Z3n
Squid.
You can drop pressures but you're not gonna get anything more than worse tire life out of them on the street. I run 38/40, typically.
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It's a Honda
- Thread starter kurth83
- Start date
buellistic
Well-known member
Funny.. So nobody in this thread has ever had a track day? Or raced for shure!
The first thing a coach at a track day meeting will say is....
(If you air up your tires to the reccamended max by manufacturers rec.
You Will crash Today)
Like I said before look up Dave Moss ..Tuning. He is here and has great videos
Of how to get the best traction out of your tires. Your Life Depends On It!...
I have been riding since the 1970s and have had over 150 moter cycles.
I know a bit.......
I don't have the manual for that bike.
It sounds like said manual suggests the same pressure for solo vs laden.
That doesn't make sense, and therefore it's more likely to be lawyer related than engineering related.
russ69
Backside Slider
Pilot jet?CB500 is Fuel Injected. That's why I suggested a bit of Sea Foam. Does wonders on varnished up injectors.
Oops. The original CB500 didn't, lol. FYI Honda has used CB500 many times, for different engines I think. So yes, fresh gas and some cleaner.
shouldnthave
Taze away, Yana...
I love that this thread turned into a pressure piss off. NEVER follow the bike manufactures recommendation, ALWAYS follow the tire manufactures recommendation for the ride you are about to have.
I'm also sickened no one went on an oil tangent. Slackers.
I'm also sickened no one went on an oil tangent. Slackers.
Rumbo Sur
learning everyday
You run those pressures on a CB500F? NOTE: for me, I'd rather get a few less miles out of a tire than CRASH due to over inflated tires.
Every bike requires tire pressures suited to that machine ..and that rider.
Only done a few track days, also attended two tire test days at Streets of Willow. One for Metzeler, another for Dunlop.
Not a road racer, competed AMA Enduro 8 years. B rider.
For the Tire Tests temps high 70's - 80's (nice!) The tire techs were all over our tires after session, probing, poking, getting temps, looking at wear, copious notes and getting feedback from the Pros and experts in the group.
(not me!)
The techs from BOTH companies wanted us to run 30 to 32 PSI. Some of the riders were AMA pros as well as several fast guy journalists like Don Canet.
The bikes there were nice mix of sporty bikes; R6, GSXR, Aprilia, Ducati, Triumph, ZX10 and a few others. I suck on a race track but learned A LOT about tires, tire construction, wear and latest technology during the classroom session held before track time. Fun.
On what tires? The OP is probably either on sport touring rubber, or 90/10 adventure rubber. Did they want you run such low pressure for those? Or was this only a sport tire test?
OMFG you think that track pressures and street pressures are the same? #fail
Help me out with your thinking.
What would lawyers have in mind? Causing crashes, or reducing them?
Give it time ... Lots of peeps catch up on Monday morning.
ilikefood
Active member
30 or 32 lbs of pressure make sense for the track, where your tires get hot. Such low pressures make no sense on the street. It makes absolutely no sense to compare track and street tire pressures.
Z3n
Squid.
Yes, I'd run those pressures on a CB500F if I was running the bike on the street.
That you're not making a distinction between street and track, onroad and offroad, is sorta a major problem. I run 4-8PSI offroad (tubliss), 8-12 with tubes, 22-32 on my supermotos depending on street/kart track/big track, 20-34 depending on tires for track useage (slicks and DOTs), and 38/40 for street across nearly all motorcycles.
You're also typically only running 20 minute sessions at the track, so the conditions change quite a bit because of that as well.
What tire manufacturers provide recommendations? I generally see a max pressure and that's it.
If you out-ride the available traction and crash, that's on you.
If the tire fails catastrophically causing a crash, that's on the tire/recommendations.
Higher pressures (within reason) will result in less heat in the tire, making it less likely that the tire will fail. This also reduces traction.
As you said, they recommend the same pressures for every situation. That makes no sense if you have a target tire temperature.
Rumbo Sur
learning everyday
Sport/Sport touring tire tests for both Metzeler and Dunlop)
Rumbo Sur
learning everyday
For the street portion of the tire testing the OEM's raised pressures a few lbs IIRC. Been quite a while, did not note numbers. Probably from about 30 up to about 36 Psi?
Part of the Metzeler test for their latest Sport-Tec tire (a sporty sport touring tire) was to show off how quickly it warmed up on a cold day.
corndog67
Pissant Squid
You're overthinking things. 32psi. Does it feel right? Up or down a couple until it does. Gas? It started right up, does it idle? In my experience, if the gas is nasty, it clogs up the pilots, but you're injected, so....RIDE IT, it will let you know if something isn't right. Are the tired dry rotted? If not, Fuck the date code, just ride it
Z3n
Squid.
This is bad advice. Tires definitely harden and lose grip over time, and the same folks that'll tell you to run low pressures for better traction are ignoring that a baked out tire is pretty much worthless for traction no matter what. Also, if the rider has bad technique, lower pressures can feel better cause they slow down steering and add stability, but I wouldn't recommend running 28PSI because the bike feels very planted when you do - you'll wear out the tires super quickly, they're not going to be in the right operating temp at any time, and if you've got sportier tire, larger contact patch means fewer sipes to displace water and you can end up hydroplaning more easily as the tire has to displace more water.
Check the date codes, if they're within 5 years and you don't have sidewall cracking you're fine, run anything from 32-40PSI, and enjoy getting your bike back on the road.
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redtail
only ones and zeroes
Ever since I was young, I've learned to not step in dog shit, just go around and leave it alone... Oh well, here goes.
I really do not like blanket statements and absolutes when it comes to things like tires/pressures/oil. Seems like a religion to some people.
My sumo, where ever she may be,
had a suggested TP of 29psi F/R. Depending on where I'd be riding, the tire pressure may vary to accommodate the terrain, but no more than a few pounds. Experience with tires/pressure can tailor the feel of the bike better to suit the style/preference/terrain and most likely will vary from rider to rider.
So, IMHO, experiment, keep notes, get various opinions and ride on!
I really do not like blanket statements and absolutes when it comes to things like tires/pressures/oil. Seems like a religion to some people.
My sumo, where ever she may be,
had a suggested TP of 29psi F/R. Depending on where I'd be riding, the tire pressure may vary to accommodate the terrain, but no more than a few pounds. Experience with tires/pressure can tailor the feel of the bike better to suit the style/preference/terrain and most likely will vary from rider to rider.So, IMHO, experiment, keep notes, get various opinions and ride on!
kurth83
New member
This thread is a perfect (and entertaining) welcome back to BARF, nice to know nothing has changed.