New Zongshen RX3 (ZS250GY-3) Dual Sport

[Jay In Milpitas]

Thanks for the starter system tutorial, Spud. As everyone else says, you are a treasure.

Reading it (I didn't watch the videos) I have to say I am seriously friggin' impressed with the design!

I have NEVER seen a roller sprag clutch that sturdy on such a little engine.

And the reduction gear fail-safe is simply brilliant!

I wish I knew who designed the engine, and I'm grateful to Zongshen for making it, and to CSC for bringing it here.

[rjmorel]

posted some pics of Yosemite trip ride report, rj

http://www.chinariders.net/showthrea...002#post200002

[SpudRider]

Originally Posted by rjmorel

posted some pics of Yosemite trip ride report, rj

http://www.chinariders.net/showthrea...002#post200002

Thanks for posting the great report, Rob. If anyone wants to see some photos of magnificent scenery, he should head over to that thread.

[SpudRider]

Originally Posted by Jay In Milpitas

Thanks for the starter system tutorial, Spud. As everyone else says, you are a treasure.

Reading it (I didn't watch the videos) I have to say I am seriously friggin' impressed with the design!

I have NEVER seen a roller sprag clutch that sturdy on such a little engine.

And the reduction gear fail-safe is simply brilliant!

I wish I knew who designed the engine, and I'm grateful to Zongshen for making it, and to CSC for bringing it here.

Thanks for the kind words, Jay. I'm hope you're not kidding me.

Indeed, the NC250 is a wonderful little engine. It well manufactured, beautifully designed, easy to work on, and elegant in its simplicity. You noticed the designers used the same roller sprag clutch employed in the Ducati 1098. Here is what Wikipedia says about that Ducati bike.

https://en.wikipedia.org/wiki/Ducati_1098

The 1098/1098 S makes a manufacturer claimed 160 hp (119 kW), 90.4 lb·ft (123 N·m) torque, and weighs 173 kg (381 lb). The 0-60 mph time is less than 3.0 seconds and top speed is estimated at 180 mph (290 km/h).[2] The 1098 R, with its larger displacement 1198 cc engine, makes a manufacturer claimed 180 hp (134 kW), 99.1 lb·ft (134 N·m) torque. All these figures give the 1098 the highest torque-to-weight ratio of any production sport bike ever made.

The evidence continues to support the fact that this engine is an Italian design, manufactured to high standards of quality by Zongshen. However, I don't know the name of the design firm.

Indeed, we are very lucky such a committed, reputable company as CSC decided to import this motorcycle to North America.

[kohburn]

Originally Posted by SpudRider

Indeed, the NC250 is a wonderful little engine.

The evidence continues to support the fact that this engine is an Italian design, manufactured to high standards of quality by Zongshen. However, I don't know the name of the design firm.

I'm really curious how the engine compares in weight and dimensions to the air cooled TT engine.

[SpudRider]

I have combined links for all the RX3, workshop manual tutorials into one thread. This thread is pinned to the top of the Zongshen RX3 forum.

http://www.chinariders.net/showthread.php?t=15630

[keithmaine]

Originally Posted by SpudRider

I have combined links for all the RX3, workshop manual tutorials into one thread. This thread is pinned to the top of the Zongshen RX3 forum.

http://www.chinariders.net/showthread.php?t=15630

I noticed that

[superdude]

Just announced.....2016 RX3's....Cant believe I was first one lucky enough to stumble upon it usually everyone is 4 steps ahead of me.

http://californiascooterco.com/blog/?p=19136

[RedSpruce]

The silver and new orange looks great!

[SpudRider]

If CSC tells us the names of the ships, I would enjoy watching the 2016 bikes sail down the Yangtze River, and travel across the big pond to Long Beach.

[SpudRider]

Ryan did a nice video for the CSC skid plate. Ryan is very polite and helpful every time I speak with him on the telephone; it's certainly nice to see him in a video.

[SpudRider]

If you are interested in having Dobeck Performance develop an EJK fuel controller for the Zongshen RX3, please read the following thread, and send an email to the Dobeck Performance.

http://www.chinariders.net/showthread.php?t=15565

[SpudRider]

Apparently they took the Zongshen RC3 bikes on a 10,000 kilometer test ride. Here is the video. There is a thread dedicated to the RC3 at the following link.

http://www.chinariders.net/showthread.php?t=15303

[SpudRider]

I'm confident the NC250 engine, by itself, is smaller. The NC250 engine is definitely smaller, and lighter, than the 196cc, Yamaha engine in my Zongshen ZS200GY-2. If you search this thread for posts by JimJr21, I believe he reported the weight of the NC250 engine.

[3banger]

So given that the frames of the RX3 are are steel I purchased a well known in the Motorcycling word ACF-50 Anti-Corrosion spray. Below is a bit of pipe, one piece was sprayed & the other left with the oil coating from the manufacturer. They were left in the elements for about 6 months. Bet you can't guess which was which...

I've been using the spray to hit areas of the bike after cleaning. Basically try to get into areas might collect dirt and moisture. Also with the little or spray straw I've given most of the little drain holes a quick squirt.