B(ike)log

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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10 of the best deep aero wheels lab tested

Posted by Elite Custom on

Which wheels are best for speed, stability, braking and handling? This article was first published on 220 Triathlon.com. Deep-section aero wheels offer some of the biggest speed gains you can find, along with your helmet and clothing. The difference between basic training wheels and the best of this group can be as much as four minutes in a 40km bike leg. In short, aero wheels are essential as soon as you switch from completing to competing. Super-deep  wheels, such as the 70mm-plus hoops here, are specialist tools for racing on flat and rolling courses. While they’re much faster than standard wheels, they...

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SOC17: Praxis Works debuts lightweight, hollow carbon LYFT mountain bike cranksets

Posted by Elite Custom on

The new Praxis Works LYFT is a very lightweight mountain bike crankset. If claimed weights hold up, they’re in the realm of Race Face Next SL G4, which are among the lightest cranks available. Check the video for details on that, plus the HD version for more aggressive (or heavier) riders, and catch a few more pics and specs below… Claimed weight for the LYFT Carbon cranks, with spindle, 175mm arms and 32-tooth chainring, is 460g. The HD version beefs up the arms and spindle and comes in about 548g (170mm, 32-tooth ring). Praxis’ cranks work with a 30mm spindle, and...

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Geek’s Guide to the New ELEMNT BOLT

Posted by Elite Custom on

Wahoo Fitness set out to design a bike computer that helped improve your performance, not just record it. “In recent years the sport of cycling has put a premium on the study of aerodynamics and gaining a mechanical advantage wherever possible. Knowing this, it was Wahoo’s primary goal to create a computer that improved results on the bike, not hinder them… The only way to do this was to think about the end result and work backward from there. This led us to design the computer and the mount as one; an integrated aerodynamic package. All gains needed to be...

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