20-22 ish
690 SMC tire pressure?
What tire pressure is everyone running for different types of riding on the 690 SMC? Sorry if this has already been covered. Love this bike by the way!
1 - 20 of 29 Posts
People will probably flip.....but I've been running roughly 34 front and rear the last couple weeks. Going to step up to 36 here shortly to see how things feel. No - I've noticed no ill-effects in terms of traction, as I don't ride as if I were on the track (or off-road)....but I don't ride like a grandma either. Similar to my SV (I'm at 42 on that bike) - I've increased the pressures in the tires on the street to gain some longevity. At street speeds I have yet to notice any loss of stability.
manual/stickers states 29psi.
I have mine @ 27
I have mine @ 27
* FLIPS * 42 PSI ? E-gads... Suggest you concern yourself with TRACTION and SAFETY as opposed to an incremental life extension. At 42 PSI you might slide into next week if hard on the brakes ! Also remember that tires heat, air expands = pressure increases !
People will probably flip.....but I've been running roughly 34 front and rear the last couple weeks. Going to step up to 36 here shortly to see how things feel. No - I've noticed no ill-effects in terms of traction, as I don't ride as if I were on the track (or off-road)....but I don't ride like a grandma either. Similar to my SV (I'm at 42 on that bike) - I've increased the pressures in the tires on the street to gain some longevity. At street speeds I have yet to notice any loss of stability.
42 psi is insanity.
:headshake
20-22 ish
Way too low.
:rofl: @ 42psi
they only do that to seat the bead.:laughingr
they only do that to seat the bead.:laughingr
You should run somewhere between 18-28 depending on how hot it is, concerns about tire longevity and mpg, traction, style of riding, etc. I'm running 22-24 for aggresive street riding.
MotoGP is currently running around 12 psi by the way. When I raced w/ the big bikes we ran around 26 psi but tires have changed and the light SMs need lower pressures to work correctly.
Sometimes if I'm taking a long road trip on a bike just to save $ on tire wear and mpg I'll crank them way up to like 35 psi.
MotoGP is currently running around 12 psi by the way. When I raced w/ the big bikes we ran around 26 psi but tires have changed and the light SMs need lower pressures to work correctly.
Sometimes if I'm taking a long road trip on a bike just to save $ on tire wear and mpg I'll crank them way up to like 35 psi.
Believe what you wish. I've run the SV at 42psi this entire season - that includes a week at Deals Gap and several other sporty days. Absolutely no issues with traction and/or safety. It says "max 42psi" on the sidewall for a reason.42 psi is insanity.
:headshake
Again - believe what you wish, but I've had no issues. I've also spoken to several techs with 20+ years in bikes. They shrug at 42 and say "if you want to...go ahead."
the thing is when you set your tyres at 42 psi cold, pressure will continue to rise when the tyre heats up, meaning with a hot tyre you're no longer at 42 but probably somewhere around 45 psi or even more.
I once rode around with 37 psi in my front tyre on my old 450, forgot to check the pressure when I got my wheels back from the dealer after swapping tyres. the bike felt dodgy at the front end, it wouldn't turn in right and I had little grip eventhough the track was completely dry and it was nice and warm that day. dropping the pressure made everything right again.
probably the only reason why you feel nothing is wrong is because by this time you're used to riding like that. I think if you dropped the pressure in your front and rear tyre you'll have a hard time believing how you could ever ride with 35 psi or more. I went out for 1 lap and immediatly noticed something was off when I dove into the first turn when my pressure was set too high.
what I do on my bike (+- 275 pounds)
23-24 psi for trackuse
25-26 psi for roaduse
taking into consideration the weight of the bike, on a smc I might go to 27-28 psi for roaduse.
general rule I personally uphold: never go over 30 psi on a supermoto. I only ever go that high when I want my tyre to last a little longer
I once rode around with 37 psi in my front tyre on my old 450, forgot to check the pressure when I got my wheels back from the dealer after swapping tyres. the bike felt dodgy at the front end, it wouldn't turn in right and I had little grip eventhough the track was completely dry and it was nice and warm that day. dropping the pressure made everything right again.
probably the only reason why you feel nothing is wrong is because by this time you're used to riding like that. I think if you dropped the pressure in your front and rear tyre you'll have a hard time believing how you could ever ride with 35 psi or more. I went out for 1 lap and immediatly noticed something was off when I dove into the first turn when my pressure was set too high.
what I do on my bike (+- 275 pounds)
23-24 psi for trackuse
25-26 psi for roaduse
taking into consideration the weight of the bike, on a smc I might go to 27-28 psi for roaduse.
general rule I personally uphold: never go over 30 psi on a supermoto. I only ever go that high when I want my tyre to last a little longer
28/28 street
24/24 track
Stock tires
24/24 track
Stock tires
My dealer had 42psi in my SMC when I picked it up. During my ride home(150+miles), I was thinking I made a bad decision. The bike felt squirrely during high speed sweepers. I checked the tire pressure when I got home and was shocked to find 42psi, so I dropped down to 28psi. After that change the bike feels more stable throughout a corner, and initiating turns has become easier.
