RD500 Speedo

[bezzer]

Hi Lads,

Has anyone had experience of converting an RD500 KMH Speedo to MPH?, or even know if it is possible or not?.

I know replacement faces are available for the 250/350 4L0/1, and clever people have re-geared them to read and record correctly, but I’ve not heard of anyone doing this conversion on the 500?.

I always say this, but as ever, any help would be greatly appreciated.

All the best Iain.

[midlifecrisisrd]

Should just be the same Iain

I've fitted new face decals to a 150mph 500/350r/tzr Speedo. They are essentially the same as the f2 Speedo, just the digits go round further

Steve

[midlifecrisisrd]

Can you not just buy an fz750 Speedo and swap the needle?

Steve

[bezzer]

Hi Steve, That’s a very good suggestion... does the FZ use a 16” front wheel?, as I’d need the speedo drive too presumably?.

[midlifecrisisrd]

Speedo drive will be fine. Think it is 16 inch wheel but a km bike and a mph bike have the same drive

If you look at the Speedo drives 60 mph and 100 kph are in the same place

Steve

[russie]

If it’s any help, I had an 86 FZ750 back in the day and it definitely had a 16” front wheel. I believe they changed to a 17” wheel after 88

[bezzer]

Thanks Steve/Russie for your assistance, another example of why this forum is so great 😁👍🏻 Cheers boys!!.

[julianboolean]

Dec 8, 2020 23:12:50 GMT 1 russie said:

If it’s any help, I had an 86 FZ750 back in the day and it definitely had a 16” front wheel. I believe they changed to a 17” wheel after 88

Yep, 85 - 88 FZ has the same wheels as the RD500, 89 - 91 has the same size wheels as FZR600, might be the same wheels, which in theory means you could put late FZ wheels straight into an RD500

[bezzer]

...... and therefore a greater choice of tyre with it 🤔, interesting, thanks JB👍🏻