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Trail Bikes 88cc Big Bore Kit + 20mm Carburetor Kit + Race Cam Kit 12 Volt - Z50 / XR50 / CRF50 (Stock head)

TB Parts 88cc Big Bore Kit, Race Cam, 20mm Carb Kit 12 Volt
Z50 (88-99), XR50, CRF50 (All Years)
(Stock head)
Pricing: $249.95

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Trail Bikes 88cc Big Bore kit, 20mm Carburetor kit, and Race Cam Performance Kit (12v, 1988-99),/strong>

     -Honda Z50 1988-1999
     -Honda XR50 2000-2003
     -Honda CRF50 2004-2024
     -Honda XR70 1999-2003 (If you are running a 50 head)
     -Honda CRF70 2004-2013 (If you are running a 50 head)

     -Lightweight aluminum cylinder with steel sleeve (P0156TB)
     -Cast in mounts on cylinder for aftermarket skid plates
     -Oversized cooling fins on cylinder for efficient heat dissipation
     -High compression 52mm piston with rings, pin, & clips That fits in the stock OEM Honda head (P0190TB)
     -Head & Base gasket kit (P0203TB)
     -High performance race camshaft for stock head (P0189TB)
     -20mm Performance carb assembly. Includes: 20mm carb, (P0125TB) intake, heatstop, gaskets, mounting hardware/wrench, (P0263TB)
     -20mm angled dual foam air filter (P0398TB)
     -TB throttle cable (Choose Which Cable fits your throttle) (90 degree or Straight CR Style)
     -Main jet kit (K0294TB)

Easily double your horsepower and fun factor with this quality, yet affordable big bore kit!!

We recommend purchasing a high volume oil pump kit. (Doubles your oil flow) (FF0226TB)

Installation Note: It will save a lot of time and effort if the oil pump is installed while installing the bore kit (as oil pump installation requires cylinder removal).

If you have any questions please call one of our knowledgeable and friendly techs at 833-327-8507

Parts Included:



  • K0930TB
  • K0930TB
  • Trail Bikes
  • New


Shipping Information

  • Item Requires Shipping
  • 6.0 lbs.
  • W12.0000” x H12.0000” x L9.0000”

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