| Author | Message | ||
     Russmannnn |
As it is now I have 40 in the back and 42 in the front. Im 210lbs and was thinking about lowering both to get more contact but dont know were to go. Dose anyone have any ideas? | ||
| Ezblast |
Have been running 34/36 f/r check and adjusted after 1/2hr of riding. EZ | ||
| Froggy |
45/45 cold on all my bikes. Better tire life, better fuel economy, same great grip. I will lower it down a little bit if I know I am going to be riding aggressively, and even lower for the track. But 99% of the time it is 45/45. Easy 7000 miles on Corsa III's and easy 45mpg doesn't lie. | ||
| Zane_t |
Optimum tire pressure depends on your riding habits. 34 psi in front and 36 psi rear for race track and aggressive street riding. If your not a real aggressive rider you can experiment with running up to 40 psi in front to keep the tread from cupping, which I've experienced with other bikes. I've found that using 36 psi in the rear is ideal everywhere. | ||
| Brumbear |
40/42 cause pirelli told me to. I was having halo issues and emailed pirelli and the told me to up my pressure to 40/42 and viola.  | ||
| Jaimec |
The factory recommended 34/36 has been working fine so far. I figure the elves know the bike better than anyone so I'm willing to take their advice. | ||
| Jaimec |
By the way, this post bears repeating: http://www.badweatherbikers.com/buell/messages/327 77/214330.html#POST699981 | ||
| Thefleshrocket |
Low 40s seems a bit high even for mileage-based riding, but if froggy says it works, it may well be the way to go for non-performance riding. I run 33/37 on the street. I haven't tracked my 1125 but when I did with my gsxr600, I ran 30/31. | ||
| Boogiman1981 |
40ish ft/rr less than that the tires squirm really bad feel very unstable | ||
| Tpoppa |
32f 34r cold. Running in the 40s may improve gas mileage and tire life, but at a cost. The contact patches are smaller and less compliant, which means less cornering grip, and less braking grip. That could make riding in the wet especially dicey. Personally, I wouldn't do it. | ||
| Boogiman1981 |
poppa perhaps in your case or maybe i just have bad set of shoes i dunno but that thing handles like poo under 38psi | ||
| 1_mike |
45 ft., 40 rr. for daily driving. Drop to 42/38 for playen. Why...because over the years, this has shown to be the best for tire wear and traction for me. It also very much depends on the tire. The lighter the tire gets, the more pressure it needs to keep its shape. I'd guess it somewhat depends on the overall weight. I'm about 245lbs. Mike | ||
| Mountainstorm |
I started off running 36F 38R using Michelin Pilot Power 2CT tires, and I have not had issues with grip, but 2-3 pounds less in the rear makes the bike feel more planted. Anything less than 35 in the front and I notice peculiar wear. I definitely don't like higher pressures. Lower pressures make handling feel a bit too heavy and cause poor wear characteristics. The Michelins seem less sensitive to pressure changes than the Pirellis. I could tell instantly if the front was a pound low with the Corsas. I've run as low as 32 in the front without adverse handling on the Michelins. | ||
| Rodrob |
28/28 Dunlop GP-A 211 or 209 | ||
| Kicka666 |
36/36 filled with Nitrogen Pirelli SC's for road use, 30/30 hot on the track. | ||
| Norwegian_1125cr |
If you want to know what tire-pressure you should run with, go to the people making your tires: http://www.pirellityre.com/web/fitment/selectSearc hTyresForm.do?mySelectActived=confirm&myEntryPoint =%2Ffitment%2FhomeMotoFull&brandVehicle=5263&model Vehicle=119633&versionVehicle=227873&consent=Y#fit mentanchor | ||
| Westmoorenerd |
Norwegian...so about 36PSI front and 38PSI rear is what I'm getting from the website. | ||
| Mtch |
i have emailed michelin about the pressures needed for power pures. no answer yet. im running the same pressures as i did with the pirelli's, but am not sure if that is right for these tyres | ||
| Asphaltdancer |
Factory recommends 34/36 on the Pirelli Diablo Corsa llls. Michelin recommends 36F/42R for the Power Pures according to Desperate SP2 on Speedzilla.com. Both tires work fine for me at those inflations. The Michelin rep said the casings on the Pures are softer than the 2CTs, so higher pressures are highly recommended. He suggested 36F/34R at the track on the Pures. Maximum mileage is not an issue for me, either on tire or gas. A true story: a Buell owner who shall remain nameless because I don't want to admit such a stupid mistake checked his oil then went riding. He did not screw the dipstick into the hole. A few miles later he turned at a higher than usual speed onto an on ramp and the rear slid about a foot before hooking up. "Wow", he thought,"gotta come back and clean up that sand later". He then continued riding at a reasonable speed but not slowing for curves and corners with no further incidents. Upon arriving at his destination he glanced at the rear tire and wondered how it had become so "wet" in the middle of a drought. The "wet" was, of course, oil. He cleaned it off with brake cleaner and dish soap, then rode on the tires for 2500 more miles, including track days. Great tires and lucky rider. The tires were OE Pirelli Diablo Corsa llls. Robert | ||
