changing DT125R speedo

[Calum]

I imagine the speedo drives are different, not just the clocks.

[Minia]

I swapped them, worked fine no problem... check your speedo cable and hub maybe.

[DTR+NSR]

Tyre size? My speedo under reads 3mph of actual speed, due to different size tyre, if you factor in most speedos over read. Could be 6mph+ difference.

[Calum]

Their Car may read high and your speedo might read low.

Use GPS to know for sure.

[BlueMoto]

I spoke to a few of my friends who used to have DT's and they said that the speedo drive gearing is made to work with the KMH speedo, so i have to change the speedo drive to get the MPH speedo to register at the correct speed. Does anyone know where I can get a British speedo drive for a Yamaha DT125R 2003 from?

[NINJA]

@BlueMoto Fowlers stock them new or try ebay for a used one.

https://www.fowlersparts.co.uk/browser/manufacturer/yamaha/bike/dt125r/year/2002/model/dt125r-3rmm-2002-050-b/country/united-kingdom/colour/yamaha-black

[BlueMoto]

@NINJA thanks for the link. I didnt know fowlers had the unit listed as i was looking in the wrong place, i was looking in the DT125 2003 area not the DT 125 R 2002 area. Im going to look into getting that. Thanks! :grinning_face:

[BlueMoto]

Ive just remembered, ive got some supermoto rims being made for my DT and the rim size is the same as the DTX so im not too sure if I sould get DTX speedo assay or the DTR speedo assay.

Its mostly going to be in SM trim when I get the bike back from the shop with the odd occasion i decide to go full dirtbike mode.

[NINJA]

@BlueMoto The later 2000's DTR's are pretty much all the same. If you will be swapping the wheels from time to time, then I would suggest getting the correct speedo drive for each wheelset. Then swapping the drive's whilst swapping the wheels would be a simple task.

[BlueMoto]

@NINJA im tempted to do that but its just the fact that they cost liek close to £60 for one unit, i know its not much in total but i dont exactly earn much
Like the wheels cost me around £800 with tyres so thats scraped my bank cleannn for the moment

[NINJA]

@BlueMoto Which is why I said search ebay dude;

https://www.ebay.co.uk/itm/Yamaha-DT-125-X-05-speedo-speedometer-drive/132969183381?hash=item1ef594b895:g:O64AAOSwg~9cdv7n

[BlueMoto]

@NINJA funny thing is, thats already in my watched list! Do you know if there is a way to tell if its a British speedo drive from the DTX?

[NINJA]

@BlueMoto Check the part numbers I guess???

[BlueMoto]

@NINJA i bought it... hehe. Just got to hope it works and that the gears aren't too worn

[BlueMoto]

does anyone know if the trailtech speedos can be fitted to Dt's

[NINJA]

@BlueMoto Yes, I prefer the Koso units but the Trailtech units have a good reputation as well.

[finnerz89]

@BlueMoto yes I've got one on mine. Works a treat - bit of wiring to do and I made a mounting plate as the one you get with it is a bit naff.

Not a huge job though