Jim’s Tech Talk By Jim Langley In case you read about my new Trek Checkpoint SL 5 Gravel Bike in this space back in February, I want to share that I’ve changed my mind on the bike’s stock gearing. What I wrote in that review was this: “Due to a parts shortage my bike came with a Praxis Alba 48/32 crankset instead of the GRX’s 46/30. I still get a nice low gear … [Read more...] about Going to Lower Gearing on My Gravel Bike
By Sheri Rosenbaum Cycology Price: $119.95 Sizes: XS-3XL Fit: True to size Materials: 82% Polyester, 18% Lycra Availability: Online Obtained by: Company sample RBR advertiser: No … [Read more...] about Cycology Women’s Bib Shorts and Long Sleeve Jersey Review
By Kevin Kolodziejsk An Explanation of a Study, Actually, That Reveals One in a Roundabout Way Does a deceptive main title make me a dishonest columnist? Especially when it’s in a font far larger than the explanatory subtitle to add to the subterfuge. Read on, my friend, and decide. I haven’t eaten any form of fish since the last day of August in 1979, the day I became … [Read more...] about A Surefire Sports Supplement
QUESTION: Hello: I am trying to reconcile my power and heart rate data. During a 2022 New England hillclimb, my normalized power for about 90 minutes was 193 watts, and my average heart rate was 168 bpm. During a one hour indoor training ride this weekend, my normalized power was about the same at 196 watts, but my average heart rate was only 139 bpm. Why would it be so much … [Read more...] about Why is my heart rate on the trainer different than in an outdoor race?
QUESTION: How do I know what size tube I need for my bike? I bought a road bike used, and I need a new tube. A friend told me to look on the sidewall of the tire but there are a lot of numbers on there, so which one do I use? —Pat R. RBR’S STAN PURDUM REPLIES: The very first thing to determine is whether you actually need a tube. Many bikes produced in recent years have … [Read more...] about How do I know what size tube I need for my bike?