Ceramic Bearing Transmission Kit: This is a set of 2 ceramic transmission bearings for the Kawasaki EX400. It will allow your engine to have approximately 3 times less the normal coefficient of friction, and are 60% lighter than the steel OEM bearings. This style of bearing has been used in AMA factory bikes for the past several years. 


 SP09-400                                     Available soon


Spears Racing Titanium Caliper Bolts: Our 'Race Spec' bolts are machined pre-drilled (1.6mm) on all flats to allow for ease of lock wiring - by reducing the socket size, scooping out the head and pre drilling our bolts they are 45% lighter than steel equivalents Produced in Grade 5, 6AL-4V Titanium providing strength and corrosion resistance.  (Set of (2) Two) 

     SP400-Caliper Bolts                         Available soon                                                      $30.00/set

MWR Full Race airfilter: The filter is developed on the track , NOT on a dyno but in real life. No different fuel-mappings between cylinders are needed.  It makes the bike stronger but smoother. 
Caution : The Full Race airfilter protects for 100% but for a short period of time , check after each race weekend your filter.Make sure you start each race weekend with a well oiled filter .   

​                SP02-400                                                                                                                    $89.99/ea

Rev2 Throttle:New ultra compact housing with snap-together elbows make it easy to install and change reels, Sleek new design requires less handlebar space for lever clearance and throttle position use smaller reels for slower throttle rate and larger reels for faster throttle rate Included cam reel provides progressive throttle response preferred by some riders. Unique reel design allows fast reel changes Cable boot keeps dirt and dust out for reliable and smooth operation Billet aluminum in-line cable adjusters for easy installation and adjustment

     SP19-400                                     Available soon

Spears Racing Billet Fuel Cap:Quick Release Fuel Gas Caps are for the (2013/2016 These caps are machines to the tolerances set by Spears Racing and made from 6061 Aluminum,each with there own sealing "O" ring and mounting hardware. Available in Black  (Finished with Anodize Coating) and has the Spears Racing Logo Laser Etched.​  Used in FIM WSS300

    SP400 Fuel Cap                            Available soon                                                           $89.99/ea

Spears Racing Pressure Radiator Cap: This is  the simplest and most inexpensive way to reduce your  motorcycle from boiling over. 
 The High Pressure Radiator cap raises your cooling system’s maximum operating  pressure and therefore raises the boiling point of your coolant. This is a perfect  upgrade for most motorcycle radiators with stock 1.1 caps.Higher pressure radiator cap increases the boiling point of your coolant to reduce  boil over problems on your motorcycle.Raises the boiling point by 25 degrees when going from a stock 1.1 kg/cm2 (15.7  psi) radiator cap to the 1.6 kg/cm2 (22.8 psi) radiator cap.
     SP Radiator Cap                                                                                                                $29.99/ea 

Spears Racing High Compression Head Gasket: This gasket is custom made to Spears Racing Specifications it will increase your stock Compression to allow better off the corner power (Per FIM Supersport300 Rules) and increase your RWHP.The thickness is made thinner than original gasket to get more powerful racing.This cylinder head gasket is for racing purpose only.
                                                                            ***Used In FIM WSS300***


  SP15-400                                     Available soon

Carrillo "H" Beam Rods: Fatigue is the major cause of connecting rod failure. At Carrillo Industries, they use proprietary steel,

manufactured and forged to their own custom specifications.These connecting rods are fully machined to guarantee the removal of all surface   imperfections in the forging. After heat treatment, each connecting rod is 100% magnaflux inspected and hardness checked, then   machined to final size. Each set of rods is balanced and then shot peened to achieve the ultimate in strength and fatigue properties  
    SP07-400                                     Available soon

Spears Heavy Duty Detent Spring :This spring will allow a quicker and easier way of shifting, perfect for track use and road riding for   effortless downshifts into a corner. Missed shifts virtually disappear! And the speed at which the gears actually engage is dramatically improved. The spring will give you more confidence and has been race track proven by several AFM, CCS, WERA and WSMC racers.
                                                                            ***Used In FIM WSS300***


  SP13-400                                     Available soon

Spears Racing Titanium Complete Kit: This is a kit of the above 4 items (22 Pieces), this is a must for any racer or those who simply wish to replace rusty originals! A replica of manufacturers original design but in superior quality material. Our Titanium 6AL-4V (grade 5) bolts are highly corrosion resistant, extremely light (40% weight saving!) and with rolled threads offers excellent strength and quality.

