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Park Tool School - bike maintenance 101

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Page 1: Park Tool School - bike maintenance 101
Page 2: Park Tool School - bike maintenance 101

Glossary – parts of the cycle

Tyre & tube service

Wheel inspection

Brake inspection & adjustment

Chain wear & cleaning

Cog wear & inspection

Index shifting & adjustment

Page 3: Park Tool School - bike maintenance 101

Removing the tyre

Inspecting the tube

Fixing the puncture

Diagnosing the cause (why bother? )

Page 4: Park Tool School - bike maintenance 101

Inflate tube

Locate puncture – listen or put in water

Mark hole

Sand hole

Patch hole (pre-glued or normal patch)

Ensure proper bonding

Page 5: Park Tool School - bike maintenance 101

Overall -

Wheels bend out of true all the time

Spoke adjustment usually does the trick

Damaged wheels – can be because of

Impacts with rocks, potholes, curbs

Crashing

Grinding from caliper brakes

Page 6: Park Tool School - bike maintenance 101

Chain – very important to performance

Highly vulnerable

Tends to fail when under load

Common cause of failure – rivet pulled from

outer plate

Inspection – view chain from above, look at

each rivet for centering

Page 7: Park Tool School - bike maintenance 101

Rear cogs will eventually wear out

Chain loads only one side, and that side wears out

Chain then rides high on the ‘shoulder’ of the cog, causing it to slip under load

Two-three cogs tend to be most worn, while others are fresh

Page 8: Park Tool School - bike maintenance 101

Indexing: having a set distance for the rear derailleur and cable to travel to engage a specific gear.

This distance is a function of the shifter and derailleur working together

Page 9: Park Tool School - bike maintenance 101

Disc vs. rim brakes

Pro-disc: reliable, good stopping in adverse conditions, stop with bent rim

Con: needs tighter fitting tolerances

Pro-rim brake: easier tolerances, simpler to fix on the go.

Con: wet weather conditions, stopping power, rim condition important

Top tip: brake lever modulation is king.

Page 10: Park Tool School - bike maintenance 101

Brake for control, not only for panic stops

Factors affecting control: lever placement, cable system, alignment and quality of brake pads

Flat bar levers should be rotated to be in line with the rider’s arms

Drop bar levers can be moved based on your riding style

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http://www.bikeradar.com/gear/article/workshop-how-to-clean-and-lube-your-bike-18259/

Page 12: Park Tool School - bike maintenance 101