Roasts

Shimano Crankset Failures: An Engineering Analysis
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Shimano Crankset Failures: An Engineering Analysis

Introduction Shimano have had some issues with their high end cranksets in recent times. It seems as though the Ultegra and Dura Ace cranksets are the primary units affected. There have been many reports of the cranksets fracturing in half. Some of these have been under modest load on turbo trainers whilst others have been…

High End Bike Shop trashes a Parlee Z5 frame by using Epoxy to fix a creaky bottom bracket
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High End Bike Shop trashes a Parlee Z5 frame by using Epoxy to fix a creaky bottom bracket

A high end bike shop in London decided it would be a good idea to fix a customer’s Parlee Z5 bike frame by using Epoxy to glue some Campagnolo bottom bracket cups in to the bike frame. What followed was a customer who was repeatedly going through bottom bracket cups – often in the space…

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