Trying to get my danon ready for lots of road riding this year and am up to gearing. At the moment I spin out at around 35 km/h as my 7 speed rear cartridge only goes down to a 14 tooth.
I bought a bling 28 hole cassette compatible rear hub and am trying to decide between 8 and 9 speed. I am pretty sure they get the additional ring in by reducing the spacing rather than increasing the cassette width, that's why you need a narrower chain for 9 speed. I think that means the maximum chain deflection or bend to reach the extreme rings will not change.
I currently run a 53 tooth front chain ring and am looking at going to an 11-28/30 rear cassette.
Is anyone running 9 speed on their folder? Any experience with chain breakage or excessive wear? Is it worth the extra effort to go 9 speed?