      SP400 Titanium Kit                    Available soon                                                           $189.99/set

Dyno Jet Power commander: PCV is less than half of the size of PCIII,USB powered from computer, 2 position map switching function built in (map switch not included),Gear/Speed input (allows for map adjustment based on gear and speed), Unit has a -100/+250% fuel change range (up from -100/+100%). This allows more adjustment range,10 throttle position columns (up from 9 on PCIIIusb).This is backed by free telephone support to Spears customers. 

   SP05-400                                     Available soon

Emission Block off plates:Spears Racing Smog Block Off Plates for Kawasaki EX400 model. Spears Racing Smog Block Off Plates are designed to seal off the ports on the valve cover used by the air injection system (a.k.a smog pumps or AIS). The air induction system (AIS) burns unburned exhaust gases by injecting fresh air (secondary air) into the exhaust port, reducing the emission of hydrocarbons. Once these are capped off the air injection system can be safely removed. These Smog Block Off Plates are CNC'ed billet aluminum and feature the Spears Racing logo. 
    SP06-400                                     Available soon

Ceramic Wheel Bearings: The ceramic balls in these hybrid bearings are over 60% lighter than their steel counterparts resulting in faster acceleration and reduced inertial loads.Low Friction-Less Vibration the coefficient of friction for the ceramic balls is an average of 3x's lower than steel. When you combine this with the high tolerances for roundness you get a bearing that dramatically lowers vibration levels and produces more horsepower. (set is front and rear rims) the kits can be purchased separately  or as one complete kit.                                                                                Front Bearings $100.00                 Rear Bearings $150.00                                Complete Kit $250.00
SP400 Ceramic Bearings                                                                                               

Superbike Brake Lines: This kit has a Dash 3 inner Features 16 braided lines of steel around the inner teflon, and all lines are coated with PVC protective coating. Also prevents scratches on the bike and keep fluid from being affected by humidity. Threads directly into calipers without use of banjo bolts, allowing for smoother and more effective flow of brake fluid. Provides stronger lever feel and quicker stopping power because it creates better pressure to the caliper.Used in FIM World Supersport 300 

     SP28-400 Superbike                                    Available soon

Spears Racing Folding & Adjustable & Expandable Levers:CNC Machined Billet (6061 Aluminum ) Motorcycle Brake and Clutch Levers. These Levers are Foldable, Expandable, Adjustable, Replaceable and Extremely Affordable. The levers can be 90 degrees folded up, feature minimizes the possibility of breaking a lever in the event of a crash. Extendable lever tip can go from full length to short or anywhere in between.Fully adjustable(6 positions),Fully extendable(2 or 4 fingers),Available in Black
     SP400 Lever Set                                                                                                                  $79.99/set                                                                                

High Lift Roadracing Cams Hard Weld: Spears Racing camshafts are developed through countless hours in the dyno room, racetrack, and CNC cam grinding machine. Spears racing camshafts are welded up and reground with the reliability and precision you come to expect. Spears Racing camshafts give the racer improved midrange and top end Horsepower, without sacrificing low end rideability.


  SP17-400                                     Available soon

Sp-Lever Guards: Lever Guards are designed to keep other riders from accidentally making contact with your brake or clutch lever during close racing.Front brake and clutch lever guards machined from 6061 T6 Aluminum fits any 7/8"(22mm) handlebar and clip-on with 13mm,.0625 and 18mm inner hole. The aluminum guards are bolted to a CNC-machined aluminum base that is adjustable for length to accommodate a range of brake and clutch levers.   Easy to install,quantity 2 pices (brake and clutch side). Color black.

