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Repair Help and Education

Posts by repair@parktool.com

Bicycle Mechanic Languages Spreadsheet

The most recenet addition of the database is Serbian, as of March 26, 2008. Thank you all who have helped expand this tool and provide feedback. I hope you find it useful. Download: Bicycle_Mechanic_Languages_7.xls In my line of work it has been necessary to travel to various countrie...

Aero Lever Brake Splitter Installation

This article will discuss the installation of brake cable splitters for double control aero brake levers on racing bicycles.

Chain tension for Tandem Front End

This article will discuss sizing the captain-to-stoker chain for tandems, called the "primary" chain.

Dura-Ace 7800 Rear Hub Service

This article will discuss the service of the Shimano Dura-Ace 7800 rear hub.

BMX-Freestyle Detangler Adjustment

This article will discuss the "detangler" headset and brake system.

Hayes® Hydraulic Brake Service

This article will discuss the service and adjustment of Hayes hydraulic disc brake systems.

Disc Brake Mount Facing (IS type) with DT-1

This article will discuss the use the Park Tool DT-1 Disc Brake Mount Facing Tool. The DT-1 is a precision tool system designed to machine disc brake mounts flat, parallel, and in the same plane.

Chain Tension on One Speed Bikes

This article will address the adjusting chain tension on bicycle with a single sprocket in the rear and a single sprocket in front.

Gore Ride-On Cable Installation

This article will describe the installation of the Gore® Ride-On® cable system.

In-Line Brake Levers (cross levers)

This article will discuss the installation of the in-line brake levers, also referred to as "cross levers."

One-Piece Bottom Bracket Service

This article will discuss service on one-piece crank bottom bracket bearings("Ashtabula").It will also discuss pressing the three-piece cartridge bearings into the Ashtabula bottom bracket shell.

Trouble Shooting a Creaky or Noisy Drive Train

This article will discuss trouble shooting noisy drive trains. Creaking and squeaking noises are annoying, and can be a sign of more serious problems. Damage to component parts may result if they are left unattended.

Wheel Dishing (Centering)

This article will discuss the use of the WAG-4 Wheel Dishing Gauge and the WAG-5 Wheel Dishing Gauge.