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RSchultz Consulting Bicycle Industry Consultant

Roof Racks can be Hazardous to your bike

Posted on May 3, 2013

I don’t need to add too much to this, but, I still hear local stories on this all the time. DON’T FORGET TO REMOVE BIKE FROM ROOF RACK BEFORE DRIVING INTO GARAGE!...

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Pet Peeve #1

Posted on May 2, 2013

WEARING TEAM KIT ARM WARMERS ON THE WRONG ARMS The thing that irks me and I tell guys all the time… “You are wearing your team kits arm warmers on the wrong arm. Inevitably, 1/2 of the cyclists out there have the warmers on the wrong arms so the sponsors name is upside down when riding. PEOPLE, CHECK YOUR ARM WARMERS for correct positioning of your sponsors...

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Recovery Pulse vs Resting Pulse Rate

Posted on May 1, 2013

From Dr. Gabe Mirkin’s Fitness and Health E-Zine April 28, 2013 High Resting Heart Rate Increases Death Risk in Healthy People The Copenhagen Male Study followed the health of 3000 men for 16 years and found that the higher the resting heart rate, the more likely that person is to die (Heart, Apr 17, 2013). Those who had lower resting heart rates and did not exercise still lived longer than those who had higher resting heart rates, even if they exercised. The authors conclude: “This suggests that a high resting heart rate is not a mere marker of poor physical fitness, it is an independent risk factor for premature death.” The authors adjusted results for heart attack risk factors such as smoking, obesity and physical fitness. Compared to a resting heart rate of 50 beats per minute, a resting heart rate of • 71 to 80 beats/min was associated with a 50 percent increased risk of death during the study period, • 81 to 90 beats/min was associated with a 100 percent increased risk, and • over 90 beats/min...

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Wheel Selection – A Point to Consider ?

Posted on Apr 29, 2013

I have discussed this with several of the hard-core Cervelo testers and riders and have come to the conclusion that Wheel selection is as important as frame selection. Meaning that I believe a given frame is designed with a specific wheel in mind. Here’s what happened. I have an R5ca and wore out a set of C24 wheels. I bought a set of C35’s for the bike, but the bike felt dead – felt like a piece of lead being pushed down the road. I seemed to have to labor more to spin the pedals. Went back to C24’s and the bike sprang back to life. It again feels light and very responsive. I could definitely feel a TREMENDOUS difference between these two wheels. I also have a Giant TCR Advanced SL that rides much better with C35’s than C24’s. My opinion is that C35’s are way too stiff for an already stiff (R5ca) frame, and the C35 wheels seemed to throw off the performance balance of the bike. But again, the Giant TCR Advanced SL loves the C35’s...

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Points to consider before tire selection on frame with narrow stays....

Posted on Apr 26, 2013

First off, I am on my second set of tubeless tires. First set was the latest IRC Roadlite Tubeless. Will be doing a review writeup soon. Great tires, now am on Hutchinsons. Once you go tubeless, you dont want to go back. Tubeless ride softer and track better. Going back to a Clincher/tube combination, I found the ride harsh, jolty, bumpy, like riding on a rock. Tubeless are well worth the extra $$. If you don’t have a tubeless wheelset, don’t worry, Stan’s NoTubes has a Tubeless kit and others will be joining soon. Now, back to the issue at hand. Here’s something to think about when guessing if a tire will fit a frame with narrow stays. There is the initial measurement, as well as a ‘900’ mile measurement. Let me tell you what happened. R5ca with Dura Ace 9000 wheels – I have Hutchinson 700×23 Fusion 3 tubeless on the front. Hutchinson 700×25 tubeless Intense on the rear. Long story, but I am testing some tire combinations for a client. After 900 miles, here is what they...

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Rotor Q-Rings Explained

Posted on Apr 9, 2013

Jeremy asked about Q-Rings. “Why are they better, what makes them work?” I found a youtube video from Rotor/Cervelo Test Team from 2010 that explains this very well <click here> Also, for a more detailed explanation of the actual science behind the Q-rings <click...

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CERVÉLO Rca – EVOLUTION (Official Promo)

Posted on Apr 9, 2013

Quite a few people have asked me for information on the successor of the R5ca. Here is a recent youtube promo I found from CERVÉLO (3/14/2013) Click on the text below. Say hello to the new Cervélo RCA. As stiff as its predecessor, the R5ca, but at an even lighter weight and with reduced aero drag. The RCA is Uncompromised Engineering...

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