4800 miles to my knowledge ( bought used at 4500 miles)on these pressures. I weigh 226 lbs. Why is it that you guys in the USA are using pressures that are way above those reccomended?

Dave
While I would not presume to offer a definitive answer to the ever present issue of "correct" tire pressure (that is best left to the rarified air occupied by messenger13 and dshealey ) I would however like to humbly submit the following items from the Metzler web site:

RIDER COMFORT
Softer ride due to high-quality carcass construction materials. Rayon is the primary fabric used in the ME880 and the most expensive ply material used in todays tires. Rayon gives a softer ride but requires more air pressure (max sidewall pressure for double-up riding) - or 1 up riding in my case at 315#

I would also direct your attention to the Metzler brouchure under Technical & Warranty which specifically addresses tire pressure recommendations in the U.S. market - http://www.us.metzelermoto.com/media/metzeler_2006.pdf

Additionally, after reading numerous tire threads here I can not resist including the following from the Metzler web site:

MILEAGE
Advanced Silica Compound reduces rolling resistance, which increases mileage. Advanced Silica compounding allows softer compounds to be used, while retaining High Mileage. Most consumers get 2000 (or more) miles than O.E. tires.

WET GRIP
Advanced Silica Compound combined with tread pattern, significantly increases wet grip. The primary use of silica is for wet performance, which Metzeler pioneered in 1984

I believe this should be sufficent to promote further disscussion and kindly thank you for your time and attention.

P.S. The LT is definitive proof that God does in fact ride.
post #17 of 24 Old Jul 25th, 2006, 7:08 pm
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Quote:
Originally Posted by wardenross
I average 20K miles on my front Metz. I keep it at 42 lbs.

I average 16K miles on my rear Metz. I keep it at 48 lbs.
I'll second the warden's numbers. I keep 42-43 in the front and 48-50 in the rear, and average about the same mileages.

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post #18 of 24 Old Jul 25th, 2006, 7:36 pm
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I bought oneof those chrome tire gauges that a service technician swears by. they aren't expensive and can be had at any automotive store.
There has been some pretty incredible mileage reports for the Metzeler's. I personally will run metzelers and metzelers only on my LT and I just replaced both tires with only 8047 miles on them. I run 42 up front and 46 on the rear..
damn, there's nothing like new skins on and riding twisting mountain roads(interstate today)
I'm sorry to report that while I came across Washington, Idaho and Montana, I didn't do very well on holding the speed limit ..but I promise to try and do better..

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post #19 of 24 Old Jul 25th, 2006, 8:03 pm
 
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I run 42 front and 49 rear. Most of the mileage was two-up ( a total of about 395# - I wont break it down any farther) and I got 11,500 on the set. The front could have lasted another grand or so, but I didn't want to take it in twice. Thanks for the tips on the guage....I am going to order a higher quality one. Maybe I'll find I was using different pressures than I thought.
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post #20 of 24 Old Jul 27th, 2006, 1:21 pm
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Quote:
Originally Posted by Dick
Jerry - the one on this page, 'bout half way down in the center and above the Cramp Buster thangie, is prolly one of the most accurate gauges available. RoadGear sold out of these at the Breck CCR and then continued to get orders by internet after the event wuz over. Purdy easy to use on the LT, too. HTH.
Thanks Dick. When I looked at those gauges I had to get a closer look. The combo gauges above the Cramp Buster, I bought the digital one that is slim
like the old service station gauges and has the tread depth measure at the opposite end. Got it at Target for about $5. Looks exactly like that one but is silver in color (doesn't have the roadgear name). Tested it against my BMW digital and my Accutire gauge. All pretty much dead on. I love the skinny gauge. Very easy to use.

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post #21 of 24 Old Jul 27th, 2006, 3:26 pm
 
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The absolute BEST pressures to run are: 40 front plus 15% more on the rear. That 15% bias is the key So I'm told - don't know why. I did not stay at a Holiday Inn last night.
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post #22 of 24 Old Jul 27th, 2006, 7:38 pm
 
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Quote:
Originally Posted by Dochatley
Thanks Dick. When I looked at those gauges I had to get a closer look. The combo gauges above the Cramp Buster, I bought the digital one that is slim
like the old service station gauges and has the tread depth measure at the opposite end. Got it at Target for about $5. Looks exactly like that one but is silver in color (doesn't have the roadgear name). Tested it against my BMW digital and my Accutire gauge. All pretty much dead on. I love the skinny gauge. Very easy to use.
If you ever get to a motorcycle race, visit a tire tent. They have VERY accurate gauges there. At least you can check it against what you have.
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post #23 of 24 Old Jul 27th, 2006, 7:39 pm
 
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Originally Posted by Uzirider
The absolute BEST pressures to run are: 40 front plus 15% more on the rear. That 15% bias is the key So I'm told - don't know why. I did not stay at a Holiday Inn last night.
So, you are saying 40 and 46? Who told you this?
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post #24 of 24 Old Jul 27th, 2006, 10:00 pm
 
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Originally Posted by Mopos
So, you are saying 40 and 46? Who told you this?
Yes - 40F 46R
Who? My dealer Just another opinion I guess.
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