Newsletter Issue No. 1231
July 2, 2026
Quick Review: Prungo FluxGo Red Light Therapy Module
Jim’s Tech Talk
By Jim Langley
I’m not a doctor and I have no knowledge of the science or studies behind red light therapy. I also haven’t done any research to either back up the claims of red light therapy proponents or dispel them.
What I can tell you is that I personally tried this company-provided sample Prungo FluxGo Red Light Therapy Module (RLT300) that I’m reviewing here and it was effective on the tennis-elbow pain I suffer from (my second sport is table tennis). However, it was not effective on my bone-on-bone knee pain. In fairness to this product, doctors have told me that the only cure for that pain is having my knees replaced. Read more.
Rain on a Ride: Why Cause and Effect Is All Wet
By Kevin Kolodziejski
And Two Health Studies That Suggest the Same
You’d think cause and effect is a simple concept. If you’re out on a ride and it begins to rain, for instance, the best bike handling skills in the world don’t mean squat. It doesn’t matter if you’re Wout van Aert, Mathieu van der Poel, or Peter Sagan or for that matter.
There’s no way in the world you’re dodging those water droplets. No how. No way. You get wet. There’s no doubt about it.
What is in doubt is what happens next. Read more.
Why Every Masters Cyclist Needs Strength Training
By Ric Stern
In a previous column we discussed how training harder can help maintain or improve fitness as we age. Today I want to take one of the things I touched on there — strength training — and dig into it properly: how it helps you as a cyclist (or triathlete, or runner), how it helps you as a regular person who doesn’t just sit on the couch, and how it helps with both ageing and health. Read more.
From Pittsburgh to Harpers Ferry: My GAP and C&O Trail Adventure
By Sheri Rosenbaum
For three years, the famous Great Allegheny Passage (GAP) and the Chesapeake & Ohio (C&O) Canal Towpath have been on my radar. From Pittsburgh to Washington, D.C., hundreds of miles of car-free riding, I hemmed and hawed over planning my own bikepacking adventure. Go solo? Book a tour outfitter? Some hybrid? I spent an embarrassing amount of time deliberating. Read more.
Is testosterone replacement therapy acceptable for recreational cycling?
Question: Is testosterone replacement therapy acceptable for recreational cycling? —Allen J.
RBR’S STAN PURDUM REPLIES: I assume you specified “recreational cycling” since in professional competitive cycling, using testosterone is considered an anti-doping rule violation. Cycling authorities strictly prohibit its use, and age-related decline in one’s testosterone level is not grounds for a medical exemption. Read more.
Other Cool Things to Read
PEZ Cycling: A quietly affecting short documentary about the 90-year-old who still rides for the sheer joy of it
France 24: Tour de France ‘ready to adapt’ amid extreme heatwave
Bicycling Australia: NBC’s Phil Liggett interview is a must-watch for cycling fans
Road.cc: Continental Dubnital 50mm gravel tire
Question of the Week
Do you follow pro bicycle racing?
Most Clicked Last Week
You Can Raise Your VO2max at Any Age. Here’s How.
End Notes
