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Repair Help and Education

Posts by repair@parktool.com

Freehub Service

This article will discuss the service of freehubs. Shimano, American Classic, Campagnolo, and Bontrager freehub removal will be reviewed

Internal Gear Hubs

This article will discuss the adjustment of internal geared hubs. These include SRAM® Dual Drive hubs, and Shimano® 3-speed hubs. Consult the manufacturer for further information. Internal overhaul and service is not covered.

Recording Position- road

This article will describe the use of the Road Positioning Chart for competitive road bicycles.

Recording Position- mtb

This article will describe the use of the MTB Positioning Chart for competitive road bicycles.

Front Derailleur Adjustments

This article will discuss the basic adjustment of the front derailleur. This article assumes the derailleur is compatible with the shifting system and is not extremely worn out.

Cutting Cable Housing

This article will discuss the cutting and sizing of both brake and derailleur housing.

Coaster Hub Overhaul (Pedal Brake Hub)

This article with discuss the basic bearing service of coaster-brake hubs. This is also referred to as a "back pedaling brake."

Shift Housing Length

This article will discuss the cutting and sizing of both brake and derailleur housing.

Internal Hub Transmissions

This article will discuss the adjustment of internal geared hubs. These include SRAM® Dual Drive hubs, and Shimano® 3-speed hubs. Consult the manufacturer for further information. Internal overhaul and service is not covered. SRAM® The SRAM® system uses a derailleur and...

Sidepull Brake Service

Properly adjusted brake systems require attention to small details. This article will discuss sidepull caliper arm adjustment, pad adjustment to the rim, pad centering, and pad clearance.

Bike Washing and Cleaning

This article will discuss bicycle washing. Cleaning the bicycle makes it look great, last longer, and improves performance.

BMX Three Piece Crank Service

This article will discuss the installation and service of the BMX three piece crankset using the 48 spindle spindle. These models of cranksets use cartridge bearing cups, a spindle with 48 small splines, a chainring and two arms.

Removal of Cranks with Damaged Threads (square type only)

This article will discuss how to remove square type cranks with damaged threads.

Torque Wrench Use

This article will discuss the use of the TW-1 and TW-2 torque wrenches.

Basic Thread Concepts

This article will discuss the basics of threaded fasteners and fastener tightening. The use of chemical thread-lockers will also be discussed. Understanding basic concepts regarding fasteners and threads will improve the skill and knowledge of any mechanic.

Bar End Shifter Service

This article will discuss bar end shifters. These are derailleur shift levers mounted to the ends of time trial or triathlon handlebars. They are also found on drop style handlebars.

Fork Steering Column Length and Sizing

This article will discuss cutting and sizing of bicycle forks.

Fork Column Length and Sizing

This article will discuss cutting and sizing of bicycle forks.

Ceramic Bearings

This article will discuss the specifications and proper servicing of ceramic bearings.

Di2 Shimano Electronic Intelligent System Installation

This article will discuss the installation and adjustment of the Di2 Shimano Electronic Intelligent System®. This system is incorporated in the designs of some new bike models. This article will focus on the installation of the system as an after-market component system.

Rear Derailleur Overhaul

This article will discuss the overhaul of rear derailleurs.

100-4X, 100-15X & 100-6X, and PRS-15 Service

This article will discuss the service of the 100-4X and 100-15X Extreme Range Clamps.

1951-15 adapter stud

The #1951-15 is a threaded stud that will allow the 100-25D to fit the PRS-15 repair stand. NOTE: The clamp will not fold downward as the original 100-15X clamp design. The #1951-15 adapter stud works only is the PRS-15 has the three-pointed knob behind the clamp, as seen on the ...

BB30 Bearing System Service

This article will discuss the removal and installation of the BB30 cartridge bottom bracket bearings.

Housing Length

This article will discuss the cutting and sizing of both brake and derailleur housing.