Search the Community

I'm trying to replace my chain. Do I have to remove the huge bolt as seen in the attached picture to properly do it? (my current issue is that I don't have a big enough wrench) I watched this video http://www.youtube.com/watch?v=kMGxMxvUTV0 And it looks like he has everything taken off. If I do need that tool can someone confirm that the bolt size is 46mm? (That's what it said in the manual) Thanks!

Let me start by saying, sorry for making another tire thread. The reason I'm starting this thread, is to share my mileage experience with PP vs PR2 tires. I have now used up my 3rd combined set of PP front-PR2 rear. After getting much less miles from the first set than I expected, I started writing my mileage at time of tire swap on the inside of the wheel, and/or on the sidewall for reference. Data was skewed on the first set, as I found that the Michelins required more frequent air pressure checks than the Diablos I was running previously. I ended up running those closer to track pressures most of the time, leading to faster tire wear. The last 2 sets I have checked pressure almost religiously before every ride, or every couple days. I installed set #2 at 26,500 miles and am now wearing the rear of set #3 almost bald at 32,300mi. That's an average of 2900mi/set. I was getting around 24-2700 with Pirelli Diablo and Pilot Power sport tires. Cost per mile comes out roughly the same - 12 cents per mile for the PP/PR2 combo($242/pr), 12.5 cents per mile for the sport tires($200/pr). Pretty much all my riding is back roads, I do commute but only a small portion of that is straight highway. I think the deciding factor that would sway me back to sport tires is the profile difference of the PP & PR2 combo. When the tires are new, it takes me about 50-75 miles to scrub them in to where they work nicely together - the rear feels slow to turn in when brand new - as expected, since the rear has more of a round profile vs the more pointed PP. More annoying though, is the mismatch at the end of the tread life. Easily noticed increase in effort at the bar to change direction. Anyway, just wanted to throw that out there. As always, everyone's mileage may vary... I will update with some pics of my toasted tires later today. Front is in the wear bars across the entire profile with the exception of the last 1/2" or so o neither side, rear is in the wear bars everywhere, tearing up on the sides, almost bald on the left and close to it on the right... It's kinda cool but it sure is getting expensive.