wanna share my experiment here. notice my small cog?

last time, i wanted 14t on my 11-23 8s casette. since buying any brand casette, i wont find that 14t unless i upgrade to 9s but that would cost me extra on shifter. since 8s casette nowdays became cheap, so why not i try to mix 2 casette. i mix 11-23 and 11-28 casettes

i bought sunrace casette 11-32. within that ratio, i saw what cog i missed in my 11-23 casette. both my casette are sunrace, and sunrace casette u can open it piece by piece

and here i got!
8s 11-18 casette. only 1t jump each casette

and why im doing this?
do you have a feel mostly flat road/rolling when up gear, u will feel too loose and down ur gear feel too heavy?
i feel something missing there. thats why i try to experiment new ratio
are these ratio enough to climb hill?
for me yes. since im running on 16” 349 i had double chainring setup, that is 53/39. i had tried few hills such as fraser, blk pulau or jerai. the max cog i used only 15t so i decided to used this closed ratio casette.
and here we go

Last week, I also swapped my 8speed cassette from 12t to 11t( from another cassette) , but only one cassette.
This is another way to go lightweight. Hahah