Hey I’m going through the same thing. I needed 696 front wheel, no dice but the st4 had the same bolt pattern and wheel dimensions. Here is the problem I have run into. The bearings are recessed on the st4 wheel on one side making the spacer on the monster not fit quite right. I’m not sure if I can just change the bearings, or if this is an indication that the hub depth and diameter are different.Ducvet
Thanks for the reply. I do have a 6 bolt rotor. I got lucky and a 696 front wheel came on eBay over the weekend and I bought it quickly!
Here are a couple of pictures the old wheel is the black one. Both of the pictures are the clutch side of the wheel. The silver one is indented about 1/4-3/8 of an inch it has a lock ring thing on top of the bearing with small raised portions I imagine that is for prying it out with a screwdriver to get the bearing out, but maybe that is for the Speedo drive you mentioned. The raised section on the plate prevents the spacer from sitting against the bearing which in turn means it would get smashed when tightening the axle.the st4 had a speedo drive. you may need a spacer the same width as the speedo drive, but i would have thought it'd be the same regardless. although i see there are two different 696 front whee #.
do you just need to remove the old speedo drive toothed ring?