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TBParts - 141cc Big bore kit w/ VM26 Kit
14mm Pin
GPX Pitster Lifan Piranha

Vital Information
Part No TBW9070
Stock Level 6 Left

141cc High Compression Bore Kit - 120cc / 138cc Engines

OD of cylinder skirt is 59mm

Meets or Exceeds OEM Specifications.

Key Features:

  • Lightweight all aluminum cylinder with steel liner
  • Cast in mounts on cylinder for aftermarket skid plates
  • Oversized cooling fins on cylinder for efficient heat dissipation
  • High compression 57mm piston with rings, pin, & clips (14mm wrist pin)
  • Head and Base gasket kit
  • VM26 Mikuni carb kit

  • SDG Pro mini
  • Other Pitbikes and engines with 52.4 x 55mm engines with 14mm wrist pin

This will make a huge difference in performance over your stock setup and is a very quick and easy upgrade.

NEW Bigger dome piston, for use with Lifan 27mm/23mm Heads


  • Sta-bil fuel stabilizer - W-57-1109
  • Uni filter oil spray - W-82-1000

Kit Includes:

  • TBW0601 - Cylinder
  • TBW0424 - Gasket set
  • TBW0824 - Piston
  • TBW0301 - Throttle cable
  • TBW0433 - Intake kit
  • TBW0399 - VM26 carb
  • TBW0413 - Air filter

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Since 2004, every purchase from TBolt USA includes access to technical support from our staff of experts and our online Pit Bike Technical Info Database!

We have all necessary support parts on hand.

Most orders ship same, or next business day, unless otherwise noted above.