Join Date: Jun 2010
Location: NW,Oregon Coast
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 416 Post(s)
By the way, since the tires are 20', the low gears should be lower right?
FWIW I have the same IG hub .. with a 16t cog in a 26" wheel the chainring is a 39.
when in a 20" wheel the chain ring is a 53t.
gear inch sizes are pretty much the same...
so smaller chainring lowers the gear
NB IG Hubs have a torque limitations
on the low side, because they have reduction gears in them .
there can be too much..
SA 8 speed is an unusual one
the gear by way of chainring , a 30t, hub cog a 19, 21 or 23t.
the other 7 gears are overdrive..
It seems 20" wheels are what they had in mind..
Last edited by fietsbob; 01-09-12 at 11:36 AM.