suzue to profile hub upgrade?

Unicycles and Equipment
1

Hi all,
I’m wondering if anyone out there has tried upgrading from a suzue to
a profile hub on the same unicycle.

I have miyata bearing holders and figure it should be possible to
machine them out to take the 19mm profile axle. I’m worried about the
width of the profile hub though. Any one got measurements from the
inside of one bearing to another for the profile hub? Is it
comparable/the same as a suzue hub?

Te new hub is destined to go in my existing custom Muni frame.
Obviously I don’t want to shell out tons of cash for an axle that
won’t fit my unicycle.

Peter

2

I’m not sure about the width issue. Someone else will have to comment on that.

I believe Dan Heaton’s titanium trails frame uses the Miyata bearing holders and a Profile hub. So that part of your plan should be good to go. The Miyata bearing holders would of course need to be modified to fit the larger bearings. Anyone have any pics of Dan’s titanium uni hopefully showing the Profile hub?

3

RE: suzue to profile hub upgrade?

There’s picks at http://www.extreme.unicyclist.com/ in the features section
I think… but the server seems to be down at the moment.

I’m not sure about the width issue. Someone else will have to comment
on that.

I believe Dan Heaton’s titanium trails frame uses the Miyata bearing
holders and a Profile hub. So that part of your plan should be good to
go. The Miyata bearing holders would of course need to be modified to
fit the larger bearings. Anyone have any pics of Dan’s titanium uni
hopefully showing the Profile hub?

4

Peter,

The following bearings are listed to go with the Profile hub

Bearings:
99R12 (ID 3/4 inch, OD 1-5/8 inch, Thickness 7/16 inch), or
6203-3/4-2RS (ID 3/4 inch, OD 40-mm, Thickness 7/16 inch)

…the 6203-3/4-2RS bearings should have the same OD as the 6203 bearings on the Suzue.

You’ll need to drill out the holders to 20 mm or so to fit the axle through.

The profile axle has spacers to change the width of the bearings on the crank.

If the minimum distance is still a little too wide the n you can “cold set” (i.e. bend) your steel frame out a bit.

Leo White