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  • ACCESSORIES
    • Apparel​
    • Blud Racing Oils​
    • CNC Aluminum Start-Stop-Rain Switch's ​
    • Domino Throttle Assemblies
    • Fuel/Gas Caps​
    • Fuel Tank Grip/Protection
    • Fuel/Gas Tank Foam​
    • Lacomoto Race Body Work
    • Machined Adjustable Folding Levers​
    • Samco Cooling Hose Kits​
    • Tire Warmers
  • BIKES
    • Kawasaki EX400
    • Kawasaki Ninja 500
    • Yamaha YZFR3
    • Yamaha FZ 07 / MT07/YZF-R7​
    • Kawasaki EX250
    • Kawasaki EX300​
    • Suzuki SV650
    • KTM RC390​
    • Kawasaki ER/EX650​
    • Kawasaki Ninja ZX-4rr
  • BRAKES
    • Brake Systems​
    • Brembo Brake Calipers/Brake Pads​
    • Brembo Master Cylinders​
    • Brembo Brakes Rotors​
    • EBC​
    • Galfer Brakes
    • SBS Brake Components​
    • Ventilated Caliper Racing Pistons​
    • Vesrah Brake Components​
  • CHASSIS/DRIVE
    • 415 Lightweight Sprocket Kits​
    • 520 Lightweight Sprocket Kits​
    • Andreani​
    • Clutches​
    • KTM RC390 Lightweight Sprocket Kits​
    • Transmission Undercutting
    • Suspension Products​
    • Spears Slipper Clutches​
  • ELECTRONICS
    • CNC Aluminum Start-Stop-Rain Switch's
    • Lithium Batteries
    • ECU Flashing​
    • HealTech Electronics Ltd
  • ENGINE/PERFORMANCE
    • Air Intake System​
    • Blud Racing Oils​
    • Camshafts​
    • Carrillo Connecting Rods​
    • Ceramic Bearing​
    • Ceramic Transmission Bearings​
    • Cooling Kits​
    • Cylinder Head Gaskets​
    • Engine Components
    • Exhaust Systems​
    • Gaskets
    • Overbore Engine Kits
    • Piston Kits
    • Spears Slipper Clutches
  • HM QUICKSHIFTER
    • HM Quickshifter Accessories
    • M3 Dashboard
    • HM Quickshifter Downloads and Videos​
    • HM Quickshifter
    • Stand Alone Blipper Shifters
$0.00 0 Cart
  • ACCESSORIES
    • Apparel​
    • Blud Racing Oils​
    • CNC Aluminum Start-Stop-Rain Switch's ​
    • Domino Throttle Assemblies
    • Fuel/Gas Caps​
    • Fuel Tank Grip/Protection
    • Fuel/Gas Tank Foam​
    • Lacomoto Race Body Work
    • Machined Adjustable Folding Levers​
    • Samco Cooling Hose Kits​
    • Tire Warmers
  • BIKES
    • Kawasaki EX400
    • Kawasaki Ninja 500
    • Yamaha YZFR3
    • Yamaha FZ 07 / MT07/YZF-R7​
    • Kawasaki EX250
    • Kawasaki EX300​
    • Suzuki SV650
    • KTM RC390​
    • Kawasaki ER/EX650​
    • Kawasaki Ninja ZX-4rr
  • BRAKES
    • Brake Systems​
    • Brembo Brake Calipers/Brake Pads​
    • Brembo Master Cylinders​
    • Brembo Brakes Rotors​
    • EBC​
    • SBS Brake Components​
    • Ventilated Caliper Racing Pistons​
    • Vesrah Brake Components​
  • CHASSIS/DRIVE
    • 415 Lightweight Sprocket Kits​
    • 520 Lightweight Sprocket Kits​
    • Andreani​
    • Clutches​
    • KTM RC390 Lightweight Sprocket Kits​
    • Transmission Undercutting
    • Suspension Products​
    • Spears Slipper Clutches​
  • ELECTRONICS
    • CNC Aluminum Start-Stop-Rain Switch's
    • Lithium Batteries
    • ECU Flashing​
    • HealTech Electronics Ltd
  • ENGINE/PERFORMANCE
    • Air Intake System​
    • Blud Racing Oils​
    • Camshafts​
    • Carrillo Connecting Rods​
    • Ceramic Bearing​
    • Ceramic Transmission Bearings​
    • Cooling Kits​
    • Cylinder Head Gaskets​
    • Engine Components
    • Exhaust Systems​
    • Gaskets
    • Overbore Engine Kits
    • Piston Kits
    • Spears Slipper Clutches
  • HM QUICKSHIFTER
    • HM Quickshifter Accessories
    • M3 Dashboard
    • HM Quickshifter Downloads and Videos​
    • HM Quickshifter
    • Stand Alone Blipper Shifters

Tech Section/Product Support

Tech Articles:

  Cam Timing

  Cam-Chain-Wear

  Core-Fee

CP Rod Bolt Torque_Stretch

crankshaft Balancing

  cylinder-boring_honing

  Detonation-and-Pre-Ignition

  Engine-Break-In

  Engine-Building

Fuel-Wash

  Piston-to-Valve-Check

  Piston Cylinder Honing

Piston-ring-end-gap

  Rod Stretch

  Squish-Deck-Height

  Winterizing-your-Motorcycle

  Unsprung Weight

   How Sequential Gear Box Works VIDEO

Technical Service Bulletin 3rd_4th Slider

Product Assistance:

  SP05-1000-Install PG.1

  SP05-1000 Install PG 2

  Shorten SV 650 Shift-Arm

  SP19-5th Turn Throttle Install

  SP23-650 Cam-Chain-tensioners

  SP24_650-Stud-Kit-Install

  SP28-650sb-SV650

  SP01-300 drop in high comp Guidlines

  SP01-320 Guidlines with Information

  SP01-400 Guidlines with Information

  SP01-650K-Guidlines-with-Information

  SP01-FZ07-80mm-Guidelines

  SP01-FZ07 83mm

Dealer Application:

***Steps to fill out dealer application form***

Step 1: Click link “Spears Dealer distributor.pdf”
Step 2: At the top right-hand corner click “download” (arrow pointing down)
Step 3: Click Save
Step 4: Click “always open in Adobe Reader”
Step 5: Then click “Open”
Step 6: Fill out document then submit to email : [email protected]

   Spears Dealer_Distributor.pdf

   Spears Dealer Account For Promotion

 (209) 923-4684
 15253 S Inheritance Way
Manteca, California 95336 US

Working Hours

  • Monday 9am - 5pm
  • Tuesday 9am - 5pm
  • Wednesday 9am - 5pm
  • Thursday 9am - 5pm
  • Friday 9am - 5pm
  • Saturday CLOSED
  • Sunday CLOSED

Additional Links

  • Our Services
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  • Gift Cards
  • My Account
  • Dealer Account for Promotion

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TERMS AND CONDITIONS

 

Copyright 2025 © Spears Racing. Managed by Webganics

Service alerts

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.