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rimcanyon
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VBMWMO #8901
Joined: 04/11/2015
Posts: 92

My 64 R60/2 project's next step is to replace the telescoping forks that were on the bike (from a later BMW) with a set of Earles Forks procured on Ebay. Unfortunately, the Earles forks bought on Ebay clearly need to be straightened.

Are there any specs available for the Earles forks?

The swing arm should be pretty straightforward, the straightened swingarm should have the correct distance to fit a wheel and each arm should be straight.

What should the angle be on the Earles forks between the steerer tube and the forks?

-Dave

tonyhutchinson
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Durham England
Joined: 08/17/2015
Posts: 98
you could try sending an

you could try sending an email to BMW archive group ,they have a lot of info. and can be really helpful. Andreas Harz is the contact

info.grouparchiv@bmwgroup.com

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Tony

rimcanyon
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VBMWMO #8901
Joined: 04/11/2015
Posts: 92
BMW Archive Group

tonyhutchinson wrote:

you could try sending an email to BMW archive group ,they have a lot of info. and can be really helpful. Andreas Harz is the contact

info.grouparchiv@bmwgroup.com

Tony, thanks for the suggestion. I have contacted them, they are closed for the Christmas break until Jan. 8, but I will post any information I receive.

schrader7032
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VBMWMO #7032
San Antonio, TX
Joined: 10/27/2006
Posts: 6327
Just what is bent with these

Just what is bent with these Earles forks? I've taken a quick look at my R69S. There is a small straight portion near the top that is parallel to the headstock of the frame. Then there's a curve in the down tube which angles back towards the bike. At the bottom of that down tube, the swingarm for the front attaches, which is essentially parallel to the ground.

By taking some crude measurements, the angle between the small straight portion at the top and the part that curves back towards the bike is around 37 degrees. If this is what you're trying to figure out, it will be curious to see what BMW says.

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

rimcanyon
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Joined: 04/11/2015
Posts: 92
The forks are way out of alignment.

schrader7032 wrote:

Just what is bent with these Earles forks? I've taken a quick look at my R69S. There is a small straight portion near the top that is parallel to the headstock of the frame. Then there's a curve in the down tube which angles back towards the bike. At the bottom of that down tube, the swingarm for the front attaches, which is essentially parallel to the ground.

By taking some crude measurements, the angle between the small straight portion at the top and the part that curves back towards the bike is around 37 degrees. If this is what you're trying to figure out, it will be curious to see what BMW says.

There is quite a bit out of whack with the R60/2 Earles forks (which I sent to GTE in Montague, CA). The top crown doesn't come close to fitting, the swing arm is not symmetric (the angles are different on each side), the flanges for the upper shock mounts are not parallel to each other, i.e. one is at a slight angle. I have another set of R69S Earles forks, which are perfect, so I am debating whether to use them or to wait for Vern to straighten the R60/2 forks. The only difference between the forks is the R69S forks have the mount hole and pins for the hydraulic steering damper.

I have not heard back from the BMW archive.

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