Hi, i am searching for a replacement of my rear suspension. Is there a road legal (EU) alternative than the original one, or do i need to find a good old one? What is the original supplier? Do you have some experiences? Thank you! regards, Spark
(200.1.05) ME302-300T-07-85 - standard application (suspension-store.com) M62012 REAR SHOCK ABSORBER HAGON YAMAHA 250 FZR250R (3LN) 1990-1990 (wrs.it) Pinned - FZR R6R rear shock conversion | 2FIFTYCC.COM - Home of the Quarter Litre
You can use a YSS MZ366 Monoshock to suit TZR250 3MA model. Only required change is top bushing from 40mm to 38mm. Ask the retailer/builder to do it for you. Everything else is the same.
I've replaced the shocks on 2 chassis just recently using later model R6 shocks. I think one is 2006-2007 and the other was a 2012. It wasn't a straight bolt in but not too difficult either. The R6 shocks are 10mm shorter which necessitated 10mm shorter dogbones to maintain ride height. The top mount is a bit narrower and required 2 spacers which was actually an improvement over the stock setup. My dogbones were made using slightly thinner material than the stock dogbones so a washer was required for each dogbone bolt to ensure that the dogbones were clamped tight on the pivot bushes. In my opinion the spring rate is wrong for the 250. On one shock I fitted a 7kg/mm spring but that is on a very light bike. the other bike which is close to stock weight I reduced the preload from about 10mm to only 1mm. Others have not changed the springs and have no complaint.
Thank you for your replies. Would you prefer YSS oder Hagon? Currently i requested to rebuild the old one, it seems to be possible. The question is if it is worth...
I haven't used a Hagon shock so I can't speak as to how they are. I used a replacement YSS shock on my Bandit GSF250VY and it was perfectly matched to the original in terms of a replacement. The spring, spring rate and damping settings were all perfectly matched to the freshly overhauled front forks. The FZR250 one is a bit different, as I opted for a softer spring (for 70-75kg rider instead of 75-90kg), then I've added more preload on it and adjusted the rebound damping, to match the front forks which were overhauled with FZR400 springs and emulator valves. If you want to use an R6R shock, best bet is to get one cheap and overhaul it to match your front suspension (or overhaul both front and rear to match rider weight), including replacement spring and valving adjustments.
I asked on an R6 racing FB page and was offered 2 shocks seperately, both only asking NZ$100ea. There is probably similar pages in other locations. Unfortunately I had already bought 2 shocks out of the USA which were on their way. They cost about NZ$220ea including freight
