Just a note through a discovery I made the other night on a ride...

...one of my friends had a chain break and it was an 8 speed chain I had forgotten my tools due to cleaning out my pack, anyway a fellow rider loans me a chain tool to fix the friends chain. It would not fit the 8 speed chain looked like only 9 speeds chain would fit, actually too narrow to fit the chain in. I didn't get the model cause it was dark, and everyone was in a hurry to get going, cold out ya know!

Unknown to me are they making chain tools now that only fit certain chains?

So, the moral of my story is check your chain tool that you use on your chain, just in case it doesn't fit, and leaves you stranded.