Yamaha TRX850 Enthusiasts Forum

How do.

Has anyone fitted these:

https://www.bikefarmmv.com/epages/79512 ... 550%5B3%5D

I'm thinking of getting the 25mm raise kit as want it to steer a little sharper etc and they seem to be a bargain!

Cheers, Adam

Have the forks already been lowered through the triple clamps? Std is 18.5mm from the top of the bar clamp to the ring below the top of the fork tube. See the manual page 7-40 for the picture.
You can easily drop them a further 10mm to 12mm to quicken up the front end.
For a 'jack up kit' , contact Projection Components and ask if they can still supply TRX dogbones.
They used to make various bits and bobs for TRX's and just because its not currently on their web page doesn't mean they can't still make them.
https://www.projection-components.co.uk ... us-2-w.asp

I might have some dogbones left. Only thing is I don't know what length you need for a 25 mm raise.

From here: http://www.trx850.com/phpBB_forum/viewt ... 379#p78379
You can interpolate and get...
dogbone / lift
179mm / 12mm
178mm / 15.2mm
177mm / 18.3mm
176mm / 21.5mm
175mm / 24.7mm
174mm / 27.8mm
173mm / 31mm

So, 175mm centre to centre should give you about 25mm lift.
This is approximate, I think I have the accurate numbers somewhere but can't find them at present.

Cheers all

Going to drop the yokes by 5mm and see how that feels as no manual so can't see what they are meant to be std

Will try the dogbone route later if I start grinding out but don't think I'll be cranking it that far over at the moment due to cold and slimy roads here!!

You can download the service manual here... http://www.trx850.com/hosted/manual/trxmanual.pdf (11.3MB)
Check what size front tyre you have fitted.
Standard spec is a 120/60, which is a weird size and not so easy to get hold of these days.
They put it on as at the time it was trendy, made the bike steer quicker at the loss of a bit of 'tip in' feel.
Most of us run a 120/70, which is pretty much the 'normal' size for road bikes. This will give better feel on the road, but it also lifts the front a bit so it steers a bit slower.
Check the manual, page 7-40, and see how your forks are set. If you have a 120/70 tyre, setting the forks to 30.5mm past the handlebar clamp will put the front back in standard position.
I have no trouble riding all the way to the edge of the rear tyre (and beyond!) without scraping anything using standard ride heights front and rear.

If there is a 120/70 series tyre fitted on the front , you’ll need to drop the front 12mm to compensate for the extra 10% of 120mm anyhow.
I purchased 500mm long 5mm thick 30mm wide flat alloy ( $15 ) and made 2 dog bones and simply drilled 2 holes to a desired length.
Dropping the front will help turn in, raising the rear will aid with understeer issues exiting that is if your rear spring rate suits your weight to start. 0.9 is the std spring on the rear so suits a 70kg rider.
With shorter dog bones will give more swingarm angle and aid with more antisquat when on the gas exiting corners. But the trade off is a little more instability on fast sweepers.

dicky wrote:You can download the service manual here... http://www.trx850.com/hosted/manual/trxmanual.pdf (11.3MB)
Check what size front tyre you have fitted.
Standard spec is a 120/60, which is a weird size and not so easy to get hold of these days.
They put it on as at the time it was trendy, made the bike steer quicker at the loss of a bit of 'tip in' feel.
Most of us run a 120/70, which is pretty much the 'normal' size for road bikes. This will give better feel on the road, but it also lifts the front a bit so it steers a bit slower.
Check the manual, page 7-40, and see how your forks are set. If you have a 120/70 tyre, setting the forks to 30.5mm past the handlebar clamp will put the front back in standard position.
I have no trouble riding all the way to the edge of the rear tyre (and beyond!) without scraping anything using standard ride heights front and rear.

Cheers for the link and advice about the tyre mucker