Rear feels like it's sliding/slipping

[alaskanflyboy]

45f & 48r ???!!! was that cold or hot? if those are cold temps, then they are waaaay over-inflated for street riding. i think max inflation specs are 36f & 42r measured cold...

for normal, everyday riding it will go up a few psi from road temps... so, even at 36f & 42r measured cold, u are still technically, on the high (over-inflated) side, because once you've been riding around they will get to like 39f, 45r hot...

unless you weigh over 200+ lbs or are carrying a passenger every time, there should be no reason you should be inflating the tires that high, imo... it will lead to premature wear and not grip as well...

From my understanding, the numbers account for the pressures when they've heated up. The max of 36/42 takes into account the real pressure they'll have on the road. I could be wrong, but that's what articles I've read have lead me to believe.

I've also been lead to believe that the low setting is supposed to be a comfort compromise, you get less rigidity in the tire which softens bumps, but leads to faster wear and tear.

I could be wrong, and I'd have to search through the articles I've read to find the info again.

 

[Marthy]

3/4" to 1" on your chain... 45-55mm is what you need. I know! freaking almost 2"!!!

 

[nismos14]

45f & 48r ???!!! was that cold or hot? if those are cold temps, then they are waaaay over-inflated for street riding. i think max inflation specs are 36f & 42r measured cold...

for normal, everyday riding it will go up a few psi from road temps... so, even at 36f & 42r measured cold, u are still technically, on the high (over-inflated) side, because once you've been riding around they will get to like 39f, 45r hot...

unless you weigh over 200+ lbs or are carrying a passenger every time, there should be no reason you should be inflating the tires that high, imo... it will lead to premature wear and not grip as well...

do this...

wait til your tires are cold- ie measure the inflation -before- you ride in the am after the bike has sat idle overnight. front should be around 33 psi, rear should be around 36 psi. this is a "starting point." adjust the psi depending on your weight and how much cargo you are carrying and the type of riding you are doing... for straight on freeway commuting u can inflate a little bit extra- like 34/35f & 37/38r psi cold- to get better mileage. but, don't go nuts.

your bike will love u oh so much better...

Great info thanks.

Nismos - you've got me thinking tire pressure.

I am loaded up at about 195# when geared up with backpack etc.... I keep my front at 35, rear at 40. I have no idea if that is appropriate but just going by the manual. I have noticed it is a different handling bike when under-inflated (as you say, slippery). Not sure though how over-inflated feels.

But at 35/40 I wonder if I might need a bit more pressure...tires are stock with 4,000 easy city miles but I hate the thought of the inadvertent 'drift'!

I'm about 195 with gear, not including anything I add, with my wife on we're at like 305. I'm gonna drop my pressures down when I get a better pump today.

we had a rider on his cbr1000 who kept complaining about the exact same thing one track day....

he was way under pressured (something like 15 instead of 28 or something)... turns out he had a faulty tire pressure gage... because he had checked it before going out for a few sessions.

over pressured will do the same, you tires will never warm up, or will take forever anyways...

I think my gauge is accurate for the most part as I've compared it to other tires on my cars and they do match. I will be getting another one today though.

You most certainly can have traction issues from over inflation -- 'specially if they're over inflated as much as you say... From Honda-Tech:

"An over-inflated tire can bounce on surface roughnesses. This can cause dangerous interruptions in traction, particularly if it happens during cornering."

"...decreased traction on marginal surfaces, unpredictable responces during suspension upsets, excessive rebound as the tire bounces over bumps as opposed to absorbing the shock, and yes - given enough time, predictable wear (tire compound sensitive)..."

Some feel over-inflating saves on gas due to reduced traction patch, and lower friction... That's fine in a four-wheeled vehicle... different story on our little ponies...

As Detrich said: 33 and 36, front and back, respectively, unless you're carrying a passenger or a howitzer...

More great info, thanks!

3/4" to 1" on your chain... 45-55mm is what you need. I know! freaking almost 2"!!!

Really? but 2" all they way from bottom to top right?

 

[dart1963]

Great info thanks.
Really? but 2" all they way from bottom to top right?

yes, you should push it all the way down, mark it, push it all the way up. That should be about 2", measured from the same ref. point. So if you were measuring up then down at 1", you're good, but it is recommended to measure full span.

 

[danieljardim]

My .02 cents. The right tire pressure is the one on the sticker.

My was under inflated for my weight, I had to fill it. (dont remember the numbers)

NEVER TAKE THE TIRE PRESSURE STICKER OFF. IT'S UGLY BUT IT'S IMPORTANT. NO "GUESSING/INTERNET SEARCHING" GAMES WITH IT. JUST LOOK AT THE STICKER.

 

[Deanohh]

OP, do yourself a favor and have a knowledgeable person show you how to check your chain. Spec for this bike is different than most. Forget any smiley face nonsense, it must be measured. When too tight it will restrict travel of your suspension, and also put undue pressure on drive train. Too loose and it will clank against the swing arm or even fall off the sprocket.

