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

TB Parts 88cc Big Bore Kit, Race Cam, 20mm Carb Kit
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

     Fits Honda xr/crf 50 (All Years) and z50 (12v, 1988-99)

     Includes the following:

- 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) (P0301TB or P0127TB)
- 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)

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).

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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