Keep in mind - I'm not running 42 in the SMC. The SMC has 34 in it right now - and that's likely as far as I'll go. I'm going to try 36 just to experiment. Only my SV runs at 42. I HAVE gone down to lower pressures on the SV and noticed little if any degradation when running higher pressures.. At something less than 8/10ths riding I've noticed no real change. Also - the tire lists 42 as a 'cold' pressure, so yeah - of course the tire heats up past that.
I mean - the SMC has got Diablo Super Corsa Pros on it. According to Pirelli - its a racing Tyre, homologated for public roads use, derived from top race winning pirelli product. These tires are designed for much heavier bikes with lots more power. More than adequate traction can be had at higher pressures and allow you to balance longevity with outright performance.
I also didn't just go straight from 28 to 34 in one big jump. Two pound increments over a roughly two-week period. The SV has been at 42 for a long time.
Like I said - I figured people would flip out. But this isn't something I did without thinking about it or discussing it with people I trust. If you disagree, that's fine. I expect it. I just decided to find out for myself what adding pressure did for me day-to-day. On track or on really hard sport rides - these pressures would be a bit much. But that doesn't mean I need to run those pressures on my way to work, out with buddies for an hour or to the movie rental store.
Rather than take everyone's word for it - I figured out what I thought was right. If what I'm doing makes me insane.....I'm okay with that. But if you're sensible about it and pay attention to what you're doing you can learn a lot.
I mean - the SMC has got Diablo Super Corsa Pros on it. According to Pirelli - its a racing Tyre, homologated for public roads use, derived from top race winning pirelli product. These tires are designed for much heavier bikes with lots more power. More than adequate traction can be had at higher pressures and allow you to balance longevity with outright performance.
I also didn't just go straight from 28 to 34 in one big jump. Two pound increments over a roughly two-week period. The SV has been at 42 for a long time.
Like I said - I figured people would flip out. But this isn't something I did without thinking about it or discussing it with people I trust. If you disagree, that's fine. I expect it. I just decided to find out for myself what adding pressure did for me day-to-day. On track or on really hard sport rides - these pressures would be a bit much. But that doesn't mean I need to run those pressures on my way to work, out with buddies for an hour or to the movie rental store.
Rather than take everyone's word for it - I figured out what I thought was right. If what I'm doing makes me insane.....I'm okay with that. But if you're sensible about it and pay attention to what you're doing you can learn a lot.
The 42 psi is the pressure needed for that tire to support the max amount of weight that it is rated for (probably around 600# per tire!) for an extended period of time at high speeds and high temps. It is not the recommended pressure for aggresive riding.
Techs w/ 20 years experience means nothing. Why don't you ask a racer or a race tire distributor? They will tell you low 20s.
42 psi is FAR from ideal for traction or feel. Will it work when the bike is ridden at moderate speeds where traction, feel, bump absorption, predictability, and getting heat into the carcass is not a concern. Absolutely. But that bike will go much faster around turns with about half that air pressure. it will also hook up better in a straight line.
But ultimately it's your bike so do what you want of course, but it's still way wrong.
Techs w/ 20 years experience means nothing. Why don't you ask a racer or a race tire distributor? They will tell you low 20s.
42 psi is FAR from ideal for traction or feel. Will it work when the bike is ridden at moderate speeds where traction, feel, bump absorption, predictability, and getting heat into the carcass is not a concern. Absolutely. But that bike will go much faster around turns with about half that air pressure. it will also hook up better in a straight line.
But ultimately it's your bike so do what you want of course, but it's still way wrong.
Again - I am NOT running 42 in the SMC. People seem stuck on that. If you're referring to low 20's in the SV....I've never even heard of that, on track or otherwise.
Why would I care what a racer or race tire distributor says? That's not my application - and yes, low 20's on-track makes sense. Not on the street.
Clearly - for total performance, lower pressures are better to a point. If I were racing or track riding, it'd be a different story. On the street - I'm simply not concerned with ultimate cornerspeed.
Why would I care what a racer or race tire distributor says? That's not my application - and yes, low 20's on-track makes sense. Not on the street.
Clearly - for total performance, lower pressures are better to a point. If I were racing or track riding, it'd be a different story. On the street - I'm simply not concerned with ultimate cornerspeed.
Why not just run touring tires?Again - I am NOT running 42 in the SMC. People seem stuck on that. If you're referring to low 20's in the SV....I've never even heard of that, on track or otherwise.
Why would I care what a racer or race tire distributor says? That's not my application - and yes, low 20's on-track makes sense. Not on the street.
Clearly - for total performance, lower pressures are better to a point. If I were racing or track riding, it'd be a different story. On the street - I'm simply not concerned with ultimate cornerspeed.
Don't you think Suzuki's recommended tires pressures are fairly conservative to start with? 32F and 34-36 rear should more than do the trick. 42 is just plain silly.
I typically run 3-4 PSI higher in the rear on my RC51 for some added tire life, but not in the front. It makes things more fun that way. Plus I still went through rears WAY to often.
Thanks for all the great feedback. Is it safe to say that everyone runs the front about 2 psi higher than the rear? I'm thinking a good pressure for aggressive riding mixed with average street riding is about 25 psi. I weigh about 175 with gear.
1 - 20 of 29 Posts
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