The measurement is total deflection of chain centerline up and down, bike on both wheels in neutral no rider. 1-3/4-----2-1/4 in.

Just remembered you're lowered so that changes geometry...go tight enough to keep the chain about 1/4 inch from hitting the swing arm when you push up on it.

 

[Mitch21]

NEVER TAKE THE TIRE PRESSURE STICKER OFF. IT'S UGLY BUT IT'S IMPORTANT. NO "GUESSING/INTERNET SEARCHING" GAMES WITH IT. JUST LOOK AT THE STICKER.

Lol too late haha oh well I wrote it somewhere

 

[short_guy]

NEVER TAKE THE TIRE PRESSURE STICKER OFF. IT'S UGLY BUT IT'S IMPORTANT. NO "GUESSING/INTERNET SEARCHING" GAMES WITH IT. JUST LOOK AT THE STICKER.

Or take the sticker off, but use some clear packing tape to affix it to the bottom of the passenger seat. Still there when you need it, but not as much of an eyesore...

 

[Saxon237]

There's no excuse for that. Even if you've never ridden a bike, if you've owned a car you should know better.

I do concur. We've given him nothing but crap ever since. *I* have never ridden a bike and I know that you have to check pressure...you can't just look at the tires!

 

[nismos14]

I put the pressures at 32 and 40, still feels kind of weird. I did notice it feels more slippery making rights then lefts though It did not feel like this when I bought it, but it did have very high tire pressures as I never changed them till this week.

 

[FastFreddy]

I find 35 PSI front tyre pressure makes the front slightly squishy under brakes, but not too squishy. Above this point its more hard and below that point its more squishy under brakes.

I usually go 37 PSI rear but will go 38 PSI soon as its getting colder and wetter lately and the tyres don't heat up much on the way to work.

What tyres do you have ? maybe its got a steep profile at some point in the cornering.

 

[nismos14]

They are just the OEM tires, I'm not sure what they are.

 

[SpawnXX]

Does anyone have any ideas as to why I might feel like the rear is sliding from under me? It only happens in corners, but I definitely feel like the rear tire is sliding out from under me a lot of times. It's not happening going straight, and these are not very hard corners that I'm taking just normal street turns.

Questions:

1. How many miles on tires?

2. Road conditions when making corners

3. Stock tire? If not list type. (nevermind, answered)

4. Could you be subconsciously applying the rear back when turning?


You will experience this sensation from time to time. Especially if your tire is cold or road conditions in play.

 

[Brock Kickass]

There's one turn in town that it feels like I lose rear traction every time I go around it. I don't know what it is. I have had the rear break loose on me before, so I know when it is and isn't happening, but for some reason, this particular turn has my number. At least half the times I go around it I bobble a bit. It happened on my 6R, and it happens on my FZ1. It has happened in cool weather, and in extreme heat. There's no sand or gravel there. I want to get a video of em going around it to see if I can solve it. The only thing about it that is different form other times is the recovery feels a lot smoother than when I lose the rear end in other turns.

 

[nismos14]

Questions:

1. How many miles on tires?

2. Road conditions when making corners

3. Stock tire? If not list type. (nevermind, answered)

4. Could you be subconsciously applying the rear back when turning?


You will experience this sensation from time to time. Especially if your tire is cold or road conditions in play.

Tires have ~2600 miles

Road conditions are probably a lil cool, but I felt the same on warm roads too, dry all the time though.

I don't brake through turns I slow down enough before entering the turn to get me through it smoothly.

There's one turn in town that it feels like I lose rear traction every time I go around it. I don't know what it is. I have had the rear break loose on me before, so I know when it is and isn't happening, but for some reason, this particular turn has my number. At least half the times I go around it I bobble a bit. It happened on my 6R, and it happens on my FZ1. It has happened in cool weather, and in extreme heat. There's no sand or gravel there. I want to get a video of em going around it to see if I can solve it. The only thing about it that is different form other times is the recovery feels a lot smoother than when I lose the rear end in other turns.

That's weird, maybe the road surface?

 

[Gixerhp]

Is the bike lowered at all, front or rear?

 

[Brock Kickass]

I always wondered if it's the road surface there. The other possibility is that there's a contour in the pavement that drops off or something and it just feels like the rear end is going...

 

[nismos14]

Is the bike lowered at all, front or rear?

Both, but it was riding fine up until I felt this a few days ago.

I always wondered if it's the road surface there. The other possibility is that there's a contour in the pavement that drops off or something and it just feels like the rear end is going...

That's very possible

 

[Nastybutler]

Does it happen in the same spot on the same corners? Have you tried going back and seeing if it repeats itself at the same spot?

 

[nismos14]

These are all different turns, nothing specific. It also feels like it's doing it less as acceleration in the turn increases.