Originally Posted by
commute
Doh! Those teeth have been half size for the last year or so (since I checked last), so I just assumed that half height teeth were the correct size.
I guess the Sugino crankset is better than
Alivio M410?
I think that the broken chain ring teeth can quickly destroy your chain.
Sugino XD300 is a very good crankset. It has the steel chain rings that are more reliable than aluminum ones.
Shimano Alivio has a different interface: Octalink.
You have to buy a compatible bottom bracket.
If you have to change both the cassette and crankset, first calculate the gears for your current setup
http://www.sheldonbrown.com/gears/
Find out what gear ratios are your favorite and then compare with available cassette/crankset combinations.
It seems that all your components are worn out.
I would consider changing the following:
1. cassette
2. crankset with bottom bracket
3. cables and housing
4. brake pads
It's just cheaper to buy all components at once if you want to order online.