Bottom Brackets

Winspace SLC 2 Bike Frame: Engineer’s Review
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Winspace SLC 2 Bike Frame: Engineer’s Review

Introduction The Winspace SLC 2 bike frame is a great option for riders looking for a durable and lightweight frame. Made with Toray T800 carbon fibre, this frame is strong and stiff, yet very lightweight. It also features an integrated headset and bottom bracket, which makes it easy to assemble. Overall, the Winspace SLC 2…

Dolan Bikes DR1 Bike Frame: Custom Bottom Bracket
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Dolan Bikes DR1 Bike Frame: Custom Bottom Bracket

The British company Dolan (based near Ormskirk in Lancashire, England) have been famous for supplying bikes to many household names over the years and specifically in the field of track cycling. In the late nineties, they started to import frames from the far east. A Dolan DR1 bike frame was initially brought in to Mapdec…

TREK Checkpoint Bottom Bracket Fix: Paul Green Vlogs
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TREK Checkpoint Bottom Bracket Fix: Paul Green Vlogs

Paul Green of Paul Green Vlogs got in touch about some problems he’d been having on his Trek Checkpoint bike. He had gone through bottom brackets at quite an alarming rate. Almost four bottom brackets from different manufacturers had become unserviceable in a relatively short time. The failed bottom brackets consisted of a few Shimano OE units and most recently a Thread Together type BB from Wheels Manufacturing. The bottom bracket type was BB86 and the frame was made of aluminum.

Madison Genesis Titanium Threaded Bike Gets Reamed
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Madison Genesis Titanium Threaded Bike Gets Reamed

A cyclist sent in this Madison Genesis Le Croix titanium bike frame in for a bottom bracket fix. This bike had been through bottom brackets at an alarming rate and the non drive side was visibly damaged. Some further checks were carried out and some issues around stress relief were highlighted. Eventually fixed.

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…

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