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Newb question but I see a lot of reference to needle bearings in the head tube but both frames I have are ball bearings? It doesn't look like I can pop any sort of cup or race out of the frame either?
Gottcha. Thanks. I looked at Mikes for those parts after I posted and saw nothing. If anyone can direct me to the right place that would help. I should have the Narrow glide front end on as soon as I get bearing.
Also, I actually have the cups and bearings for the Harley front end. They are needle bearing.
bunch of vendors sell what you need, all balls is famous for their roller kits (oddly enough!) I think pyramid sells a set also. flea bay is full of sellers of tapered roller bearings.
Anyway.. wait until you get a set in there.. From then on it'll be one of the first things you do to any old bike that doesn't have them. So much better! I'm pretty sure the same set that works on the XS650's works on the maxims and SR500 too. I put a set in a maxim 650 and the box from another set said XS650 and SR500 on the back. They'll probably work on a lot of other old Yamaha's too.
You may need a set of conversion bearings if you are putting a Harley front end on an XS frame. I may be wrong as I have never done the swap. Hopefully someone with experience on the swap can chime in.
"get the tapered roller kit, use the races that go in the 650 frame. The 1inch harley bearing will fit right into the races. You may have to thin the upper lock nut on the stem so the top tree of the springer will bolt down right." Quote from xsleo on 650 rider
Thanks! I'm not running a springer though. I'm doing the Harley Narrow glide up front. There is a great write up in the tech section on this site. I'm gonna try and push the race out of the Harley cup and measure it to see what the difference in size is compared to the XS head tube.
This is whats supposed to come out. The upper and lower races . Two parts each. The ball bearings went on the floor..tink tink tink. Notice the new tapered bearings in the bottom of the picture.That black rubber dust to the left seal goes all the way down against the lower tree.
The old bearings can be greased and reused. New balls are about $12 for a box of 100 if you want to freshen them. If they are notchy the bearings and races have to be replaced to fix it. No amount of grease will do it. Thicker grease rather than thinner seem to be best to grease them with.
Put the races from the 650 bearing kit in your frame. Put the Harley bearings on the Harley tree, put the Harley tree in the 650 frame.
The 650 bearings wont fit the Harley tree.
The Harley bearings fit the 650 races.
Well I didn't buy the kit to install the bearings. I simply purchased a set of tapered roller bearings which fit the Harley tree. The top fits fine but the lower is loose. I was just wondering if anyone knew how I could space them to fir or make something I could press the bearings into?