9x 4.7 ? is kinda big...diameter 23cm ? the GWS was not so big I think...
Not to forget, I have a direct drive system....


I found a APC 9x4.7; 8x3.8; 9x3.8; 9x5; 8x4,5 so I hope I will find an alternative...but they all seem to be very big...

Greets
Sven