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Praxis Works Conversion Bottom Bracket – PART 2...

Posted on Sep 4, 2015

— PART 2 —   RECAP PART 1 of this 2-part article discussed the bearing technology chosen by Praxis for their Conversion Bottom Bracket. The take-away from PART 1 is that their chosen bearing might not actually be the best solution. PART 2 will look at the actual conversion bottom bracket / collet technology designed and built by Praxis. PROBLEMS WITH PRESS-FIT CUPS   Speaking with the same mechanics as mentioned in PART 1, all had mentioned that the #1 problem with standard Press-Fit Bottom Brackets is that they tend to move & wiggle, creak & squeak, click & clack as well as make several other noises. Most had also mentioned that they had seen a few bottom bracket cups ‘walk out’ of a frame. Every mechanic had the same solution – use Loctite® thread locker on both the inside and outside of the plastic cups. Loctite® tends to keep the cups securely in place as well as keep the bearings locked into the cups.     A BETTER SOLUTION   Most frames today are built with press-fit shells....

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A Look Inside a “Made In The USA” Bearing...

Posted on Sep 1, 2015

A Look Inside a ‘Made In the USA’ The Parts Shoppe (TPS) 6806 Bicycle BB30 Bottom Bracket Bearing As an engineer by trade, I am always looking at best ways to make the bicycle faster. It took about a year, but I was eventually able to find a Chinese bearing manufacturer who produces fairly decent hybrid-ceramic bearings. Most Chinese companies who claim to be manufacturers are actually just distributors. That’s one of the reasons it took so long to find an actual manufacturer making quality products. But, as I found out, the one drawback was that hybrid-ceramic bearings are quite a bit more expensive than their all-steel counterparts. I filed the following question in the back of my mind to address later -> “Is there a less expensive steel bearing at the same or better quality than these hybrid-ceramic bearings?” I ordered several sets of their hybrid-ceramic bearings and started testing. The bearings ran great – though it took them quite a while to settle in as well as they wore out after 1 season – about 10,000 miles. Still...

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Squirt Lube Barrier Balm

Posted on Aug 11, 2015

  Who is SQUIRT®?   Bikeinvention is a corporation, but, more importantly, is a small group of passionate cyclists from South Africa that have developed a wax chain lubricant with unique properties called Squirt®. They have also developed other unique and innovative products to improve the enjoyment of cycling. Among these products include a wax chain lubricant with very unique properties that improve chain life and performance (review is forthcoming), a tubeless tire sealant called Squirt Seal, a concentrated biodegradable bike cleaner called Bio-Bike, two sweat removal products called SweatSucker and SLURP and a long lasting skin protection balm called Barrier Balm which is what this mini-review will concentrate on.   What is Barrier Balm?     Squirt Barrier Balm is a thick protective salve that is rubbed into the skin where it comes into contact with the saddle protecting the skin from chafing and irritations. Barrier Balm also helps prevent saddle sores due to its anti-bacterial and anti-fungal properties. It is water and sweat resistant to ensure that it stays on the skin for an extended period of...

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Praxis Works Conversion Bottom Bracket – PART 1...

Posted on Aug 10, 2015

    — PART 1 —    Just like with Consumer Reports, a lot can be said about actually buying a product to test. In this case, the tester is not beholding to the manufacturer. I bought this bottom bracket through my own funds and will share an honest review of my thoughts and experiences. On a second note, this seemingly simple review turned more complicated than originally thought due to ‘bearing issues’ which you will read about in Part 1. This article was originally going to be a short 2,000 word maximum review on the Praxis’ Bottom Bracket solution to the creaking and squeaking seen in most press-fit bottom brackets. Part 2 will review the Praxis technology.   INITIAL OBSERVATIONS   Since there are several versions of this bottom bracket available (pictured above), you will need to make sure that you pick the right one for your application. Praxis currently supports SHIMANO, SRAM and CAMPAGNOLO in BB30 and PF30 in 68mm ROAD and 73mm MTB as well as Specialized OSBB. To make this selection even more complicated, frame...

