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General Discussion
Started by oregon-bowhunter at 07-25-2008 6:44 PM. Topic has 11 replies.
  
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 07-25-2008, 6:44 PM
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oregon-bowhunter
Joined on 07-15-2008
Posts 8
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Sorting out things for this new cx500 owner. Just got new speedo installed and test drove the speedo. WOW, I was going faster than I thought.
Increased the tire pressure to 36-38 lbs. Seems to navigate the three miles of grooved asphalt I go thru on my way to work better. Rides harder when hitting the bumps though. What do you all run??
Ken
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07-25-2008, 6:57 PM
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fll1441
 
Joined on 11-06-2006
Fort Lauderdale, FL
Posts 670
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I keep 28-30 up front and 30-32 in the back.
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07-25-2008, 7:09 PM
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nippongreen
Joined on 03-16-2006
Ottawa, Canada
Posts 231
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28 front 30-32 rear :)
79 CX 500D / 82 GL 500i / 79 CX 500D parts bike
(ride safe).......SKYPE....(nippongreen)..
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07-26-2008, 7:02 AM
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tntchitwood
Joined on 03-02-2008
Pine Knot, KY
Posts 509
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This raises an interesting question for me...........If the bike/ repair manual, and the tire manufacturer all list a different tire pressure, which one should you follow? I have always went with the tire manufacturer.
Tom
'82 Silverwing Chopper
'02 750 Shadow
http://choppercharles.com/cs/forums/29599/ShowPost.aspx
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07-26-2008, 7:06 AM
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fll1441
Joined on 11-06-2006
Fort Lauderdale, FL
Posts 670
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Tom, isn't the tire manufacturer's recommendation usually just maximum pressure?
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07-26-2008, 7:09 AM
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tntchitwood
Joined on 03-02-2008
Pine Knot, KY
Posts 509
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Don't know. Who knew I was so ignorant about something as common as tire pressure (grin)? But, there it is....... I don't know. I hope somebody clears this up as me and my buddy had a disagreement about this one time. If I was wrong I would like to be able to tell him this.
Tom
'82 Silverwing Chopper
'02 750 Shadow
http://choppercharles.com/cs/forums/29599/ShowPost.aspx
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07-26-2008, 7:57 AM
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bearmani
Joined on 07-02-2008
a few mile east of the crossroads of mid-america
Posts 71
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mebbe i may be able to provide a lil insight here, as i usedta work/fix truck tires when i was a mite younger n stronger.
on car/trailer/truck tires, there is an area of FINE print by the "recomended" tire pressure on EVERY tire, (didn't think tires had fine print on them, eh?...lol) it will tell you the load that particular tire can SAFELY accomadate at which pressure...per example, let's say hypothetically: 540 pounds@ 60 pounds psi (pounds per square inch).....this ratring here wouldst be more like one you would see on a boat trailer tire.
as it seems the tires on these bikes are tubeless, and i do NOT know how these tires fit on the rim......like a car tire, in which the bead "pops" into its seat on the rim, or like a truck tire which is more er less "blown"(by massive volume of air at great pressure"150 er so pounds) to "bead" er seal the tire and is held there by the 100 er so pounds of air pressure to keep it in place. my "SWAG" (scientific wild-assed guess) is that these bike tires are like the aforementioned car tires and "pop" onto the rim, in which case, you could run the sucker flat and STILL not lose the seal. and if this be tha case with these tires, and you wish to run lower than than recomended tire pressure, and ya lose the bead on the tire and the sucker collaspes on a 3g turn?........"YA DIDN'T HEARS IT FROM ME"........lol
1981 gl500
Little Wing
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07-26-2008, 8:05 AM
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kenglong
Joined on 06-04-2006
Albuquerque, NM
Posts 133
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I used to run the Honda recommendations but when I switched to Metzelers, I thought I would try the recommendations on the Metzeler website which are considerably higher. Heck, I'm still pretty new at this stuff so I'm trying different things to find out for myself what works best.
I'm less concerned with a soft comfortable ride than I am with safe performance and long tire life.
Ken in Albuquerque
'83 GL650 Silverwing
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07-26-2008, 1:49 PM
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the cheese
Joined on 11-23-2007
Baldwin,GA
Posts 189
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The best thing to do is write the tire manufacturer and ask them.
" Hi tire guy,
I just bought your brand x tire. I have a 1981 CX500 Custom. Would you please tell me the recommened tire pressures for this bike/tire combo?
Thanks, ME"
The pressures Honda recomends are on the low side. Tires have advanced many fold since these bikes were new. What was good then may not be good now. I am running 35F and 37R. Bridgestone Battlax BT-45. I tried mine at Honda levels, the bike was unstable, tires heated up to much. Thats when I contacted Bridstone.
The way you can get close to the right levels is. The tires should raise in pressure when they heat up. Check them when cold. Ride around a little, then check them again. They should have came up about 10%. 30 cold, 33 hot. If you run a tire at lower press. it will live a short and unhappy life. If you run them higher they wear out in thew middle quicker than they should.
HTH Michael
1981 CX500 Custom
Just say no to skin graphs, wear your gear!
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07-26-2008, 7:42 PM
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Len in PA
Joined on 03-31-2006
Bristol, PA
Posts 182
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The Cheese is right on. Newer tires, both for cars and motorcycles, are designed to run with higher air pressure. One of the reason I have used Metzelers for years is that they respond quickly with recommendations. Back when I used Dunlops, never once got an answer,
'82 GL500i...nearing 100,000 miles
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07-28-2008, 8:52 PM
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tireloe
Joined on 03-20-2008
San Francisco
Posts 13
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What psi was reccomended for the Metzelers? I have me88's on my Custom.
"Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. Thats relativity."
Albert Einstein
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07-29-2008, 8:31 AM
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kenglong
Joined on 06-04-2006
Albuquerque, NM
Posts 133
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Honda CX500 & G... » CX500 GL500 Tra... » General Discuss... » Tire Pressure???
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