Close-up of two metallic circular components with "REDLINE" in red on black, featuring a central hole and smooth finish—Redline Techmatic USA BB Set, compatible with Redline Flight Crank and Techmatic Bottom Bracket systems.

Two metallic circular objects labeled "REDLINE" are side by side on a textured black diamond-grid surface, resembling parts from the Redline Techmatic USA BB Set.

Two metallic circular objects labeled "REDLINE" rest on a textured black grid surface, resembling components like the Redline Techmatic USA BB Set.

Black-and-white instruction sheet for the Redline Techmatic USA BB Set with product images, installation steps for the 401 Flight Crank, removal instructions, care info, and details on sealed IJK bearings.

Description

If you know the Redline Flight crank, you probably know what a Techmatic bottom bracket is. It was not just a solution for installing the Redline 401 Flight crank, it was a piece of precision engineering worthy of Redline's reputation.

Using the original Redline blueprints drawn by Linn Kastan draftsman Duke Romero, Redline manufactured these Techmatic cups and packaged them with a teflon-sealed bearing from IJK Japan, just like the 1980s version.

Features

Made for the Flight crank. The Techmatic was Redline's answer to installing the 401 Flight crank, and this set does the same job.
Built from the original blueprints. Redline went back to Duke Romero's original drawings, so the cups match the way they were first drawn.
Teflon-sealed IJK bearings. Two sealed bearings from IJK Japan, the same spec used on the 1980s version.
Aluminium cups and nuts. Two aluminium cups and two threaded spindle nuts come in the set, so the fitting hardware is covered.
Redline decals in the box. Two Redline decals are included with the set.

Specifications

Fits: Redline 401 Flight crank installation
Material: Aluminium cups
Bearings: 2x sealed teflon-sealed IJK Japan bearings
Included: 2x aluminium cups, 2x threaded spindle nuts, 2x sealed IJK bearings, 2x Redline decals