Motorcycle Transmission gears

Posted By: HelpIdentify

What I'd Like to Know:

what make and model this will fit

History of The Item





6304lu sc03a59lu NTN Japan

Date Listed

May 15, 2019

Date Ending

August 13, 2019


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Well. I looked a little further at 5 speed Airhead transmissions that I suggested earlier. The middle shaft that looked to me as from one of these is not correct. The shifting fork ramp is in the wrong place and so definitely wrong. I will try to see if I can find something about early Oil Head 5 speed BMWs. But I don't have any experience with those anyway.


By: disston

Submitted on: 05/21/2018 at 05:07PM

Okay, thanks for letting me know!

Do you think these 3 shafts are from the same transmission? The middle shaft is called a layshaft and sits between the input shaft and the output shaft. Well, the middle shaft looks like one from a BMW motorcycle 5 speed made sometime between 1974 and 1995. It has the correct bearing to be from one of those. But the 2 end shafts are not from this vintage. There are differences in the models I think the middle shaft is from. If so it will have to be taken apart to identify which specific part of the vintage I have suggested. The early Oil Heads had a 5 speed also and these may have similar parts to the Airheads 5 speed I mention. If you really think these are from the same transmission I guess it may be from one of those. Don't know if I can find the info about those but I'll look a little into it and if I come up with anything I'll post more for you.


By: disston

Submitted on: 05/21/2018 at 04:54PM

I sent you a message. I'm not positive that they are a set, but they were in a box together.