Repair Help

Chainring Lockring Tool Selection

Chainring lockrings have become a more popular feature on new bicycles, particularly on e-bikes. This article will review the selection of Park Tool options for various chainring lockring systems.

Crank & Bottom Bracket Removal & Installation: Campagnolo® Ultra-Torque® Video

This article will review how to remove and install bottom brackets for Campagnolo® and Fulcrum® Ultra-Torque® cranksets. The service requires the use of the CBP-8 Campagnolo® Crank and Bearing Tool Set.

Bottom Bracket Adjustment Using Preload Ring Video

This article will discuss how to adjust bottom bracket bearing preload on systems using preload rings.

Crank Removal and Installation: Two-Piece Compression Slotted Video

This article will review removal and installation of two-piece compression slotted cranks such as Shimano® Hollowtech® II.

Crank Removal and Installation: Three-Piece Video

This article will demonstrate removal and installation of three-piece cranks. It covers square tapered spindles as well as splined style such as ISIS Drive and Octalink.

Crank Removal and Installation: Self-Extracting Video

This article will review removal and installation of self-extracting type cranks.

Crank Removal and Installation: Campagnolo® Power Torque™ Video

This article will review the service of the Park Tool CBP-8 Crank and Bearing Tool Set servicing the Power Torque™ crank system from Campagnolo®.

NOTE: before watching video, see ALTERNATIVE REMOVAL TECHNIQUE below.

Removal of Cranks with Damaged Threads (Square Type Only)

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

BMX Three Piece Crank Service

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