| Xodot |
On the stock tires... Road:f/r 35/32 Track:f/r 32/29 ...because an area wizard in such things suggested it, I tried it and have had no issues. My question is "What change occurs running the front softer and then firmer than the rear tire?" This would change handling more than a few psi would. | ||
| Duff24 |
Gosh all the psi numbers sound way too high for what I've always ran in my XB's and any other sportbike for that matter. Are the 1125's that much different that you need to run tire pressure 10lbs higher than other sportbikes? I'm looking to get an 1125R and would like to know why the manual says to run tire pressure so high. I've always ran my XB's at about 30 psi front and rear. | ||
| Jdugger |
> Are the 1125's that much different that you > need to run tire pressure 10lbs higher than > other sportbikes? The owners manual specifies 34 Front and 36 Rear. I've found that to be a good starting point for spirited street riding. The guys posting numbers in the 40s aren't riding their bikes very hard. I'd put $10 on there being a DIRECT correlation between MPG, Tire Life and Stator Failures. | ||
| Jdugger |
mtch, I ran some power pures recently as well. One track day and one long street ride in the canyons. At 32f 34r cold (I usually run tires a titch soft and suspension more firm), I found the pure to "drag me down" a bit going into corners, suggesting it could have a higher pressure by a couple of pounds. Traction was ample for the street with no slips or unpredictability. In short, a great street tire. After 600 miles, I'd say I have about half or just more than half a tire left, so long lasting, too. On the track, I ran them 28 Cold, and though they wore well, there's just not the grip and drive out of the rear I like to feel. I think it's a fine choice of tire for sporting street riders and level 1 & 2 track days riders. Track day guys that run near race pace or are used to race compounds and warmers probably won't find the grip they are looking for in the pure. | ||
| Dannybuell |
Jdugger - "I'd put $10 on there being a DIRECT correlation between MPG, Tire Life and Stator Failures." HD must think so too. When I brought my CR in for it's 620mi they did a tread depth check as I was dropping the bike off. How can stators can be linked to tread wear? No tread wear bad stator? | ||
| Zac4mac |
The tech's checking the tires has nothing to do with the stator. SOP as tires are good money makers. And it's a Safety issue. | ||
| Drawkward |
I'm pretty amazed by some of the responses in the 40psi range. One guy even said the bike handles like "poo under 38psi". I don't know about you but I'd never run my tires over 36psi hot on the street. I'm not longevity guy like froggy and I like to have a nice contact patch under me when I ride. Tires: Pirelli Diablo Rosso Corsa Street: 33/34 Track: 29/30 hot Reason: South Central Race Center (trackside Bridgestone and Pirelli support) suggested those pressures. Haven't looked back ever since. | ||
| Mtch |
from michelin uk Thank you for your recent e-mail. We would advise that for your 2010 Buell 1125CR if on tyre sizes front 120/70 – ZR17 58W T/L (tubeless) and Rear 180/55 – ZR17 73W T/L the tyre pressures should be as follows:- Front – 33/34 psi (pounds per square inch) Rear – 36 psi (pounds per square inch) You would be advised to follow values indicated in the motorcycle handbook in relation to the tyre size fitted – specifications can change without our knowledge. We have allocated your message the reference number indicated above. If you need to contact us again regarding your message, we would be grateful if you could include the reference number. Once again thank you for your interest in Michelin. Yours sincerely Michelin Tyre Public Limited Company | ||
| Jdugger |
> How can stators can be linked to tread wear? > No tread wear bad stator? The linkage is the rider. The guys out nursing the gas and short-shifting at 4k all the time are the ones getting 2k+ out of a Corsa III. | ||
| Jdugger |
> And it's a Safety issue. Vastly overinflated tires are probably a bigger safety issue, honestly. There are guys on here running around with pressures in their tires above the recommended MAX pressure for the tire itself, much less what the bike recommends as a reasonable starting pressure. Nuts. | ||
| Milleniumx1 |
I've been 32/32 since having the Michelin Pilot Power 2CT's put on a few hundred miles ago. I bumped them to 34/36 (F/R) this weekend and I could tell a difference ... Felt better to me. This is something I never experiences in all my years of riding H-D big twins - A slight tweak in air pressure makes a noticeable difference! |
