I had an accident that broke of my rear derailleur and have to buy another one. I was thinking of taking the opportunity to get an upgrade.

I want to have a little higher final speed without loosing my hilly capacity but didnt found any cassete with less then 11T. If theres something with 10-32T on the market that would do for me. Is there?

My currently setup is 11-32T behind and 52T in the front.

Was thinking of buying this 44-55T chainset but Im not sure if the rear derailleur will be enough for a good chain tension.

Resuming, my questions are:

1) are there 10-32T cassetes on the market? where?
2) if not, will my dahon speed p8 need what rear derailleur to fit a 44-55T in the front and 11-32T in the back with good chain tension? The "Dahon Neos 9 Rear Derailleur" will do it?

get a new wheel built around the shimano Caprio hub/cassette for small wheel bikes, it's a 9~26t

https://store.bikefriday.com/product...ducts_id=15415

https://store.bikefriday.com/product...ducts_id=10261

they can build the wheel for you, too..




.....

I was thinking... If I could buy just the 55T single gear in the front, a cassete with 11-34T behind would do it for me. Is there this possibility on the market for my bike?

RD wraps up the difference in teeth counts, which, as you wrote, 55-44 = 11.

Thanks for the tips fietsbob

How do I know witch cassetes fit on my bike frame and wheel?

Will try to put a 11-34T cassete

Measure, count sprockets. [Stick with the same number of "speeds"]