Spears Racing has been part of the Small bike world for over a decade and has found their way around the factory “Commuter Bike Woes”. Spears Racing has been on the cutting edge of products to allow the Kawasaki Ninja 400 to be one of the favorite and front runners in most of the worlds lightweight racing fields.
Kawasaki’s new-in-2018 Ninja 400. This ride delivers the aggressive styling that you expect from the Ninja family with a host of improvements over the previous generation. More power, less weight and a mature presentation should hold the new Ninja in good in the highly-competitive small displacement sportbike market that serves as the main battlefield in the contest to instill some brand loyalty in the increasingly important “Lightweight Racing Class”
Even though the wheelbase has been shortened to 53.9-inches, the rectangular cross-section swingarm rocks a bit more length and helps reduce weight by connecting directly to the engine/transmission assembly to eliminate a few of the frame components. It seems to have helped some since the Kawasaki EX400 weighs almost 20-pounds less than the 300.
Front sprocket is drilled to lighten the mass and the rotational mass of the sprocket
***13t Only fits the Yamaha R3***
The spare gasket part number 92055-0888 Base GASKET “O” Ring is a genuine Kawasaki Part.
Fits 2018/current Ninja/Z 400/500cc
The Flash Tune ABS Delete Plus should be installed on any that has had the ABS system eliminated. This allows you to remove the ABS module and BPMV from the bike which save 1.55 lbs and frees up space under the air box. Installing a set of Spears Racing Brake Lines will replace the ABS OEM Brake Lines.
Magnetic Oil Drain Bolt Washer
A windshield takes wind, vibration, and constant pressure at the mounting points. Cheap or mixed hardware can mark the screen, work loose, or look unfinished. This kit is built as a complete screen-fastener set: high-tensile anodized aluminum screws, wellnuts, and anti-scratch washers so the fairing and windshield sit securely without chewing up the plastic. Plastic washers are included to protect the screen surface when you tighten the hardware.
These 20mm diameter pistons with oil passages increase adjustability in compression and rebound damping.
The complete cartridge with hydraulic adjustment and spring preload for original fork (OEM), developed by the Andreani Group, is equipped with a sophisticated hydraulic system that ensures the adjustment in compression, extension and preload of the spring, with adjustments placed directly on the upper cap of the cartridge in order to guarantee easy access to the set-up.
Antigravity SC-1 XPS lithium is the smallest battery in the Antigravity Batteries line-up, and the most compact Lithium motorsport battery available. Ideal for performance applications where you need extreme weight loss (weighs 15.50 oz.), space saving, and extreme power. 120 Cranking Amps, 6 Amp Hours (Pb Eq)
Let the Auto Tune Module upgrade for the Power Commander V deliver the kind of performance you can brag about. No matter what modifications you’ve made or the elevation you ride in, the Auto Tune Module is the accessory that brings it all together.
This is an FYI for all of the viewers, We recently received a Kawasaki Ninja 400cc engine to build, upon inspection of the engine we found a high leak down on the #2 cylinder, after removing the cylinder head we found a bad/bent valve.
Picture this: 6 laps into a 10 lap race and your front brakes are starting to fade, typically you will need to attempt to adjust your brake lever ,THE “Flip the Adjusting Lever” on your brake lever 
Installing the Bonamici Kawasaki Ninja 300/400/500 Remote Brake Adjuster kit with eliminate this issue.
Spears Racing is once again making the best products available to you as a “Bundle Kit” the Brembo Front Brake Bundle Kit will allow you to have the Brembo Brake power, feel and confidence over your OEM master cylinder and brake line.
They are very light and strong construction hand finished in our own molds with plain weave, constructed using a one-piece carbon sheet for a consistent weave pattern and reinforced with Kevlar. Hand-made carbon fiber, very light and useful and weighs only 70 g and is 5mm thick with a beautiful deep clear gloss shine and are sealed perfectly to keep out dirt and moisture
Chain Hook/Holder© by Spears Racing is to assist the race Team Mechanic, racer or rider once you have removed your rear tire/wheel assembly from your Bike.
This plug will allow you to remove your current turn signal housing assembly left handlebar assembly, and still maintain the Bike to run in the Proper ECU mapping.
Purchase the correct/proper chain for your motorcycle, not like others companies who are selling 120 link chains they are just telling you to get two (2) master links.
DID 415ERZ chain has a tensile strength of 4,540 lbs ( 1 lb. 15.7 oz./898.6g )
Why convert from 520 to 415
A 520 chain is heavier and larger than a race bike in this class needs. Moving to 415 cuts pitch size, chain mass, and usually sprocket mass with it. That is rotating weight at the countershaft and rear wheel. Extra rotating mass takes more energy to accelerate and throws away horsepower as friction. A 415 chain reduces that loss so more power reaches the ground and the bike picks up revs faster.
On Ninja 250/300/400/500 KTM 390 and R3 race bikes, a 415 conversion is one of the most effective ways to shed drivetrain weight. The smaller chain also packs tighter, which helps when you are building a dedicated track or Moto3-style machine. Pair the chain with a 415 conversion kit (sprockets and related hardware) for the full weight and friction benefit.
DID 415ERZ chain has a tensile strength of 4,540 lbs ( 1 lb. 15.7 oz./898.6g )
No products in the cart.
International Postal service disruptions
International Mail Service Suspensions
Updated: Oct. 1, 2021
The Postal Service™ is temporarily suspending international mail acceptance for certain destinations due to impacts related to the COVID-19 pandemic and other unrelated service disruptions.
Suspension Due to Unavailability of Transportation
| Afghanistan | Guadeloupe | New Zealand** | Tajikistan |
| Australia* | Laos | Reunion (Bourbon) | Timor-Leste |
| Bhutan | Libya | Saint Pierre and Miquelon (Miquelon) | Turkmenistan |
| Brunei | Martinique | Samoa | Yemen |
| Cuba | Mayotte | South Sudan | French Guiana |
| Mongolia | Syria |
Customers: please refrain from mailing items addressed to the countries listed here, until further notice.
These service disruptions affect Priority Mail Express International® (PMEI), Priority Mail International® (PMI), First-Class Mail International® (FCMI), First-Class Package International Service® (FCPIS®), International Priority Airmail® (IPA®), International Surface Air Lift® (ISAL®), and M-Bag® items.
*Australia’s service disruption affects Priority Mail International® (PMI), First-Class Package InternationalService® (FCPIS®), Commercial ePacket (CeP), International Priority Airmail® (IPA®) packets, InternationalPriority Airmail® (IPA®) M-Bags, International Surface Air Lift® (ISAL®) packets, International Surface Air Lift®(ISAL®) M-Bags, and Airmail M-Bags.
**New Zealand’s service disruption affects Priority Mail International® (PMI), First-Class Package International Service® (FCPIS®), Commercial ePacket (CeP), International Priority Airmail® (IPA®) packets, International Priority Airmail® (IPA®) M-Bags, International Surface Air Lift® (ISAL®) packets, International Surface Air Lift® (ISAL®) M-Bags, and Airmail M-Bags.
Unless otherwise noted, service suspensions to a particular country do not affect the delivery of military and diplomatic mail.
