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Fork Leg Questions
Fork Leg Questions
The first of many dumb question I fear.
The "legs" that the brakes set in...facing up in this pic.
Do they face in towards the hub. Or face out away from hub. What forks do I actually have here? Which is LH and which is RH Note that one fork leg does not have the pinch clamp set up.
I cant see any R90S pics on line that show my setup. Thanks
Richard
- schrader7032
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Re: Fork Leg Questions
All pictures I see online show that both fork sliders have pinch bolts. So, I'm not sure what the second one you have belongs to.
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- srankin
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Re: Fork Leg Questions
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Re: Fork Leg Questions
You must have an (early?) '74 R90S. They came with the fork setup you have. Your bike also uses a smaller diameter 14mm axle rather than the 17mm one the later bikes use. And yes, only one slider has a pinch bolt. If I remember correctly, the one without the pinch bolt goes on the left side and the threaded end of the axle goes through it. There should also be some spacers/reducers that go through the bearings in the wheel hub to reduce the axle hole diameter to 14mm.
Hope that helps.
Chuck S.
Chuck S
Re: Fork Leg Questions
Thanks to all.
Chuck S I think you have it....defiantly no pinch bolt set up on that one fork...not even drilled for it.
So that must mean that there is a spacer between the bottom of the LH fork leg and the LH side of the hub.
To stop you just winding down on the axle nut and dragging the bottom of the LH fork leg in to the hub.
None of this is on any of the parts diagrams I have seen that is why this has become such a chore.
Thanks
Richard
- srankin
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Re: Fork Leg Questions
Maybe I have been away from the 90S bikes to be giving help on them. St.
- schrader7032
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Re: Fork Leg Questions
https://www.realoem.com/bmw/enUS/showpa ... Id=36_0154
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
Re: Fork Leg Questions
Thanks Kurt it does.
It shows the 14mm axle as part #8 and the spacer #9
The spacer #9 is what is missing from the puzzle that is my bike/pile of bits.
Thanks guys it all make sense now.
Richard
- schrader7032
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Re: Fork Leg Questions
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.