Posts
466
Joined
3/25/2014
Location
West Palm Beach, FL
US
Edited Date/Time
8/25/2020 8:11pm
I know someone has done a swap to a newer Shock.
I the middle of doing a swingarm swap and looking at upgrading my shock.
I was told when I bought the bike it had a 09 YZ250F shock? It does have a 18mm shock shaft.
Does anyone know what years fit off either a newer YZ or YZF chassis? Looking at a couple A-kit shocks or a modded KYB
Bike already has a great a-kit fork done by Enzo
I the middle of doing a swingarm swap and looking at upgrading my shock.
I was told when I bought the bike it had a 09 YZ250F shock? It does have a 18mm shock shaft.
Does anyone know what years fit off either a newer YZ or YZF chassis? Looking at a couple A-kit shocks or a modded KYB
Bike already has a great a-kit fork done by Enzo
I can guarantee that 2010-2013 will bolt straight up no problem as that was the year of shock that I used on my ‘04 YZ build.
Any YZ shock from 2005-2020 will fit and if you’re looking at a YZF shock then you’ll need any shock from 2006-2013, all of those will bolt right up.
Obviously if you’re using a YZF shock then you’ll have to have it setup for the YZ and you’ll need to swap the spring collar from your YZ shock onto the YZF shock
Any 2 stroke YZ125 or YZ250 shock from 2005-2020 will fit no problems.
Any shock from a YZF from 2006-2013 will bolt right up but you’ll need to swap the spring collar from your YZ shock onto the YZF shock when using the later year ones (2009-2013 IIRC...) When Yamaha changed the engine orientation (2014+) that is when the shock also changed & wont work on the 2 strokes. As an added bonus any shock from a YZF from 2006-2008 will have a titanium spring :-)
Just remember have whatever you go with setup for the YZ and you’ll be good to go!
The Shop
2. Spring collar, easy swap bc they are different spring collar sizes. See pics below
If you didn’t change the spring on the shock to the YZ one then that would explain why you didn’t need to change the collar.
I just shot you a PM. Super important question so let me know if you don’t get it! Thanks mate 👍🏻😎👍🏻
So if you aren’t going to change springs then there is no reason to change the yzf collar to the Yz? No difference in length?
To add another wrench in...what if you have a yzf swimgarm on your yz?
When I fitted the 2 piece YZF shock to my steel frame YZ it lowered the rear ever so slightly.
Can’t comment on the YZF swingarm change though as I’ve never done it.
Pretty much the same but different spring height on body
Post a reply to: 04 YZ250 Two-stroke Build Shock Question