Bearings

Winspace LUN Hyper 65 Carbon Wheelset Review
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Winspace LUN Hyper 65 Carbon Wheelset Review

Introduction Winspace is a company based in Xiamen, China that has come from virtually totally unknown outside of it’s home market to being quite a dominant player in the world of high performance bicycle wheels. Two years ago, the original Hyper 50 wheel was released to the public, since it’s initial released it has gained…

BB30A83 Custom Bottom Bracket Designed and Manufactured – Cannondale Topstone
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BB30A83 Custom Bottom Bracket Designed and Manufactured – Cannondale Topstone

A Hambini viewer recently enquired about a bottom bracket for his Cannondale TopStone Gravel bike. This bike uses a BB30A83 bottom bracket. A design which is highly unusual, extremely rare and unique to Cannondale. From the frame centerline, the driveside and non drive side apertures have an asymmetrical offset – hence the “A” in BB30A83….

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…

Hambini Bottom Bracket Install: Yoeleo R12 Disc Kyro’s House
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Hambini Bottom Bracket Install: Yoeleo R12 Disc Kyro’s House

Fresh from YouTube is another Hambini Bottom bracket install. This time in a Yoeleo R12. This is a revision of the R11 bike Frame that The Unabiker had issues with and it highlights the problems of frame tolerances. The bottom bracket is made to much tighter tolerances than the frames they are pushed into.

Teardown: Campagnolo Ultra Torque Crankset Mechanics explained  in Depth
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Teardown: Campagnolo Ultra Torque Crankset Mechanics explained in Depth

Campagnolo cranksets have a reputation of being well engineered and robust but they are not without their problems and quirks. This post explains one of those in detail which surrounds the myths of the preload system, the “safety clip”, the system stiffness (or lack of it) and the involved nature of a bearing replacement. Campagnolo Ultra Torque is found on many of the upper range of Cranksets including the Super Record and Record.

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