OSSA gearbox

If in doubt, or it doesn't seem to fit elsewhere - put it here.

OSSA gearbox

Postby Lotus54 » Wed Jun 10, 2020 8:58 pm

Not vintage in the slightest. But I have a customer’s 2012 OSSA here that was stuck in gear. (I suspect ‘ham footing’ it.)
Here are a couple of pictures. It is a really neat setup- cassette gearbox, crankshaft comes out the other side. Crankcase is 1 piece, cylinder toward the back- exhaust out the back. Fuel injected (2-stroke).
If I recall, it weighs about 35lbs complete. (I weighed mine).

it is sitting on the clutch housing. It took me an hour to have it on the bench.
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1974 OSSA Explorer- 78 Benelli 750 sei, 73 Benelli 250 SuperSport, 68 Benelli Dynamo trail, 76 OSSA GPII Phantom, Beta XTrainer 300, 2020 Electric-Motion Escape ‘R’
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Re: OSSA gearbox

Postby John H » Wed Jun 10, 2020 9:54 pm

That's a beauty. What does the whole bike weigh?
Is the Trials meet still on at Marymont?
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Re: OSSA gearbox

Postby Lotus54 » Thu Jun 11, 2020 1:09 am

The Explorer version is 163lbs (street legal ans seat)
The 300 Factory trials version i had is 142lbs.

Marymont?
1974 OSSA Explorer- 78 Benelli 750 sei, 73 Benelli 250 SuperSport, 68 Benelli Dynamo trail, 76 OSSA GPII Phantom, Beta XTrainer 300, 2020 Electric-Motion Escape ‘R’
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Re: OSSA gearbox

Postby John H » Thu Jun 11, 2020 7:12 am

Isn't the Ahrma Trials still on at LeMay Marymont? I see they cancelled the swap meet but say the trials is still a go.
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Re: OSSA gearbox

Postby Lotus54 » Thu Jun 11, 2020 7:19 am

I didn’t make the connection.

According to the website- it is still on.

Please note: YES, the AHRMA/Redwood Engineering National Vintage Trial at LeMay is still on!

While the LeMay Motorcycle Days festivities have been canceled, AHRMA is still planning on holding a trials event, Saturday, June 20th, on the property. For details, please contact Dirk Murphy, (253) 606-5870, email: dirk33t@aol.com or Dana Salsman, (360) 751-6652, email: pcmx47@gmail.com.
1974 OSSA Explorer- 78 Benelli 750 sei, 73 Benelli 250 SuperSport, 68 Benelli Dynamo trail, 76 OSSA GPII Phantom, Beta XTrainer 300, 2020 Electric-Motion Escape ‘R’
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