mcman56

Mr Dan W Do you know the thread size? it looks sort of 4 mm size

Maybe there is a transplant list for things like that but I'm interested in the metal kind.

Does anyone make a longer rear brake bleed nipple? Does anyone know the thread size? I'm serving time in brake bleed purgatory and the hex on the small nipple part is starting to get damaged. It is very short so installing a good wrench and hose is challenging. It would be nice to get a secure connection for the hose so it will stay on when pushing fluid with a syringe.

These are marked Goldfren S33 on the back. They have a bright gold/ copper color backing plate that I noticed on the 2017 bike I tried. Full evaluation is pending. http://shop.americanbeta.com/p/jitsie-race-pads/trial_beta-2-stroke_chassis_controls?pp=12

I believe that is what the State of California calls a non conforming VIN. The DMV will not find it on their computer so they do not know what it is. Some or all newer Gas Gas bikes also come with a non conforming VIN. The dealer provides new VINs which you see as a blue add on plate. I managed to get a Mecha Techno 80 registered some time ago by getting the highway patrol to verity the non conforming VIN and the registration said Make Unknown, year 00/00/00. At the time, I was told that the flood of Chinese bikes was triggering a continued tightening of regulations. I assume this puts the DMV in a situation where there are no perfectly clear guidelines. I have heard some DMV offices are easier to work with than others but do not have one to recommend. Some say more rural offices are better. I would be interested in hearing how it works out for you.

I had a Fantic 80 with a swingarm pivot shaft that would not come out. I tried heat and anti rust solvents but in the end had to resort to a hydraulic press. As I remember the pivot inner races had rusted to the shaft. The rest of the bike was rust free.

I run X ring chains and they last forever. They are not as wide as o-ring. V-mar makes a nice wide chain guide. A little trimming can make a standard guide work also. On my Rev 3, I had to put the master link clip towards the inside to avoid it touching the brake pedal http://www.vmar.com/chain-guide.html

Galfer pads feel the same. The Jitsie race pads are marked Goldfren on the back. I tried putting putting a 2008 Rev 3 rear wheel on my Evo. The disk is a little bigger, 3/16" or maybe 1/4" bigger in diameter. I could get the axle in but the disk drags on the caliper. I could not see if the Evo pads could take advantage of the larger disk. See the comparison pictures. Rev 3 pad also have more area.

DS80. Newer models are called JR80. They have a solid reliability reputation. http://www.suzukicycles.org/DS-series/DS80.shtml

Dan - Are you saying the jump comes after the throttle burst? I'm trying to do it at the same time. Actually, I'm trying to compress the front wheel on the obstacle, hit the throttle and jump all at the seem time. Although, there are a number of things that have to happen in a short time period so what I'm actually doing may be somewhat different.

I see that some riders can get a very quick almost explosive jump up from the pegs when unloading. When I attempt, it feels kind of slow and mostly like I'm compressing the rear suspension rather than pushing my body up quickly. Does this imply that my timing is off...maybe too early? I get some lift but not as much as I would like. I'm 155 lbs if that makes a difference.

Beta USA does list a 2017 improvement as: New rear brake pump: provides a more powerful yet progressive rear brake feel. Did they change bore size or just brands?

Who sells Goldfren S33 and is in or ships to the US?

Fluid has been flushed and pads are new. Original pads felt the same. A friend with a 2016 beta has the same rear disk and also complains the brake is weaker than his gas gas

I have a 2014 factory model beta. The rear brake has always seemed weak. I got a ride today on a 2017 factory model and the brake felt much much better....much stronger yet just as easy to control. Visually, the main difference is the NG brake disk which has less cut out area so more friction area. Has anyone tried installing the NG disk on a 2014 or anything else to improve brake power? The other difference I noticed was that the metal backing plate of the pads was sort of a bright brass colour. Mine are sort of a dull colour. I think they mine are the Jitsi race pads but the originals felt much the same.

My seat of the pants guess or maybe soles of the boots guess is that trials bikes max out around 6000 rpm, maybe less. That is why they feel "softer" with lower gearing...if it gets away from you, it runs out of rpms fairly quickly.

The sprocket spacer is 0.326 inches. It has a step to center on the wheel and another step to center the sprocket. Extra wheel spacer on the sprocket side is 0.233". The disk spacer is 0.198". It has a counter bore on the wheel side because the GG wheel has a little step on that side. Extra wheel spacer on the disk side is 0.147".

Do you just want thickness or detailed drawings?

I answered my own question. The GG wheel can fit a Beta but it takes 4 spacers, disk spacer, sprocket spacer plus right and left wheel spacers. This is an '04 or so GG wheel on a 2008 Rev3. My 2014 Beta wheel looks the same as the Rev3 but the Rev3 has a bit of a floating disk. The GG disk locates on a lip on the hub where the Beta disk does not use the locating lip but I guess it could have been included..

Will a Rev 3 rear wheel fit an Evo? On the same note, will a rev 3 brake pedal fit an evo. The late model evo has a short pedal which decreases leverage. Maybe I dould start another about the brake pedal.

Can you fit 2004 Gas Gas wheels to a 2016 Beta? (A friend wants to use them as spares.) After taking some basic measurements on the rear wheels, it looks possible but would require sprocket and brake disk spacers plus wheel spaces so it doesn't look very practical. Has anyone does this?

I have heard one like that and it was bad main bearings from swallowing dirt. You could see if there is up and down play in the flywheel.

The general term is T Nut or T Slot Nut. They are used on machine tool tables. The term T Nut also applies to other similar looking nuts.

re there good sources for parts in the US? Specifically looking for parts like the OEM countershaft circlip and spacer from Honda as seen here at Trail and Trials UK. for when I run the smaller counter shaft sprocket. As I remember OEM front sprocket had some kind of bolt on retainer but could use a clip. Spacer like the one on the link can be made from the OEM retainer but if you can buy them so much the better. Bikebandit still had the retainer and some other OEM parts from Honda. A friend has a Reflex with oring chain and runs a 10 tooth with pvc spacer to keep the chain from sawing into the cases. A couple of spacers like on the link would be better. Talon made a 9 tooth but I don't know where you would find one. I ran 9/ 44 for trials and it was OK. You will want rim locks even thought the bike has little power. Even with on rear rim lock, I once spun the tire enough to tear the tube.

I'm asking about the top hat style steel plates. The extended lip fits inside a fiber plate but I don't understand the advantage. See pictures in link below. Mine has two plates like that but there should be three. The insert image function is not working for me. Your link did not work for me either but I think I have that document. http://s103.photobucket.com/user/mcman56/media/IMG_04271_zpslntivgzm.jpg.html?filters[user]=24355982&filters[recent]=1&sort=1&o=1 http://s103.photobucket.com/user/mcman56/media/IMG_04301_zpsmq5nilp5.jpg.html?filters[user]=24355982&filters[recent]=1&sort=1&o=0