Axle blocks, Shift Lever and Hubs will have to be RM125 specific (axle blocks and hubs can be RM250) Suzuki have used the same oil plug in all their bikes for years, I use the same Zeta Oil Filler plug in my 1989 RM250, 2008 RM250 and 2015 RMZ450... ... more »

Brilliant thanks. I may already have a set sorted but its good to have options. Already have an 89 set, but cant get springs for my weight for them. I also have a set of 91 forks too, but they are very old and tatty, would rather put time and testing ... more »

Interested in the radiators, how much are you looking to get for them?

If you aren't currently using the correct metal/rubber washer then I expect this is where your problem is. So try this first before doing anything else.

Cant say for the RM125, but I've fitted a 91 Fork/Triple clamps, 90 pipe (with home made brackets), 97 Keihin carb and even a 91 barrel and head to our 1989 RM250. It's likely that newer model parts will fit, but often a case of trial and error with ... more »

I went ahead and dropped a 0.45 spring into one of the forks. Once my fork oil turns up I will drop in 335cc's into each and then re measure the sag to see what change the softer spring rate has had. I will try lowering the fork oil if its still too ... more »

Thanks for all the help guys. So can I rightly assume that the 0.48 fork springs aren't the issue? Seems hard to believe the valving is what's holding the forks so high, even at full soft? I do have a set of 0.45 springs for these forks, so may fit 1, ... more »

Yes sorry, I should have said. Both forks and shock were set up and re-valved for me at SPS Racing here in the UK. Could well be a valving issue but I would like to try and figure things out a little more myself before sending back for alterations.

Had a mate record some footage from the last outing. Rear end appears to be doing a lot more than the front? https://www.youtube.com/watch?v=R8JkekBFhkY

Just as mxb2 said. You've got the main other areas covered with the Rekluse clutch and Loudmouth intake. You could re do the crank breather if you wanted. I've got mine so its just the 1 fat tube, doing a 180 out the outlet and back to the rear shock. ... more »

The mind, as it can over come any physical disadvantage (within reason) Looking back over motocross history there have been successful riders of all shapes and sizes. Watching Carmichael and Pastrana race together was a fine example. Albeit brief, but ... more »

I'll get you a set made over the next week or 2

I've used that exact model shock on my RM250 before and loved it. Noticeable improvement over stock. Use the compression and rebound adjusters up top as normal, but this shock also features a 'Chassis Stability Control' adjuster at the bottom (where ... more »

Most suspension shops will advise suspension servicing every 20 hours on your fork and shock to keep them in tip top condition. At the very minimum suspension should be rebuilt every 40 hours or once a year (depending on what comes first) From the sounds ... more »

I've removed mine from my 15 RMZ450 as I didn't feel it made any improvement to my starts what so ever! Remove the tank, then remove the launch control button and wire. Unplug it where it joins to the rest of the loom. I then sealed up the plug end at ... more »

I saved a fair bit of weight from my 450 using various different techniques, see the build thread below: https://www.vitalmx.com/forums/Bike-Builds,46/2015-Suzuki-RMZ450-Proper-Build,1312131 I've personally used the 26'' fat bike inner tube before successfully ... more »

Another vote for DT-1 from me. Very good quality filter and very well made. I always use a DT-1 for longer Enduro races, or any track that is notoriously dusty. As above, they seal on the airbox better than any other filter IMO