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R90/6 shift lever conversion
R90/6 shift lever conversion
I want to convert a stock R90/6 shift lever to a heel&toe rocking lever 23411239023. The only problem is how does it attach? I was looking at Matt Powdermaker's "custom" bike from the previous post and it looks like he might have fabricated a plate since the plate looks like flat aluminum plate stock.
I was able to find a plate 46711454717 from some 80s bikes that looks like it might work, but I'm not sure it attaches to the frame the same way as the stock foot rest (no "teeth" to mate with the teeth on the frame.
Anyone have experience with this?
TIA,
Randy
- schrader7032
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Re: R90/6 shift lever conversion
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
Re: R90/6 shift lever conversion
I have never personally seen that type of linkage but you can see an example in the pictures of the bike in the previous "custom bike" post.
- schrader7032
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Re: R90/6 shift lever conversion
So my /7 has #8 from the parts diagram as well as #12 turnbuckle. Maybe your shift lever is more like #2 in the diagram. Seems to me that you ditch #2 and bring the parts up to the /7 level but instead of #8, you find a heel-toe shifter instead.
https://www.realoem.com/bmw/enUS/showpa ... Id=23_0269
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
Re: R90/6 shift lever conversion
- srankin
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Re: R90/6 shift lever conversion
The shift lever on the R90/6 comes straight off the side of the transmission and I don't believe (unless there was a special police bike lever) there ever was a heal and toe shifter available for those bikes.
I would think a good fabrication/machine shop would be able to make something for you. Good luck and let us know how it turns out. St.
- srankin
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Re: R90/6 shift lever conversion
If you are talking about this bike, viewtopic.php?p=5889#p5889 it is a R90S transmission but the shifting mechanism is off a /7 bike, not the R90S or /6 bikes. It may be possible to fit a /7 style foot peg assembly onto a /6 bike, I don't know for sure as I have never tried it. It is also possible the builder used a /7 frame with a R90S engine and transmission.
Kurt says, the R90/6 shift lever bolts directly to the transmission same as it did on the R90S bikes. All the /7 bikes used the shift lever on the foot peg with the link to the transmission. St.
Re: R90/6 shift lever conversion
I have done an extensive search for it with no joy. I'll have to ask around and find the one person that may know.
Thanks guys,
Randy
- schrader7032
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Re: R90/6 shift lever conversion
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- srankin
- Posts: 1085
- Joined: Fri Jul 14, 2017 8:45 pm
- Location: Spencerport, NY USA
- Been thanked: 21 times