BWS125/ZUMA125 Tile Blade Cylinder Set
BWS125/ZUMA125 Tile Blade Cylinder Set BWS125/ZUMA125 Tile Blade Cylinder Set BWS125/ZUMA125 Tile Blade Cylinder Set BWS125/ZUMA125 Tile Blade Cylinder Set BWS125/ZUMA125 Tile Blade Cylinder Set BWS125/ZUMA125 Tile Blade Cylinder Set
BWS125/ZUMA125 Tile Blade Cylinder Set BWS125/ZUMA125 Tile Blade Cylinder Set BWS125/ZUMA125 Tile Blade Cylinder Set BWS125/ZUMA125 Tile Blade Cylinder Set BWS125/ZUMA125 Tile Blade Cylinder Set BWS125/ZUMA125 Tile Blade Cylinder Set

BWS125/ZUMA125 Tile Blade Cylinder Set


Tilt-Cut Fins. Precise Bore. Built for BWS.

Designed for the Yamaha BWS 125 engine, this Tilt Blade Cylinder Kit features a tilt-cut cooling fin structure on the cylinder body, providing an expanded surface area for heat dissipation during engine operation. Available in four bore sizes — 59mm, 61mm, 63mm, and 65mm — to suit different rebuild and displacement configurations. Each kit is supplied with a matched piston, RIK piston rings, wrist pin, circlips, and a full gasket set for a complete, ready-to-assemble package. Select the bore size that matches your piston specification before ordering.

🔹 Highlights

  • Aluminium Cylinder with Tilt-Cut Fins — tilt-blade fin geometry increases surface area for improved heat dissipation during operation
  • Precision Bore Machining — inner bore diameter tolerance held to ±0.2mm across all four size options
  • Four Bore Sizes Available — 59 / 61 / 63 / 65mm; confirm piston and bore specification before ordering
  • RIK Piston Rings Included — Japanese-made RIK rings supplied for consistent sealing and durability
  • Complete Kit — includes cylinder, piston, RIK piston rings, wrist pin, circlips × 2, and full gasket set

✔ Product Specifications

  • Type: Tilt Blade Cylinder Kit
  • Bore Size: 59 / 61 / 63 / 65mm (inner diameter ±0.2mm)
  • Cylinder Height: 73mm
  • Cylinder Width: 135mm
  • Fitment: Yamaha BWS 125
  • Focus: Engine rebuild / displacement upgrade
  • Package Includes: Cylinder × 1, Piston × 1, RIK Piston Rings × 1 set, Wrist Pin × 1, Circlip × 2, Gasket Set × 1

🔧 Installation Notes

  • Confirm bore size matches your piston specification before installation
  • Measure piston diameter and select the correct bore size accordingly
  • Inspect all mating surfaces for cleanliness and flatness before assembly
  • Allow adequate engine break-in at low load before normal operation

Power You Can Trust.