2Bros Parts

CRANKSHAFT BOTTOM KIT 03-04 CR125, WISECO WPC116B HONDA MX

$429.73

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Delivery to United States 5–8 business days

Spread the cost with Klarna

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Wiseco Crankshaft Bottom Kit WPC116B. Precision-trued to OEM specifications and factory assembled. Connecting rods are double-forged to maintain superior dimensional consistency through improved grain flow. Shot-peening eliminates residual stresses and smoothly blends the rod forging surfaces. Corrosion-resistant surface treatment. Top and bottom end rod bores case hardened to 58-62 RC to optimize bearing running surface. Crank pin bearing radial running clearance is optimized to ensure maximum performance. Precision honing ensures ultra-round bearing surface. Precision-engineered oiling slots maximize rod strength and bearing life. Double-drilled small ends provide the piston pin with extra lubrication and cooling, reducing distortion of top end due to thermal transfer from the piston. Silver-coated bronze phosphor thrust washers with dimpled design increase oil retention and reduce friction between rod and washer interface. Crank pin bearings are manufactured with the highest-quality hot-rolled steel case hardened to 58-62 RC. Caged needle roller bearings provide the highest possible RPM. Precision-machined crank webs. Crankshaft comes with top-end bearing, premium main bearings and a complete bottom end gasket set that includes all seals and gaskets needed to do the job.

Specifications
SKU
56-233.WI.B.CBK
Brand
Wiseco
Availability
In Stock (3)

Fitments (36)

MakeModelYear
HONDACR 1251990
HONDACR 1251991
HONDACR 1251992
HONDACR 1251993
HONDACR 1251994
HONDACR 1251995
HONDACR 1251996
HONDACR 1251997
HONDACR 1251998
HONDACR 1251999
HONDACR 1252000
HONDACR 1252001
HONDACR 1252002
HONDACR 1252003
HONDACR 1252004
HONDACR 1252005
HONDACR 1252006
HONDACR 1252007
HONDACR 125R1990
HONDACR 125R1991
HONDACR 125R1992
HONDACR 125R1993
HONDACR 125R1994
HONDACR 125R1995
HONDACR 125R1996
HONDACR 125R1997
HONDACR 125R1998
HONDACR 125R1999
HONDACR 125R2000
HONDACR 125R2001
HONDACR 125R2002
HONDACR 125R2003
HONDACR 125R2004
HONDACR 125R2005
HONDACR 125R2006
HONDACR 125R2007
General Product Group
Crankshafts & Parts
General Product Type
Crankshaft Bottom End Kits
Variant Id
250341
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wiseco Crankshaft Bottom Kit

This Wiseco Crankshaft Bottom Kit is designed for enhanced performance and durability. Each component is meticulously engineered to meet rigorous standards, ensuring optimal function for your motorcycle's engine.

Key Features:

  • Precision Truing: Crankshafts are precision-trued to OEM specifications and factory assembled for immediate use.
  • Double-Forged Connecting Rods: Connecting rods are double-forged to ensure superior dimensional consistency through improved grain flow, contributing to overall engine reliability.
  • Shot-Peening: This process eliminates residual stresses and smoothly blends the rod forging surfaces, enhancing fatigue life.
  • Corrosion Resistance: Features a corrosion-resistant surface treatment to protect against environmental degradation.
  • Case Hardened Bores: Top and bottom end rod bores are case hardened to 58-62 RC to optimize the running surface for bearings.
  • Optimized Bearing Clearance: Crank pin bearing radial running clearance is precisely optimized to ensure maximum performance and efficiency.
  • Precision Honing: Ensures an ultra-round bearing surface for smooth operation.
  • Engineered Oiling Slots: Precision-engineered oiling slots maximize rod strength and extend bearing life by ensuring adequate lubrication.
  • Double-Drilled Small Ends: Provide the piston pin with extra lubrication and cooling, effectively reducing distortion of the top end caused by thermal transfer from the piston.
  • Silver-Coated Thrust Washers: Silver-coated bronze phosphor thrust washers with a dimpled design increase oil retention and reduce friction between the rod and washer interface.
  • High-Quality Crank Pin Bearings: Manufactured with the highest-quality hot-rolled steel and case hardened to 58-62 RC for durability.
  • Caged Needle Roller Bearings: Provide the highest possible RPM capacity for high-performance applications.
  • Precision-Machined Webs: Crankshaft webs are precision-machined for balance and performance.
  • Complete Kit: Includes a top-end bearing, premium main bearings, and a complete bottom end gasket set with all necessary seals and gaskets for installation.
Before you buy

QUESTIONS? JUST ASK

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

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.

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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