this post was submitted on 06 Aug 2023
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Buying a tach for my 2014 Honda Shadow Phantom 750...drive ratio? (lemmy.world)
submitted 2 years ago* (last edited 2 years ago) by iturnedintoanewt@lemmy.world to c/motorcycles@lemmy.world
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Hi guys!

So, my 2014 Honda Shadow Phantom 750 (as any Honda Shadow, really) comes without a tach. I'm considering to buy one. I think on my previous one it might have been a Biker's Choice tach, and so I'm even considering the same one, as I was happy with it. But checking around, it seems I need to know beforehand the drive gear ratio in order to get proper measuring. How can I find out this on my bike?

Thanks!

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[โ€“] nudl@lemm.ee 3 points 2 years ago (1 children)

You would need to know the drive gear ratio if you were using an old (pre-early 1970s) mechanical tachometer that works off a spinning cable, but a '14 shadow 750 shouldn't have a thing to make a cable spin. You would use an electronic tach, which uses the spark plug wire as a signal.

[โ€“] iturnedintoanewt@lemmy.world 1 points 2 years ago* (last edited 2 years ago)

Thanks a lot! I had no idea, and this helps so much :)