I need lower gears because I pull a bike trailer with 2 kids in it, and it gets hard going up hills. Especially since I'm not in shape or an experienced cyclist. My highest tooth count sprocket in my cassette is 28 tooth. The guy at the bike shop told me that 28 tooth is the highest you can get in a 7 speed cassette, But I have found as high as 32 and 34 tooth online. I assume he knows what he's talking about so I have doubts that what I'm finding online will work. My cassette is a shimano hyperglide.
This is what I intend to buy.
I am also confused about the chain that I should buy. The old chain (original, from 1992) says CN-UG50. In a description of the cassette I came across, it says nothing about UG50, but it does say that it's not compatible with IG50, and I'm not sure if that's the same. What chain should I buy that is a replacement for my original chain. I did find the UG50 which is supposedly obsolete; will it work? Is there something better?
Here it is.
This is what I intend to buy.
I am also confused about the chain that I should buy. The old chain (original, from 1992) says CN-UG50. In a description of the cassette I came across, it says nothing about UG50, but it does say that it's not compatible with IG50, and I'm not sure if that's the same. What chain should I buy that is a replacement for my original chain. I did find the UG50 which is supposedly obsolete; will it work? Is there something better?
Here it is.