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XTREME HIGH PERFORMANCE ENGINE PARTS

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 XTREME MOTOR Company offers a wide range of High Performance parts and Accessories for our popular TYPHOON and PIT PRO Models, along with brands such as UNNILLI™, PitsterPro™, SIK50™, HONDA™, POLARIS™, ETON™, REDCAT™ and others!
 




Our High Performance bore kits are available in a wide variety of sizes and configuartions. We offer kits for GENUINE XTREME Engines along with most XR50/70® and CRF50/70®style engines as well as many Chinese "clones"!

Kits start from as simple as a Big Bore Cylinder, Piston Kit and gaskets up to a comprehensive Kit with Carburetor,Intake, HP head, Performance Cam and more!


(PLEASE NOTE!! Big Bore Kit contents will vary between applications, Photo is not representative of any one particular kit.)

Bore Kits Available for many different engines, Call for Details

High Compression engines will require the use of Premium Pump Gasoline or Race Fuel to prevent detonation and catastropic engine failure.  Use of regular fuel and/or lean mixtures will result in burned pistons. 

Also be aware that if you are installing these kits on an engine with electric start, you must mill the bottom of the cylinder to clear the starter motor.  See pictures of the modified cylinder by clicking on the links below.

PICTURE # 1   PICTURE # 2

Our Current part numbers include:

200088:

Our "Economy" 88 kit offers Excellent Performance and Value at a very reasonable price. Limited Availability, includes Cylinder, Piston kit, Head, Cam and Carb. All you need to change your anemic 50 into a 88cc screamer. The difference is astounding.   Converts an SS50 or TY70 into an 88 cc powerhouse.  Easily TRIPLES stock 2.1 horsepower of the 50cc engine!  This kit is on closeout,  while supplies last. 

$289.99 ! SPECIAL!!!
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200107A:

This is an all out CR107 powerup kit for those customers that must maintain the 107cc displacement!  Always check cylinder to case clearance on 2007 and later SS88. Some cases have extra material that interferes with the installation of the cylinder. Call or click Bore Kit Special Instructions for TSB information.

$449.99
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200107B:
 

A kit to renew and increase compression and perfomance on your CR107, also upgrades the SS88 and TY90 to a 107 using stock appearing parts.  Always check cylinder to case clearance on 2007 and later SS88.  Some cases have extra material that interferes with the installation of the cylinder.  Call or click Bore Kit Special Instructions for TSB information.


$299.99
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200107C:

A simple and reasonably priced Big Bore Kit to upgrade any Xtreme 86 cc engine to 107 cc or to renew the top end of your CR107 series XTREME Pit Bike to new specifications.  Always check cylinder to case clearance on 2007 and later SS88. Some cases have extra material that interferes with the installation of the cylinder. Call or click Bore Kit Special Instructions for TSB information.

$149.99
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200113:

Change your CR107 to a 113.8 cc thumper without case boring! Easy and Quick power-up option for those CR107 users craving more power. Kit contains a 54mm cylinder and Race Head along with other neccessary component parts.


$399.99
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200114A:

An upgrade path for the TY90 user that allow the TYPHOON 90 to attain 114cc engine displacement. High Compression and Big Valve head are just part of this value priced kit. No need to bore the cases or install a crankshaft. Improved exhaust and ignition are also recommended.

$399.99
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200114M:

SS88 owners can benefit from this Big Bore kit. Similar to the 200114A kit with the addition of the VM26 Mikuni Carb kit. NO need to bore the cases or to replace the crankshaft.   Always check cylinder to case clearance on 2007 and later SS88. Some cases have extra material that interferes with the installation of the cylinder. Call or click Bore Kit Special Instructions for TSB information.

$499.99
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200495:

A 95 cc kit for the owners of the TY70 High Performance in a smaller package. Uses our Big Valve Race head for enhanced High end power. Not for Novice riders.  Always check cylinder to case clearance on all TY70 as well as 2007 and later SS88. Some cases have extra material that interferes with the installation of the cylinder. Call or click Bore Kit Special Instructions for TSB information.


$499.99

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200976:

117 Stroker Kit for XTREME 50,70,90 and 107 Xtreme engines. Case boring required on 50cc engines. 70 cc and up check clearance and machine as needed. This kit produces a stout running 117cc engine that makes all the power that the clutch and transmission can handle. Fits other brands along with Xtreme. Includes High Performance VM26 Mikuni Carb Kit (p/n 200992). Oil Cooler, Performance Exhaust and Performance ignition parts are required for maximum power and durability.


$639.99

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200976X:

Same as above, except without carb kit.

$539.99

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200991:

Typhoon 125 Stage 1 Power Up kit. Includes 52.4 mm 200396 High Compression piston, 200299CR High performance camshaft and 200371 GASKET Kit to increase the power of your TY125!   Greatly increases compression ratio and corrects piston to head squish band clearance.  Does Not increase Engine displacement.  Cylinder boring IS NOT required.  Power increase is a result of higher compression improved combuston and re-profiled camshaft.

$149.99
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200993:

Typhoon 125 Stage 2 Power Up kit. Includes 200345R Big Bore 54mm High Compression piston, 200299CR High performance camshaft and 200371 GASKET Kit to increase the power of your TY125!  Greatly increases compression ratio and corrects piston to head squish band clearance along with an increase in piston displacement to 131cc.  PLEASE NOTE:  You must BORE the stock cylinder to fit this piston. 


$149.99

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200994:

146 Big Bore kit for TY125, includes 57mm bore High Compression Piston, Cylinder and Gaskets.  Our new upgraded 57mm cylinder features a ceramic liner inside a new lightweight aluminum casting.  Offers better cooling and inproved wear resistance for longer engine life.   Increase in Bore results in 146cc piston displacement as well as higher compression ratio.  Improved carburetion, exhaust, ignition, clutch and head port work are all recommended for maximum performance.


$169.99
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200994R:

146 Big Bore kit for TY125, includes 57mm bore High Compression Piston, Cylinder and Gaskets along with our 200299CR camshaft.  Our new upgraded 57mm cylinder features a ceramic liner inside a new lightweight aluminum casting. Offers better cooling and inproved wear resistance for longer engine life. Increase in Bore results in 146cc piston displacement as well as higher compression ratio.    Delivers increased power over standard kit # 200994 from the revised camshaft profile.   Improved carburetion, exhaust, ignition, clutch and head port work are all recommended for maximum performance.


$169.99
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209002:

Same as to 200994 except adds the 200992 VM26 Mikuni Carb Kit and 200299CR H/P Camshaft.  Our new upgraded 57mm cylinder features a ceramic liner inside a new lightweight aluminum casting. Offers better cooling and inproved wear resistance for longer engine life. Increase in Bore results in 146cc piston displacement as well as higher compression ratio. 

$419.99

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