2Bros Parts

PISTON KIT 07-08 YZR-R1 77.00, WISECO 4986M07700 ROAD YAMAHA

$255.25

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Delivery to United States 5–8 business days

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WISECO 4986M07700 PISTON KIT 77.00mm bore. Comp 13.5:1. Forged and machined in the USA. Features light weight forgings, millimeter ring packs, extra-strength forgings, gas ports, optimized skirt profiles, skirt coatings, offset pins. Includes Nitride Steel top and Napier 2nd XX ring packs. Displacement: 998cc. Bore - Standard: 77.00mm. Bore - Actual: 77.00mm. Bore - Oversize: STD. Stroke: 53.60mm. Cylinders: 4. Cyl. Type: 13.5:1. Ring Set 3032XG. Sold each.

Specifications
SKU
56-W9736.7700
Brand
Wiseco
Availability
In Stock (4)
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
77.00mm
Variant Id
258591
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wiseco 4986M07700 Piston Kit - 77.00mm Bore

Upgrade your motorcycle's performance with this high-quality piston kit from Wiseco. Engineered for durability and power, this kit is designed to meet the demands of high-performance riding.

Key Features:

  • Bore Size: 77.00mm (Standard)
  • Compression Ratio: 13.5:1
  • Forged and Machined in the USA: Ensures premium quality and precision.
  • Lightweight Forgings: Contributes to optimized engine performance.
  • Millimeter Ring Packs: Provides superior sealing and durability.
  • Extra-Strength Forgings: Built to withstand high stress and temperatures.
  • Gas Ports: Enhances ring seal and reduces blow-by.
  • Optimized Skirt Profiles: Reduces friction and improves performance.
  • Skirt Coatings: Further reduces friction and improves wear resistance.
  • Offset Pins: Can improve noise reduction and durability.
  • Nitride Steel Top and Napier 2nd XX Ring Packs: Delivers ultimate sealing and longevity for sport compact applications.
  • Included Ring Set: 3032XG

Specifications:

  • Displacement: 998cc
  • Bore - Standard: 77.00mm
  • Bore - Actual: 77.00mm
  • Bore - Oversize: STD
  • Stroke: 53.60mm
  • Cylinders: 4
  • Cylinder Type: 13.5:1

This piston kit is sold individually (each).

Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Call or email us with your make, model and year and we will check it for you before you order.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. 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

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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