Cool looking at them on the IRC web site they have an NR77 that they list as there "RACE" tire  in an 80/90-14 Bike bandit has them for $25.00 . I'm not sure how good they would be but it might be worth a try if this oversized Diablo I bought doesn't work out.

slideleft, on 11 August 2012 - 04:42 PM, said:

That makes sense. You must have had to take off quite a bit of material since the hub assembly is 12-13mm wider than the forks when mounted in the KDX trees. I chose to alter the backing plate cause it's about $10 from eBay where the forks are $55 in the condition I have now.

Found the fork action is too quick with the fork oil that's in these now. Thinking about going to 20W, Suzuki says they use SHOWA SS-8 or equivalent SAE 10W; 172ml/173.0mm(6.81") from top for comparison.

ETA: new plan buy a quart of 15w?? (the oil will never get hot enough to matter what the second number is) and 20w50 from a major manufacturer. Service the forks with 15w?? to specified levels, after one or two practice sessions, suction the 15w?? out, replace with an equivalent amount of 20w50, run the last practice session. If this is the result I'm looking for, leave it alone and later replace with a similar viscosity fork oil. If it's too much, go back to the 15w?? and run the remainder of the event. There's roughly half an hour between each practice session, followed by 45 minutes or so for lunch. When the races start, there's only 20 minutes between getting off the track and getting lined up to get back on again, so the change would have to be made between practices or over lunch.

Edited by Smacaroni, 14 August 2012 - 06:18 AM.

This just got more fun , My rear axle is seized in and I've now destroyed it trying to take it out . and it's still stuck in ??  There are none on e-bay so I'm guessing this is common ?

I never had a problem with the rear axle, but the front on the other hand... It didn't seem "normal" when we needed to change the tire the first time. I must have spent 15 minutes twisting that thing with a wrench and alternately pounding on it with a hammer. When I got it out, it was a gentle "Z" shape. I ended up replacing it with another long 10mm bolt - an engine mounting bolt for a street bike. Took all the abuse we could throw at it till we swapped in the KX100 front end. It's currently taking abuse on my minGP bike. Suzuki should have used a 12mm bolt like Honda does on the XR100.
I don't remember what size the rear is, but I bet if you can find another bolt the same length and diameter, I bet you'll be fine. Now if it was an MX bike, I'd say buy a replacement from Suzuki.

Edited by Smacaroni, 15 August 2012 - 02:55 AM.

I think not much short of a chainsaw is going to get it out of there. Maybe I'll go gentle and use a saws all .

Pop the forks out, take one side and the wheel off, then go to town on the bolt and if you have to, press/drill it out. That should minimize the amount of damage the sawzall does.

ETA: I'm an idiot - forgot this was the swingarm. Sawzall it is.

Further ETA: why can't I realize the dumb thing I just typed before I hit submit instead of a second after?

Edited by Smacaroni, 15 August 2012 - 04:17 AM.

Do your best not to damage the hub,klx rear hubs are not easy to find used and i had one on backorder for two years the never showed.

I got it out last nigh with a combination of impact gun on one end and a big hammer on the other . The axle was very rusty and bent on the sprocket side. Serious junk part I think. The Hub looked good and the bearings came out just fine with some light pounding

Here was todays fix for Suzuki's junk DRZ125 rear axle parts .



A one foot long piece of 12mm 4140 cromoly ground shafting.
Some new SKF bearings made in Italy as opposed to that other place the bearings come from.
and some new spacers made of some better materials.
Now if I wouldn't have bought that brand new Pirelli Diablo in a 14" I would have been able to just toss the whole stock swing arm and wheel in the trash and start over with my KX100 swinger and 17" rim  

Edited by BruceD_500, 16 August 2012 - 05:04 PM.

You could try selling that 14" tire on CL before the weather turns cold. Chalk it up to "it was a good idea at the time."

Too far in to sell it now . In the end the Pirelli Diablo and the Michelin Gazell don't look that bad on it. The Diablo profile is a bit squashed but we'll see once I get it on a track .

Edited by BruceD_500, 18 August 2012 - 12:51 PM.

That tire profile doesn't look too bad actually. Just make sure you take the first couple laps real easy to scrub off the mold release. From there, have fun doing all the things that would get you arrested on public roads.

Always thought that michelin would be good out on the clay,ya know short track. Let us know how that sticks. Spent sunday on tar on a worn set of maxxis drt cd-2 tires once the got warm they was nice and sticky !

BruceD_500, on 18 August 2012 - 12:50 PM, said:

WAIT A SECOND! You almost pulled off the ultimate con. I see now there's no head on the motor and the carb is dangling by the throttle cable.

You almost got me, I was too busy looking at that turbo. Almost.

slideleft, on 20 August 2012 - 01:20 PM, said:

That's the second one of those tires I've got the first is on my YZ80 I've used it on concrete and a bit of grass/dirt it seems to work just fine. I've lost the rear a few times but never the front. It's a bit narrow but that depends a bit on what rim you want to put it on . They're cheap enough.  

Smacaroni, on 20 August 2012 - 01:23 PM, said:

Yea been having some trouble getting that 100cc motor to run properly even when the turbo isn't hooked up . So while I'm waiting on gaskets I moved on to the tires. Now back to the engine . Has anyone got a spare DR100 head they want to sell ?

Edited by BruceD_500, 20 August 2012 - 03:17 PM.