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06-12-2009, 01:46 PM | #31 |
rear= 4.10-18
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06-12-2009, 01:57 PM | #32 |
Join Date: Mar 2009
Location: Southeastern Washington desert
Posts: 14,761
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Won't help. The bikes that this will help are the Zongs which have a 15 inch wheel to start with. We don't need such a change. We already have the better sized (off road) wheel to begin with.
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06-12-2009, 02:01 PM | #33 | ||
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
The design of the Zongshen Sierra 200GY-2 made this entire process much easier for me, since the Zong's engine and frame are faithful copies of current, or recently produced, Yamaha motorcycles. Spud
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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06-12-2009, 05:33 PM | #34 |
Join Date: Apr 2009
Posts: 770
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Ok, having just gotten back from a wilderness run with my Hamna (Hsun type)200gy, and the brand new Zong I just got for my brother, I'll be putting up a comparo thread over the next few hours. One thing I can tell you right now, is that I can fully understand why Spud is pleased with his mods.
seer
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06-23-2009, 02:29 PM | #35 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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I now have rode my YamaZong XT200GY-2 over 1,000 miles since the swingarm conversion. The new suspension is superb. My traction has increased greatly with the Dunlop D752 rear tire. My motorcycle is now much lighter, and its handling is excellent. The improvement in my motorcycle's ride is remarkable.
Yesterday I went riding with my friend Andy and his sons; they rode three Japanese motorcycles. My YamaZong XT200GY-2 performed very well; it was a pleasure to ride. Spud
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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06-23-2009, 02:41 PM | #36 |
Join Date: Mar 2009
Location: Southeastern Washington desert
Posts: 14,761
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Nice pics Spud. God Bless the great American Northwest. What a great place to live and ride.
I did not get to go riding on my flight/trip to Boise this weekend but did some hiking and boating on Lucky Peak Lake. Looking at the winlderness, I missed my humble HSUN.
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06-23-2009, 03:06 PM | #37 |
Join Date: Mar 2009
Location: Southeastern Washington desert
Posts: 14,761
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Your friends have some neat old bikes!
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06-23-2009, 04:30 PM | #38 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
Spud
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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06-24-2009, 11:19 AM | #39 |
Join Date: May 2006
Location: Fredericton, NB, Canada
Posts: 1,744
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Very nice collection of old dirt bikes, makes the Zong look like cutting-edge technology!
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06-24-2009, 03:09 PM | #40 | ||
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
Quote:
I consider the Zong to be a very good value in stock form, fresh from the crate. However, the Yamaha XT225 swingarm conversion has greatly improved the bike’s performance and handling. Spud
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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06-25-2009, 02:02 PM | #41 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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I have weighed all the individual components I replaced during this Yamaha XT225 swingarm conversion; here are the results for two different rear wheels.
Swingarm Conversion Weight Reduction Figures Complete Yamaha XT225 Swingarm Included: Swingarm, chain slider, shock absorber linkage, and rear chain guard: Weight: 13 pounds Complete Zongshen 200GY-2 Swingarm Included: Swingarm, chain slider, brake rod, and rear chain guard. Weight: 15 pounds Here is a photograph of the top side of both swingarms. Here is a photograph of the bottom side of both swingarms. Complete Yamaha XT225 Rear Wheel with Cheng Shin 3.50-18 Tire Included: Rear hub, rim, spokes, bearings, sprocket, Cheng Shin 3.50-18 tire, inner tube, rim strip, rim lock, and rear hub brake assembly. Weight: 20 pounds Zongshen 200GY-2 Rear Wheel with Kingstone 130/90-15 Tire Included: Rear hub, rim, spokes, bearings, sprocket, cushion drive assembly, inner tube, rim strip, rear hub brake assembly, and a very worn Kingstone 130/90-15 dual sport tire. Weight: 27.5 pounds Here is a photograph of both rear wheels. Yamaha XT225 Shock Absorber Weight: 5 pounds Zongshen 200GY-2 Shock Absorber Weight: 8 pounds Here is a photograph of both shock absorbers. I did add about 0.5 pounds to the Zong's frame with the installation of the shock absorber lower mounting bracket. Total weight loss: 12 pounds, with 7.5 pounds lost at the rear wheel! Needless to say, this weight reduction, along with the greatly improved suspension and traction, has made a remarkable difference in the motorcycle’s performance. The bike feels much lighter, just pushing it around with the engine off. The bike also feels much lighter when I simply come to a stop, on pavement, and put my left foot down. In addition, the motorcycle handles much more nimbly. Before the swingarm conversion, I wrestled with the bike while riding the more technical sections of trails; frequently the Zong would not turn when I wanted to avoid obstacles. The bike now goes where I want it to go. The stock Zong engine, carburetor, and airbox are closely patterned after the same components currently on the 2009 Yamaha TW200 motorcycle. My YamaZong XT200GY-2 now completely has genuine 2007 Yamaha XT225 components from the swingarm bolt and upper shock mount rearward. Therefore, I can honestly say that my YamaZong XT200GY-2 does possess current technology. The only dated component on my motorcycle is the 2004 Hyosung GF125/1989 Suzuki GP125 front brake caliper, common on many Chinabikes; I don’t mind, since this front brake caliper does a very good job stopping my motorcycle. My purchase price and swingarm conversion costs for this motorcycle total $1,200, plus $238 shipping. After riding it over 12,000 miles, I still consider my Zongshen Sierra 200GY-2 an exceptional value. Spud
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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