B(ike)log — Mtb Cranks

An introduction to T47 Bottom Brackets

Posted by Elite Custom on

T47 Bottom bracket on a Cielo Racer Disc 2017 Chris King says the solution for creaky press-fit bottom brackets is good old-fashioned threads.  Here, we have 3 types, the ThreadFit24 (BSA) the ThreadFit30 (For BSA to Oversized spindles) and the latest Open standard, T47 (Basically a PF30 with Threads)The intention of the T47 is to provide an oversize bottom bracket shell for compatibility with many crank axle variants, and generous real-estate for oversized frame tubes (light, stiff, etc.), but with a quiet and user-friendly threaded cups.The "open" standard means anyone can use it. The standard is designed to allow most...

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Praxis Lyft carbon cranks combine weight and stiffness

Posted by Elite Custom on

Features hollow carbon construction and M30-THRU bottom bracket design Praxis is a Santa Cruz, California-based company with its foundations rooted in research and development. They came up with the 11-40 wide range 10-speed cassette in 2015 that gave many riders a reliable and cost-effective 1x gearing solution. Since then, they’ve expanded their line-up significantly including the Lyft crankset. Press play to learn more. The Praxis Lyft carbon crankset features hollow carbon construction and M30-THRU bottom bracket design that can be adapted to fit a wide range of frames. The cranks with 30t chainring weigh 454 grams and sell for $500. (SGD 750) With...

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