my 09 under control la

all c-hing, sorry for typing in english cause i dont know how to type chinesse
my 09 under control la finally but i have to cut the rear tire in smaller diameter than front tire am i right????please tell

how come to have this idea

i dont know ar just try how about yours

I havent tried my 09 yet.  no time to test....but I would like to disclose the following tips for other 09 users.....

1) Many people install 5x10 thrust bearing at the rear shaft

2) The height difference is 4.5 and 7 mm in front and rear respectively.  I add 2mm shims at the rear to lower its height difference.  Now the front and rear is 4.5 and 5mm.

let's try in this week end, thanks