After Googling around a bit and reading through some similar threads here on this forum, I still wanted to ask a couple questions before I started ordering parts on-line.
I'm a very casual bike rider. I have a 10 year old Gaint Sedona DX 23" bike with a baby seat on the back. The other day, I was riding with my 40 pound two-year-old in the back when my left crank arm came off--luckily I managed not to crash, but I'm sure it was quite the sight watching us scoot all the way back home through the neighboorhood.
I wasn't able to find the bolt that held the left crank arm on. The crank arm is a SR Suntour 170mm arm. I see the number "846" stamped on it, but I don't think that's a SR Suntour part number. The square hole in the arm was damaged a little bit when it came off, but doesn't look too bad.
I'm trying to decide whether I need to buy just a new bolt, or if should buy a new crank arm and bolt. Also, I'm not sure if this is something I can do myself or if I need to bring it into a bike shop. I've seen a couple of posts mentioning that cranks need specialized tools... would putting the arm back on require anything more than an allen wrench?