<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by s4strati &raquo;</TD></TR><TR><TD CLASS="quote">i recommended going to the 39 out back because knapp mentioned he already went down a tooth in front. your bike running 15/39 is very different than a mostly stock s4 running 15/39. you've got them fancy red-heads, don't you?</TD></TR></TABLE>

Sorry, I missed the previous mention of that knapp717 had already dropped a front tooth. His current combo is not much different then mine. No red-heads (that's foggy123), but not stock heads either .

Mike, I have a PCIII and I regularly ride from sea-level to 7000+ feet. Runs fine all the way up and back. No issues at all.