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D3 speedo drive
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Jon
Blandford, Dorset
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May 16, 2019 - 8:47 pm
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i am collecting the bits to build a D1/D3 plunger, I have 85% of the parts now, I have wheels, brakes, spindles etc, I need a speedo drive. Is the drive specific to D1/D3 or can I fit the drive from a later model. Any advice would be very much appreciated 

thanks

jon

1954 D3 plunger

1969 BSA B25 Starfire

1975 Kawasaki Z1B

2004 BMW F650GS

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cocorico
Central France
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May 17, 2019 - 8:24 am
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I imagine that if it's designed for a 19" wheel, it will be OK, later models with 18" wheels will be different gearing. You could live with that and mentally re-calibrate the speedo using a cheap cycle computer.

1956 D3 awaiting a new magneto. 7 other bikes in the Barn, 6 runners and a still in progress Morini 250

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Jon
Blandford, Dorset
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May 17, 2019 - 3:32 pm
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cocorico said
I imagine that if it's designed for a 19" wheel, it will be OK, later models with 18" wheels will be different gearing. You could live with that and mentally re-calibrate the speedo using a cheap cycle computer.  

Thanks for that, I hadn’t thought about wheel sizes. It pays to ask.

1954 D3 plunger

1969 BSA B25 Starfire

1975 Kawasaki Z1B

2004 BMW F650GS

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