| Author | Message | ||
     M1combat |
I'll be installing a set of sportec's this weekend... What are those of you with sportec's running for pressure. | ||
| Glitch |
Same as stock. 36 38 | ||
| Austinrider |
Same as stock. Actually, I forgot to re-inflate mine after going to the track one time. Ran them at 30/30 and the bike nor the rider was happy (but we were at the track  | ||
| Yeahcmon |
Stock press. Love those tires don't ya!!! | ||
| Xbolt12 |
Metzler recommends 34 front, 36 rear which works pretty well and wears well. Trevitt at SportRider magazine suggested I run 30 front and 35 rear on the street. I compromise and run about 32 front and 34 rear when I am up on Palomar (very tight roads and lots of tire heat) xbolt12 | ||
| Austinrider |
I never saw that Metzler recomendation. Im probably going to need to replace the rear here pretty soon. When I do Im going to try those pressures out and see what it feels like. I read on another post that a guy tried 2 lbs under Buell recomended and liked it alot. | ||
| Spike |
As a general rule of thumb, lower pressures increase traction, increase tire temps, and decrease tire life. Higher pressures will do the opposite. That being said, I'd stick with 36/38. If I know I'm going to be carrying a passenger or spending time on the highway I'll bump the rear up to 40 or 42. If I know I'm going to have a really gnarly day of riding I may drop the pressures to 34/36. Also, I wouldn't recommend letting the stock Dunslops drop below 36/38. For some reason lower pressures cause the stock tires to get chewed up really fast and causes the front to cup more than usual. I'll have my new Sportecs on next week. Mike Luddy, Jr. '04 XB12R (stupid race ECM) | ||
| 420at145mph |
i just bought a 50cent tire pressure gauge n my stock dunlops are both at about 30psi  | ||
| Xbolt12 |
If you go to Metzler's website (search) they have a PDF which tells tire specs and recommendations. Basically all bikes show the 34lbs front and 36 lbs rear as recommended pressure for M1 Sportecs. This doesn't mean you can't run 36/38 like in the Buell manual-just that they recommend 34/36. I ran mine at 36/38 at first (before I read the PDF) and I found the back was breaking loose easier than the stock 207's. A lot of that is just me as I tend to brake hard with the rear and sometimes end up backing into a corner a little (got to break those dirtbike habits). Anyway I agree with the post about pressure vs heat and wear. A lot of guys in So Cal air down once they get to the twisties, but I find the pressure too hard to accurately predict once the tires warm at all. Also the stock tires turn like crap but are very sticky compound, so I wouldn't air down too much with the 207's. BTW-if I did the math right, the M1's will end up lowering the front of the bike 7mm which will make the turning even better. I did do this calculation based upon manufacturers diameter specs, not measurements-so accuracy depends on their data (and my math). PS-next purchase will be Diablo Corsas. These use the same tire carcass and profile, but stickier compound than the M1. I am running into people who have lowsided their UJM's when the front unexpectedly lost it's grip with M1's. Seems to only happen in very hot conditions. Could always be the rider though xbolt12 | ||
| 420at145mph |
god i hope its the rider gets hot as all hell in north craphole dakota in the summer n i got a sporttec front tire in the garage n should have the rear by the end of next week |
