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125cc Zongshen "Stock/Mod" Race Conversion Motor (12.5 HP)

 

• This is our race conversion motor that we run on our stock/mod race bikes.

• 1 Down, 3 UP Transmission

• High output Inner Rotor Kit w/Stage 3 Hyper CDI

• High Performance Cam

• Custom ported head (OPBS Exclusive)

• Foldable Shift Lever, Kick Starter, Kill Switch and all Wiring Hardware.
  (We recommend the 26mm Mikuni carb. for this motor.)
  
  
  
  
  
  
  
  
  
  
  
  Price: $499
  

125cc YX "Stock/Mod" Race Conversion Motor (13.5 HP)

 

• This is our race conversion motor that we run on our stock/mod race bikes.

• 4 UP Transmission

• High output Inner Rotor Kit w/Stage 3 Hyper CDI

• High Performance Cam Shaft

• Custom ported head (OPBS Exclusive)

• Foldable Shift Lever, Kick Starter, Kill Switch and all Wiring Hardware.
  (We recommend the 26mm Mikuni carb. for this motor.)
  
  
  
  
  
  
  
  
  
  
  
  Price: $579
  

125cc Jialing "Stock/Mod" Race Conversion Motor (13.5 HP)

 

• Our Stock/Mod Conversion on the Jialing 125cc

• Start in any gear, 4 up transmission.

• High output Inner Rotor Kit w/Stage 3 Hyper CDI

• High Performance Cam

• Custom ported head (OPBS Exclusive)

• Foldable Shift Lever, Kick Starter, Kill Switch and all Wiring Hardware.
  (We recommend the 26mm Mikuni carb. for this motor.)
  
  
  
  
  Price: $629
  

140cc OPBS Competition "Race" Motor
(Complete Setup YX Motor)

• Our custom built 140cc race ready for competition. (15+HP)

• Custom Port & Polished 23mm/27m Large Valve Head!!

• Performance Cam Shaft

• Lightened Oil Slinger

•  Includes an Inner Rotor Kit w/ Hyper CDI Box, 26mm Mikuni Carb., Air Filter, Oil Cooler, Throttle Cable, Clutch Cable, Foldable Shift Lever, Kick Starter,  Kill Switch and all Wiring Hardware.

• Start in any gear, 4 up transmission.

• Mounts to any standard 125cc exhaust pipe
  
  
  
  
  Price: $829
  

146cc OPBS Competition "Race" Motor
(Complete Setup YX Motor)

• Our custom built 146cc race ready for competition. (15+HP)

• Custom Port & Polished 23mm/27m Large Valve Head!!

• Performance Cam Shaft

• Lightened Oil Slinger

•  Includes an Inner Rotor Kit w/ Hyper CDI Box, 26mm Mikuni Carb., Air Filter, Oil Cooler, Throttle Cable, Clutch Cable, Foldable Shift Lever, Kick Starter,  Kill Switch and all Wiring Hardware.

• Start in any gear, 4 up transmission.

• Mounts to any standard 125cc exhaust pipe
  
  
  
  
  Price: $849
  

160cc OPBS Custom Built "Race" Motor
(Jialing, Honda Style Motor)

• Our custom built 160cc race ready for competition. (16+HP)

• Ceramic Coated, Aluminum Cylinder

• Custom Port & Polished Lifan 23mm/27m Large Valve Head!!

• Performance Cam Shaft

• Lightened Oil Slinger

•  Includes an Inner Rotor Kit w/ Hyper CDI Box, 26mm Mikuni Carb., Air Filter, Oil Cooler, Throttle Cable, Clutch Cable, Foldable Shift Lever, Kick Starter,  Kill Switch and all Wiring Hardware.

• Start in any gear, 4 up transmission.

• Mounts to any standard 125cc exhaust pipe
  
  
  
  
  
  Price: $889
  

"Exclusive" OPBS Race Edition 150cc YX Motor
JUST RELEASED!!

• Our custom built 150cc race ready motor. (16+HP)

• Custom Worked Port & Polished Head

• Performance Cam Shaft

•  Includes an Inner Rotor Kit w/ Hyper CDI Box, 26mm Mikuni Carb., Air Filter, Oil Cooler, Throttle Cable, Clutch Cable, Foldable Shift Lever, Kick Starter,  Kill Switch and all Wiring Hardware.

• Completely assembled.

• Start in any gear, 4 up transmission.
  
  
  
  
  
  
  
  
  
  
  
  Price: $899
  

"Exclusive" OPBS Race Edition 170cc YX Motor
JUST RELEASED!!

• Our custom built 170cc race ready motor.(17+HP)

• Custom Worked Port & Polished Head

• Ceramic Coated, Aluminum Cylinder

• Performance Cam Shaft

•  Includes an Inner Rotor Kit w/ Hyper CDI Box, 26mm Mikuni Carb., Air Filter, Oil Cooler, Throttle Cable, Clutch Cable, Foldable Shift Lever, Kick Starter,  Kill Switch and all Wiring Hardware.

• Completely assembled.

• Start in any gear, 4 up transmission.
  (We recommend the OPBS Mikuni 26mm or Keihin 28mm carb. for this bad boy.)
  
  
  
  
  
  
  
  Price: $1099
  

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Toll Free: 866-475-5692
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Corporate Offices: The Fun Factory 5415 Acton Hwy / Ste 124  Granbury, Texas
 

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