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SCOTT PRO TEC BIBS & JERSEYS

Posted on Sep 9, 2015

Every so often during our weekend rides, we see someone crash. Usually lots of torn clothing and severe road rash. Thankfully, we don’t see too many broken bones. Disregarding infections, the best case scenario is a couple of weeks of painful showers followed by a recovery period of several more weeks. In the Pro Tour peloton, crashes happen all of the time. Pros live with pain and torn skin, AND, are paid to continue racing. Only broken bones and sometimes concussions take them out of a race. After a crash, pros are not performing up to peak levels that they are paid for. When a pro is injured and his/her performance is sub-par, or, worst case, unable to race … which means that neither the team owner nor the sponsors are happy. The team owner is paying the cyclist to sit out races and the sponsors are paying for advertising space on a cycling kit that isn’t being worn. So as you can see, it is paramount that a pro cyclist remains injury free. And that’s where SCOTT RC...

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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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Bike Fit and USCF Coach

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Bike Fit and USCF Coach

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