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Having the Best of Both Worlds (Gearing)

Posted on Jul 15, 2015

OPTIMAL ROAD GEARING (for the rest of us) BACKGROUND Shimano’s latest Ultegra FC-6800 and Dura-Ace FC-9000 cranksets offer combinations not available by any other manufacturer. Shimano’s 4-arm pattern is designed so that there is no need for separate 110BCD and 130BCD cranksets. WHAT IS BCD? – BCD, or Bolt Circle Diameter is the diameter of the circle formed by the stack bolts. Stack bolts are the small bolts that hold the chainrings to the spider of a crank. In the past, most bikes came with full-size/standard gearing, mostly 53/39 chainrings. In order to support these larger rings, a 130mm BCD bolt pattern was used. The problem was that if 53/39 gearing was too big for you, the only option was to go out and buy another crankset, a 110BCD with 50/34 chainrings. This was called a ‘compact’ crankset. Shimano did away with all of this nonsense by redesigning their latest 6800 and 9000 cranksets to take ANY of their gearing, meaning, buy 1 crank set and you can easily interchange virtually any chain rings to achieve your needs. I say virtually since Shimano recommends a 16Tooth maximum difference between the large...

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Dura-Ace Shift lever buttons now turn Shimano CM-1000 camera on/off!...

Posted on Jul 15, 2015

Here is main page – http://shimano-sportcamera.com/us/application.php But, in order to make this work, you will need to pair the camera to your Di2. It took a little finesse, but here are the steps to make it work. Just tried it, finally got it to work. Here’s the secret to pairing. 1) Update phone app software (latest 1.3) 2) update camera firmware (latest 1.2) 3) update e-tube project software (latest 2.10) 4) update Di2 components on bike to their latest versions 5) turn on camera and its Wi-fi 6) connect phone to camera Wi-fi 7) bring up camera app on phone and go to settings | pairing sensor setting 8) disconnect di2 battery (on bike) and leave unplugged for 30 seconds 8a) or disconnect/unplug EWW01 9) reconnect battery or eww01 10) shift FD a couple times to make sure di2 is awake 11) slide PAIR Di2 on phone app That should do it!!! Here are the official changes…. Version 1.3.0(2015/7/10) For even greater ease of use, the following SHIMANO SPORT CAMERA functions have been added or changed: ◦It is now...

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InfoCrank by Verve Cycling

Posted on May 29, 2015

      WHAT IS A BICYCLE POWER METER? A bicycling power meter is a device that measures the power output of a cyclist. Most bicycle power meters use strain gauges to measure the applied torque from the cyclist, and when combined with angular velocity, power is calculated. These are called Direct Force Power Meters and are sub-divided into single-sided and dual-sided power meters. Single-sided power meters will attach a strain gauge to either the left/non-drive side crank arm, the rear hub, or the crank. Dual-sided power meters will usually attach one strain gauge to the left crank arm and one to the right crank arm. Some newer devices, called Non-Direct Force Power Meters (Non-DFPMs), do not use a strain gauge. Instead, they measure power through handlebar-mounted units that utilize the principles of Newton’s Third Law by measuring a cyclist’s opposing forces (gravity, wind resistance, inertia, rolling resistance) and combining these with velocity to determine the rider’s power output. Non-DFPMs are claimed by their manufacturers to be fairly accurate. By definition, these will display a single value in total watts. CHOICES,...

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FINISH LINE FIBER GRIP™

Posted on May 14, 2015

As founder of Bike Test Reviews, I spend a fair amount of time researching products. What works, what doesn’t? What’s good, what’s bad. Is it easy to use? How is it perceived by the cycling community? Is the literature easy to understand? Are the directions clear? Marketing hype or is this the real deal? Here’s an example of a simple product that works. Period. FINISH LINE makes a variety of products, all excellent and proven by the fact that their products have been around for a long time AND are still in demand. FINISH LINE makes chain lubricants, bicycle degreasers, brake fluids, cleaning products, tools, and specialty products – which includes Fiber Grip™. Most cyclists have either heard of FINISH LINE or have used at least one of their fine products. Recently, while reading through on-line forums, I noticed that there’s one BIG misconception … most think that ‘friction paste’ and anti-seize are the same thing. It’s clear that A LOT of people don’t understand what Fiber Grip™ is, nor what it’s really for nor why. Forums are full of cyclists putting...

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