  SP-Lever Guards

Spears Racing Titanium Disc Rotor bolts: A must for any racer or those who simply wish to replace rusty originals! A replica of manufacturers original design but in superior quality material. Our Titanium 6AL-4V (grade 5) bolts are highly corrosion resistant, extremely light (40% weight saving!) and with rolled threads offers excellent strength and quality.Set of (8) bolts

 SP320-Rotor Bolts                                   Available soon                                                $90.00/set

Spears Racing's 415 drive chain conversion kit:for the Kawasaki EX400. This kit will reduce your unsprung weight/rotational mass by over 3lbs.Spears Racing 415 Drive chain kit is used by several WSS300 teams as well as hundreds of race teams around the world.Since the inception of this amazing product Spears Racing riders have been able to set several track records along with winning several class championships and National #1Plates. ****Stock Gear Ratio 14/41= 2.92  415= 18/53 =2.94****
415 Drive chain: This is a replacement drive chain, the EK415R chain has a tensile strength of 4,610 and weighs (2.164 lb/oz/982g) Each is high-performance, lightweight, low-friction chain designed exclusively for racing provides the highest wear resistance, Highest tensile strength out of all 415 Chains and impact resistance distinctive gold-plated finish. SP04-400 EK415R                                    $99.99 ea
The steel counter shaft sprocket is a replacement sprocket for the Kawasaki ninja 400cc it is drilled to be the lightest steel sprocket on the market (sprocket weights 4.6oz./130 Gms. 18 Tooth) SP04-400 CS                                       $49.95 ea
415 Rear Sprocket is made from the highest grade aerospace quality 7075-T651 aluminum and weighs (9.64 oz./274g depending on tooth count) it is Machined not Stamped,this way you need not to worry about it being " True to the alignment" of your chain and front sprocket (no wobble).                           *** Lightest Rear 415 Sprocket on the Market Made in the USA ***
When making your choice for the Kawasaki  you can go with the  this will be the closest to the OEM gearing 

                     48t                   49t                   50t                       51t                       52t                         53t                          54t                            
                                   55t                 56t                          57t                             58t                        59t                             60t



                                         All Spears Rear Sprockets are $70.00/ea


Spears Racing Titanium 10mm x 1.25  Sprocket Nuts: A must for any racer or those who simply wish to replace rusty originals! A replica of manufacturers original design but in superior quality material. Our Titanium 6AL-4V (grade 5) nuts are highly corrosion resistant, extremely light (40% weight saving!) and with rolled threads offers excellent strength and quality.(Sold Each or set)

     SPTitanium Nuts                                  Available soon                          $5.00/ea           $30.00/set

2018 NINJA 400R: Drop in High Compression piston kit Machined from 2618 T6 high tensile forged aluminum Dome features smooth flowing radius,under crown machining to lessen the overall weight,Anti Det. Grooves,Acc Grooves,Double Broach Grooves for extreme applications including professional competition Rings, Pins and Wire locks are included in the kit.Comp Ratio 13.0:1.

​                SP01-400                                      Available soon

Spears Racing Titanium Sprocket Stud Kits: M10x1.50 This is a kit of 6 sprocket carrier studs, this is a must for any racer or those who simply wish to replace rusty originals! A replica of manufacturers original design but in superior quality material. Our Titanium 6AL-4V (grade 5) bolts are highly corrosion resistant, extremely light (over 50% weight saving per piece!) and with rolled threads offers excellent strength and quality.​     OEM WEIGHT 25g ea/Titanium 12g ea     
    SPTitanium Stud Kit 400                    Available soon                                                      $59.99/set

Spears Racing Aluminum Swingarm Spools:  Spears Racing is known worldwide for our attention to detail. Our stand spools are a product that not only looks like a work of art, is functional too.  Made from 6061 T-6 billet of aluminum, then undergoes a special recipe of anodizing  The grooves on these spools at the point of swingarm stand contact are deep so the engagement is solid, which makes it impossible for your bike to fall off the stand under normal use.​​

  SPSwingarm Spool Kit