Module 8:  Servicing Front Headsets

Videos to Be Watched Before Class

Module 6:  Servicing Wheel Hub Bearings and Free Hubs

Module 10:  Brakes

Class Activities
  • Check bike fit and adjust as necessary
  • Wash bike
  • Clean and lube chain

Videos to Be Watched Before Class

Module 7:  Servicing Derailleurs and Shift Cables 

Concepts to be Covered
Bottom Bracket TypesBottom Bracket Parts
Bottom Bracket Removal
Specialty Tools Used with Bottom Brackets



Module 2:  Chain and Crank Removal

Class Activities
  • Cut a spoke
  • Replace the cut spoke
  • Check spoke tension on both front and rear wheels and true both wheels as needed

Module 11:  Bike Fit and Routine Maintenance

Concepts to be Covered
Removing, cleaning and installing rear derailleursReplacing shift cables and housings
Adjusting rear derailleurs including cable tension, B screw and high/low stops
Adjusting front derailleurs including cable tension and high/low stopsChain installation using a master linkLubing chain


Class Activities
  • Identify the different types of brakes
  • Remove and reinstall at least one brake pad
  • Adjust brakes front a rear
Class Activities
  • Remove chain
  • Identify and order replacement chain and master link
  • Identify crank type
  • Remove crank


On Bike Skills
  • Starting Up - Correct Gear and Power Position
  • Braking
  • Hand and Audible signals
  • Shifting, Including Starting, Stopping and Riding Hills
  • Riding in Bike Lanes
  • ​Riding in Travel Lanes
  • Riding on Sidewalks
  • Traffic Control Devices
  • Changing Lanes
  • Group Riding 
  • Dealing with Obstacles

Videos to Be Watched Before Class

Concepts to be Covered
Removing and replacing spokes and nipplesThe purpose of rim tape
Spoke configuration (e.g., two cross, three cross, or four cross)
Using a spoke wrench to adjust spoke tension    

Using a wheel truing stand to true a wheel


Videos to Be Watched Before Class

Concepts to be Covered
Tire PressureTire OrientationValve Types and Valve Cores
Tire and Tube SizingWheel Removal and Reinstall
Tire and Tube Removal/Reinstall
Patching Tubes
Releasing BrakesSetting Torque on a Bolt or Nut
Tire BootsRim Strips


Module 3:  Bottom Bracket Removal

Videos to Be Watched Before Class

Videos to Be Watched Before Class

Module 12:  Bike Safety

Each student should complete either the BWIRC Adult Bike Safety Course or the BWIRC Kids Bike Safety Course by clicking on one of the following links:


            Adult Bike Safety Course            OR         Kids Bike Safety Course


Each course includes a series of quizzes.  The adult quizzes are more difficult.  A score of 80% on each adult quiz is required to pass.  A score of 100% on both of kids quizzes is required to pass.  However, you may retake the quizzes as many times as necessary to pass.  If you take the adult quizzes, email your scores to hugh@theaarons.com.  If you take the kids quizzes, Hugh will automatically receive your scores.


Rewatch video above from last class on Threaded Bottom Bracket Installation ​​and Removal

Module 9:  Spoke Replacement and Wheel Truing

Videos to Be Watched Before Class

Videos to Be Watched Before Class

Module 5:  Cassettes/Freewheels and Chains - Specifications, Evaluation and Removal

Class Activities
  • Bottom bracket installation ​​


Videos to Be Watched Before Class

Module 4:  Bottom Bracket Installation

Videos to Be Watched Before Class

Concepts to be Covered
Different types of rim brakesBrake pad replacement and adjustmentBrake levers and cables, including cable tension


Class Activities
  • Identify bottom bracket type
  • Remove bottom bracket
  • Identify and order parts necessary to replace bottom bracket 


Concepts to be Covered
Threadless versus threaded (quill) stemsEvaluating headset bearing condition and tension Headset bearing removal, servicing and replacement
Tensioning headset bearingsUsing a small torque wrench


Class Activities
  • Remove and reinstall at least one wheel, tires and tube
  • ​Repair flat using a vulcanizing patch


Class Activities
  • Remove, clean and re-install rear derailleur
  • Inspect rear shift cable and housing, lube or replace as needed
  • Adjust rear derailleur including cable tension, B screw and high/low stops
  • Clean front derailleur on bike (do not remove unless non-functional)
  • Inspect front shift cable and housing, lube or replace as needed
  • Adjust front derailleur including cable tension and high/low stops
  • Reinstall chain using a master link and lube chain


Concepts to be Covered
Saddle Adjustments to Optimize Bike Fit Washing a BikeRoutine Maintenance Including Cleaning and Lubing Chain and Cleaning Metal Shavings from Brake Pads
Concepts to be Covered
Using GreaseBottom Bracket Installation
Using a Torque Wrench


Concepts to be Covered
Wheel bearing removal, inspection and replacementFreehub removal, inspection and replacement
Differences between sealed and unsealed wheel bearings
Cassette and freewheel installation 
Class Activities
  • Remove rear wheel bearings and free hub, if applicable
  • Clean, inspect and reinstall rear wheel bearings and free hub, if applicable
  • Remove front wheel bearings
  • Clean, inspect and reinstall front wheel bearing
  • Reinstall cassette or freewheel


The following curriculum is intended to be used with a BWIRC bike mechanic course taught by a live instructor in a classroom/workshop setting.  

The base tool set for this class is the Park Advanced AK-4 ADVANCED MECHANIC TOOL KIT 

Videos to Be Watched Before Class

Concepts to be Covered
Determining Chain WearDetermining Chain Specifications
Determining Cassette/Freewheel Type and Removal Tool Required
Cassette/Freewheel Removal
Determining When to 
Replace Cassette/Freewheel


Module 1:  Tires

Class Activities
  • Evaluate, remove, clean or replace and re-install headset bearings


Class Activities
  • Determine remaining useful life of chain and order replacements chain and master link as needed
  • Remove cassette or freewheel as applicable and order replacement as needed


Concepts to be Covered
Chain Removal Including Master LinksCrank TypesCrank Parts
Crank RemovalSpecialty Tools Used with Cranks 
Determing Chain Width
Click here to read about chain compatibility