wojtek
100 kW
yes i went to the bmx bike shop where they had only 14t freewheel. luckily i took the hub motor wheel and realized that it doesn't fit.
apparently there are 2 sizes of freewheel smaller and larger. so anything from 16t should fit the hub... not sure you can get less than 16t in the larger diameter size..
the freewheel i got was cheap chinese, thicker than standart 9 / 10 speed but it seems my 2010 kmx cobra does use thicker chain... i needed to add a bit of chain and that is where i noticed that some of my chain didnt fit and some did [8 speed chain, sram PG850 was good]
apparently there are 2 sizes of freewheel smaller and larger. so anything from 16t should fit the hub... not sure you can get less than 16t in the larger diameter size..
the freewheel i got was cheap chinese, thicker than standart 9 / 10 speed but it seems my 2010 kmx cobra does use thicker chain... i needed to add a bit of chain and that is where i noticed that some of my chain didnt fit and some did [8 speed chain, sram PG850 was good]