A forum for owners of Yamaha TTR250 trail and enduro bikes!

If you mean aftermarket speedos, here's a thread on Koso and Trailtech, both of which use a magnet and sensor on the front end, which I have been very happy with:

www.ttr250.activeboard.com/t63528559/after-market-speedos/

The original magnet/sensor would be totally out in terms of speed readings, even if you managed to mount it on the front spindle, although there's a good winter project for someone (without a life!) working out the correct number of rotations of the drive sprocket per rotation of the front wheel, fitting a hall effect sensor on the front fork, spliced into the original OE speedo, and fitting a suitable number of magnets to the front wheel hub/disc to make it think it's getting the same signal, and maybe fine tuning the speed reading with a DRD speedo converter...

totallyttrs.com/epages/699105d9-e4cc-4b32-b236-84e72cd67f84.sf/en_GB/


A bluey speedo drive and analogue speedo sort of fits with a few tweeks I think, but the forks don't have the correct lugs cast to hold it in place.

You could alternatively fit a sender cover like this, which makes cleaning easier:

totallyttrs.com/epages/699105d9-e4cc-4b32-b236-84e72cd67f84.sf/en_GB/

Welcome to the forum by the way

Simon.

i fitted a trailtec on my white oe great bit of kit easy to install john

Trailtech...

Thanks for the advice and links, I did a quick search on previous but drew a blank.

Emailed Totally TTRs to see if they have any cover plates as they are currently out of stock. 

 Appreciate the welcome too 😀