Please bear with me because I am not that good with bike terminology / bikes in general.
I bought a carbon fiber giant bike, for $200. I had no idea what it was, i just needed a nice bike.
It says GIANT, MCM2, Carbon Fiber, and Kevlar wrapped on the frame. It has a sticker that says size 18.
I looked up the front shocks, they were made around 1995-1996.
Most of the parts say Shimano, Most are Shimano Deore LX. Including: The brakes, brake handles, derailleurs, hubs, cranks/gears, etc.
The pedals are Specialized.
I need to replace the crankset (I think that's what the front gear thing is called, the 3 large gears?) It's a 24 speed bike, 3x8.
How can I find which one I need? I have it in my garage so if I need to count anything, measure, etc let me know.
The bike computer was also made in the 1995-1996 timeframe, so I'm assuming the bike is from then. The shocks have been replaced, they are definitely not original.
If you need, I can post pictures, etc. The chain snapped last night, I am ordering a new one off of ebay. The front crankset says use Shimano IG Chain only, so I am ordering one from ebay.
I've had a few people check it out, they say it was a prototype bike, but I honestly have no idea.
Please let me know what you need to help me find this out, e.g. pictures, how many teeth in each gear, or anything else a noob like me can figure out. The model numbers are long worn off, it's likely a 20 year old bike with 20 year old parts.. The chain looked original too, and a friend told me it was hand crafted, tempered steel. This is the chain I am buying tonight: Shimano IG 70 3 32" Bicycle Chain 7 1mm 7 8 Speed 116L Silver Grey | eBay My old chain had 116 links and was around 7mm wide.
EDIT: Added pictures. Yes, the bike is dirty. I don't know how to clean it without getting it all rusty.
Thank you all in advance!!!!