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XR100: Engine

XR100

Chain Size:                Front Sprocket:        Rear Sprocket:        Front Tire:        Rear Tire:        Spark Plug:
428x112 ('81) 14T 50T 2.50-19 3.00-16 C7HSA ('81)
428x112 ('82-'84) 14T 50T 2.50-19 3.00-16 CR7HS ('82-'84)
428x118 ('85-'89) 14T 50T 2.50-19 3.00-16 CR7HS ('85-'89)
428x118 ('90-'03) 14T 50T 2.50-19 3.00-16 CR7HSA ('90-'03)

 

Engine

Complete big bore kit. Bolt it on and ride!

  • Includes a pre-bored, big-finned aluminum cylinder for improved cooling
  • Cylinder, rings, piston pin, & clips
  • BBR exclusive performance camshaft
  • Heavy-duty valve springs
  • Rockers with tappet adjusters
  • Gasket kit
Ships in 3-5 business days
$329.95

Heavy duty springs help prevent clutch slip in high-performance motors.

  • Custom wound from chrome-silicon wire
  • Preset for long life
  • Higher spring seat pressure to resist clutch slip
Ships in 3-5 business days
$41.95
XR100 '81 - '14
  • Bolts are CNC-machined from high-quality aluminum
  • Embedded magnet helps keep bolt in place
  • Pre-drilled holes make for easy installation of safety wires
Ships in 3-5 business days
$25.95
Universal fit. May require additional adjustment or modification.

Hardened chrome vanadium steel with built in rubber insert to hold spark plug steady.

Thin wall bi-hex sockets designed to access narrow spark plug holes.

Fits 3/8" square drive and hex drive, 14mm, 16mm, 18mm, 21mm.

Choose Size
Ships same business day
$14.95
XR100 '81 - '03

Keep your motor running right with fresh spark plugs!

NGK is one of the world's largest manufacturer of spark plugs, whose products are used as original equipment (OE) on countless motorcycle and automobile models.

  • High-quality materials and superior construction for serious power and reliability
    • Pure alumina silicate ceramic insulator provides high strength and better heat transfer
    • Deep-seated copper core for a wider heat range
    • Nickel alloy tip for longer life
    • Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
  • Choosing the right high-quality plugs prevents fouling from running too cool and preignition from running too hot
  • NGK plugs available for almost every application and riding style
Add Anti-Seize
Ships same business day
$3.95
Universal fit. May require additional adjustment or modification.
  • Contains degree wheel, standard unit indicator, adjustable magnetic stand, and three positive stops (10 mm, 12 mm and 14 mm threads)
  • Can be used to install and adjust timing of any cam
  • Wooden carrying case
Ships in 3-5 business days
$315.95
Universal fit. May require additional adjustment or modification.

Made from medium carbon steel with hardened jaws. It features spanner pins and the jaws open up to 5" wide. It's ideal for holding clutch hubs, flywheels, gears, sprockets, etc. Made by Motion Pro.

Ships same business day
$32.95
Universal fit. May require additional adjustment or modification.

This tool is designed to separate vertically split crank case halves on two and four stroke engines. Adjustable arms allow it to be used on multiple bolt patterns found on a variety of makes and models of motorcycles. Industrial grade steel construction with black oxide finish for long service life. Comes with 8mm mounting bolts and 6mm adapters. Protective carrying case included.

Ships same business day
$112.95
Universal fit. May require additional adjustment or modification.

For easy removal of recessed oil filters.

Conical point screws pierces and grabs the metal end cap of the filter.

reduces potential damage to the engine cases.

NOT for use on re-usable oil filters.

Ships same business day
$13.95
Universal fit. May require additional adjustment or modification.

A 3-pack of easy to apply strips measure the temperature of engine, suspension, and radiator components. Temperature range 149° to 248°

Ships in 1-2 business days
$14.95
Universal fit. May require additional adjustment or modification.

Thread Chasers are designed to clean and re-cut damaged aluminum threads.

This kit contains the two sizes most common on metric motorcycles, M6x1.0 and M8x1.25.

Thread Chasers also remove dirt and metal shavings that become captured in thread grooves.

Uses 8mm or 10mm hex sockets, a Must for all tool kits.

Ships same business day
$5.95
Universal fit. May require additional adjustment or modification.
  • 26 straight blades
  • SAE and metric markings
  • Check for clearance on valves, ignition points etc.
  • Includes 26 blades varying in thickness from .0015"/.038 mm to .025"/.635 mm
Ships same business day
$12.95