2Bros Parts

PISTON KIT 05-07 YZF250 77.00, WOSSNER 8612DB 2-RING

£182.40
1

Wossner forged piston kit with a 77.01mm bore and two-ring design. Engineered for optimal combustion chamber heat transfer and uniform bearing surface under heat expansion, reducing localized pressure and piston collapse. Manufactured in Germany. Features: forged piston for superior strength, two-ring design for performance and durability, optimized heat transfer to cylinder walls, elliptical design for uniform bearing surface and even thrust load distribution. Specifications: Bore 77.01mm (+0.01mm oversize), standard size piston (PN# 8612DB), lock part number CW16, pin part number WP059, ring set part number 770XAS, displacement 249 cm³, stroke 53.6mm, clearance 0.04mm, Wossner compression ratio OEM, OEM compression ratio 12.50:1, dome volume -2.80 cm³, compression height 22.20mm. Weight 268g.

Specifications
SKU
56-W188.B.WO
Brand
Wossner
Availability
In Stock (1)

Fitments (46)

MakeModelYear
GAS-GASEC F 2502010
GAS-GASEC F 2502011
GAS-GASEC F 2502012
GAS-GASEC F 2502013
GAS-GASEC F 2502014
GAS-GASEC F 2502015
YAMAHAWR 250F2001
YAMAHAWR 250F2002
YAMAHAWR 250F2003
YAMAHAWR 250F2004
YAMAHAWR 250F2005
YAMAHAWR 250F2006
YAMAHAWR 250F2007
YAMAHAWR 250F2008
YAMAHAWR 250F2009
YAMAHAWR 250F2010
YAMAHAWR 250F2011
YAMAHAWR 250F2012
YAMAHAWR 250F2013
YAMAHAWRF 2502001
YAMAHAWRF 2502002
YAMAHAWRF 2502003
YAMAHAWRF 2502004
YAMAHAWRF 2502005
YAMAHAWRF 2502006
YAMAHAWRF 2502007
YAMAHAWRF 2502008
YAMAHAWRF 2502009
YAMAHAWRF 2502010
YAMAHAWRF 2502011
YAMAHAWRF 2502012
YAMAHAWRF 2502013
YAMAHAYZ 250F2001
YAMAHAYZ 250F2002
YAMAHAYZ 250F2003
YAMAHAYZ 250F2004
YAMAHAYZ 250F2005
YAMAHAYZ 250F2006
YAMAHAYZ 250F2007
YAMAHAYZF 2502001
YAMAHAYZF 2502002
YAMAHAYZF 2502003
YAMAHAYZF 2502004
YAMAHAYZF 2502005
YAMAHAYZF 2502006
YAMAHAYZF 2502007
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
77mm
Variant Id
254911
Shipping OptionsShown at checkout
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit 77.01mm - 2 Ring

Experience enhanced performance and durability with the Wossner Forged Piston Kit. This 2-ring piston is meticulously engineered for optimal combustion chamber heat transfer and uniform bearing surface under heat expansion, effectively reducing localized pressure and preventing piston collapse. Manufactured in Germany, this piston kit represents precision and long-lasting quality for your motorcycle engine.

Key Features:

  • Forged Piston: Offers superior strength and a robust design for demanding conditions.
  • Two-Ring Design: Engineered for optimal performance and increased durability.
  • Optimized Heat Transfer: Promotes efficient heat transfer to cylinder walls for consistent engine operation.
  • Elliptical Design: Ensures a uniform bearing surface and even thrust load distribution, reducing wear.
  • German Manufacturing: Built to high standards of precision and quality in Germany.

Specifications:

  • Bore Size: 77.01mm (0.01mm oversize)
  • Piston Part Number: 8612DB (Standard size)
  • Lock Ring Part Number: CW16
  • Pin Part Number: WP059
  • Ring Set Part Number: 770XAS
  • Engine Displacement: 249 cm³
  • Stroke: 53.6mm
  • Recommended Clearance: 0.04mm
  • Dome Volume: -2.80 cm³
  • Compression Height: 22.20mm
  • Wossner Compression Ratio: OEM
  • OEM Compression Ratio: 12.50:1
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