need help on choosing a new cassette

[rb58]

I agree. A really easy job.....

 

[400bhp]

I used to ride up Mow Cop/Winnats on 42 x 21 - yes it wasn't a pretty sight, and I was young .

I used to ride with a min 42 x 18. Winnats was the only hill I ever had to get off and push. Actually that's a lie, I fell off

Managed Swiss Hill plenty of times-god knows how

 

[cousi.hill]

thanks for that i will have ago tomorrow i thought it was more serious like a new chain or rear derailleur