[esq'z me]

I understand exactly what you are saying Ralf, and it would work just fine....

But wouldn't the 2010 front wheel fit with a change of bearings for the large OD axle? Bearings are available from a number of sources in virtually any size and specification you can imagine, and an interior spacer could be easily fabricated if the older wheel spacer didn't work.

The only dilemma may be the brake rotors, as the radial brakes use a different diameter and the bolt pattern on the 2010 wheel would need to be the same as the earlier so he could use his existing rotors....

 

[haupti]

I understand exactly what you are saying Ralf, and it would work just fine....

But wouldn't the 2010 front wheel fit with a change of bearings for the large OD axle? Bearings are available from a number of sources in virtually any size and specification you can imagine, and an interior spacer could be easily fabricated if the older wheel spacer didn't work.

The only dilemma may be the brake rotors, as the radial brakes use a different diameter and the bolt pattern on the 2010 wheel would need to be the same as the earlier so he could use his existing rotors....

Right to fit larger ID bearings would be an option if those are available.
I barely know the ID of the bearings and some one mentioned that the 2010+ wheels have even a smaller seat for the 25mm bearings.
As off my knowledge is every other dimension, including the flange for rotors, exactly the same.

 

[esq'z me]

Just need ID of wheel bearing seat and OD of axle, and width of bearing.....head to the bearing house. Spacer from original wheel should fit no problem.

 

[gotojoe]

Hmm I'm struggling here guys

To fit a 2010 wheel to a Showa fork we are starting out with a 2010 wheel which has a type 6005 bearing fitted. The dimemsions of this brg are 25 x 47 x 12 mm

The 2009 and previous ( including the Showa fork bikes ) wheel bearings are type 6907 which have a dimension of 35 x 55 x 10 mm

Which wheel spindle do we use ?

If you used a Showa spindle the bearing would have to be 35 x 47 x 12mm

Is a 2010 spindle compatible with the clamps on a Showa fork ? Maybe it is ?


If not, as I see things you would need to have a special spindle made to 25 mm spindle and to suit the clamps of the Showa forks ?


joe

 

[roca1976]

Wow what a helpful forum!
The guy has a set of radial forks from the same 2010 brutale
I will measure to see if they drop through the f4 forks. Think i may be in danger of creating too much work!

 

[gotojoe]

thats good,,They will fit, you'll need the radial calipers, lines and the discs are 320mm ..you'll need those too as yours are 310 mm..Don't forget the 2010 wheel spindle and nut.

joe

 

[haupti]

Joe I fear the easiest way would be for me to use the 25mm axle of the 2010+ and use groove bushings to clamp the 25mm axle inside the 35mm Showa fork bottoms.

 

[gotojoe]

Joe I fear the easiest way would be for me to use the 25mm axle of the 2010+ and use groove bushings to clamp the 25mm axle inside the 35mm Showa fork bottoms.

Ok Ralf, I see the principle. The clamping would take place outboard of the 25mm spindle section (which marries with the bearing) so it would be a thinner sleeve.I have no idea what diameter the Showas clamp down to.

Anyways it's academic in this instance I think as op is going to get some radial forks : )

joe

 

[esq'z me]

The simplest solution would be to buy some 35 x 47 x 12 bearings and put them in the new front wheel with the central spacer from the old wheel (35 mm ID). Least expensive option, too (no new forks, brake calipers, rotors, etc).

6807 is 35 x 47 x 7 bearing....easily found and available in ceramic bearings, too. I think you could use that one, but will need a 5 mm spacer on either side to make up the thinner section and allow the axle to clamp correctly. But maybe the cross section bein 5 mm thinner would lose some load strength. I defer to more degreed mechanical engineers on that one.

 

[roca1976]

The ideal bearing size sounds like distance between the races is to small for balls
The problem of fitting a grooved bush is that you couldn't guarantee a particular gripping force on the spindle
The pinch bolts are just that, not strong enough to clamp / over torque.
It will never be a Minter so diff colour wheels won't be a biggy...
I appreciate all your effort in finding me a solution

 

[gotojoe]

The ideal bearing size sounds like distance between the races is to small for balls
The problem of fitting a grooved bush is that you couldn't guarantee a particular gripping force on the spindle
The pinch bolts are just that, not strong enough to clamp / over torque.
It will never be a Minter so diff colour wheels won't be a biggy...
I appreciate all your effort in fJusinding me a solution

I agree with you 100% on the basis that this is not a shopping trolley :jsm:

 

[theknurl]

bearings??

35x47x12????? please, its not in my bearing interchange guide

roca1976;
you need to decide which wheels you want to run

the easiest is to buy a silver star rear

use the '10 hub and axle

sell the rest off

if the ride height adjuster is the same you might want to keep it for the rose joints