2Bros Parts

TOP END PISTON KIT 81-84 HONDA ATC R 250 70.5mm 0.5mm OVER VINTCO KTH21-0.5

£205.42

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VintCo KTH21-0.5 is a top-end piston kit featuring a 70.5 mm nominal bore size and a +0.5 mm oversize piston. The kit includes a forged, MOS2-coated piston, rings, pin, clips, top-end bearing, and a full gasket set comprising head, base, intake, and exhaust pipe gaskets. Manufactured in Germany, this kit utilizes modern materials for fitment and performance comparable to OEM. Specifications include a 70.44 mm piston diameter, 0.06 mm piston clearance, and VintCo part number KTH21-0.5. OEM cross-reference part numbers for gaskets are 12254-961-010 (head), 12191-961-306 (base), 14132-KAE-000 and 14133-430-306 (intake), and 18291-961-306 (exhaust pipe). Other size options are available.

Specifications
SKU
VIN-KTH21-0.5
Brand
Vintco
Availability
Out of Stock

Fitments (4)

MakeModelYear
HONDAATC R 2501981
HONDAATC R 2501982
HONDAATC R 2501983
HONDAATC R 2501984
SKU
VIN-KTH21-0.5
Brand
Vintco
Availability
Out of Stock
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

VintCo Top End Piston Kit - 70.5mm 0.5mm Oversize

Restore the performance of your motorcycle's engine with this comprehensive VintCo Top End Piston Kit. Designed as a complete rebuild package, this kit ensures you have all the necessary components for a successful top-end overhaul. Manufactured using modern materials and advanced production methods, this kit provides OEM-comparable fitment and performance, bringing your engine back to its optimal running condition.

Key Features:

  • Complete top-end rebuild kit for a full engine overhaul.
  • Includes piston, rings, pin, and clips for a ready-to-install assembly.
  • Comes with a top-end bearing, also known as a wrist pin bearing.
  • Features a full top-end gasket set for a perfect seal.
  • Specific gaskets included: head gasket, base gasket, intake gaskets, and exhaust pipe gasket.
  • The piston is coated with MOS2 to aid in the running-in process, promoting longevity and smooth operation.
  • Constructed from forged aluminum for superior strength and durability.
  • Piston clearance is precisely set at 0.06 mm for optimal performance.
  • Kit offers a significant cost saving compared to purchasing individual components.
  • Available in additional size options to meet specific engine requirements.
  • Manufactured in Germany, ensuring high-quality engineering and production standards.

Specifications:

  • Product Type: Top End Piston Kit
  • Nominal Bore Size: 70.5 mm
  • Piston Diameter: 70.44 mm
  • Oversize: +0.5 mm
  • Piston Coating: MOS2
Before you buy

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Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

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