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[Andy C]

Chris.

It comes with a self adhesive velcro pad, I stuck the pad to the chrome bracket that secures the handlebars in place.

Perfectly readable in that place as the digits are about 17mm high.

If you look at the video on this url - https://youtu.be/hPTshoXzIyU which is of me putting the bike through it's paces you will be able to see it.

If you plan on using one make sure that the coil around the plug lead is secure as can be, mine is held in place with cable ties & an overal coveriing of heatshrink tube, I have also added a copper screen to the cable.

This has made teh display much more stable - if the coil can vibrate it seems to make the display jitter a bit, the copper screen also helps screen out electrical noise.

It is what it is - a fairly cheap solution but adequate for keeping an eye on engine revs, especially when riding hard.

[singleminded]

Thanks for the video. Out of interest, what size gearbox sprocket are you using and what is the rpm at 70 mph (a proper 70 mph, rather than an Indian Bullet speedo mph )

I have a Tollgate 625 engine in my bike and I'm using a 21 tooth sprocket. Rpm at 70 mph is 3700 or thereabout, as shown on a tacho like you have fitted..

[Andy C]

Allan.

Mine has a 19t gearbox sprocket - could easily pull another, but with the 19t sprocket it would be doing just over a ton at peak power so happy to leave as because lower gearing makes it a bit quicker and it is unlikely I'll ever be pushing it to a ton but I am pretty sure it could make it there !!

According to my calcs if you are running a 21t sprocket @ 70 you revs would be 3500 RPM with my 19t sprocket it is 3970 RPM - assuming your tyre circumferences are the same as mine.

I do have an excel spreadsheet I have built in which you just need to enter the various sprocket sizes and tyre circumference and it will show you what revs you are running at various speeds - welcome to a copy if you like, just let me have your email.

Cheers.

[stinkwheel]

For what it's worth, I fitted a VERY cheap ebay rev counter to my 612. One of the £7.99 chrome analogue Chinese ones.

It's rubbish. Don't bother. They don't really work. The readings are highly erratic and you can't get at the pot to adjust the reading without the aid if a can-opener. Even then, the response time of the needle is so slow that you'd have blown the engine before it caught up with you.

[Chris H.]

Chris.

It comes with a self adhesive velcro pad, I stuck the pad to the chrome bracket that secures the handlebars in place.

Perfectly readable in that place as the digits are about 17mm high.

If you look at the video on this url - https://youtu.be/hPTshoXzIyU which is of me putting the bike through it's paces you will be able to see it.

If you plan on using one make sure that the coil around the plug lead is secure as can be, mine is held in place with cable ties & an overal coveriing of heatshrink tube, I have also added a copper screen to the cable.

This has made teh display much more stable - if the coil can vibrate it seems to make the display jitter a bit, the copper screen also helps screen out electrical noise.

It is what it is - a fairly cheap solution but adequate for keeping an eye on engine revs, especially when riding hard.

Thanks for video and advice. I think I will give one a go.