[Ducman851]

The reason they have different part #s is that the 620 comes with a steel swingarm and the 1000 has the aluminum one. They are both have the same inside width. To put a 5.5" wheel on your bike you will need the wheel and the sprocket carrier for the 5.5" wheel. The 620 carrier is a tallet unit and if used the wheel wont fit. You may also have to shave abit off the brake caliper holder to align the sprockets but you can tell when the wheel is mounted if they are in line.

I have an S4 swingarm thats going on my 620 with a 5.5" wheel and this is what Ive found.

 

[Ducman851]

Ducman...1st...thank you for some deeper on hand explanation of difference....2nd...I'm curious...what size tire will YOU be running?...170 or 180?

Ill probably run a 180 or equivalent slick. This is a track only bike and is getting a set of Marvic Mags.

Heres a track shot of the Monster at BIR, It has Cyclecat Rearsets and Termi High exhaust. This was with the stock wheels and a 160 on the rear. So you can get it over pretty good on good tires and the stock wheels.

 

[Ducman851]

BIR?.....or VIR?....if VIR...South or North?...and will you be at the MAD-Ducati event at VIR north in April?

BIR= Brainerd Intl Raceway