It feels like now more than ever it is important to find sources of information and reporting that are trustworthy. It used to be fairly easy: subscribe to a credible outlet and trust that said newspaper or magazine would have guardrails in place to get it right and to exercise fairness. As the internet and social media became the predominant sources we rely on, a lot of those guardrails were knocked down. It could be argued that the system in place now is more democratic. More wide open. More v...
Apr 14, 2026•1 hr 5 min
Josh has spoken on many occasions about his time with Zipp. The engineering. The R&D. The wins. The fails. Josh was part of a team that changed the scene, both for pro and amateur racers. At the head of that team was Andy Ording. Andy took over Zipp from Leigh Sargent in 1998 and guided it through its glory days that Josh is so fond of. Andy's journey to carbon wheels is far from linear. A native of South Africa, he eventually found his way to the states via motorcycles. Andy's strengths are...
Mar 23, 2026•1 hr 2 min
Fatty drops a bombshell: he's turning 60 and attempting an Everesting challenge this June — and he needs Josh and Hottie to marginal-gain every aspect of the ride. From course selection and bike setup to tire choice, chain wax strategy, pacing by heart rate, and why a leaf blower might be his secret weapon, the crew breaks down how to get a self-described "card-carrying AARP member with a paunch" up 29,029 feet of climbing on a decade-old bike.
Mar 09, 2026•1 hr
Most of us hardly give those water bottles in our cages a second thought. It's plastic. It's there. It's got what we need. But in the late 20-teens, Carina Hamel and her partner started giving those bidons and second thought. And a third. And a fourth. And like a lot of new ideas, they thought, "There's got to be a better way." Their critical thinking led them to develop Bivo Bottles: stainless steel bottles that fit properly in bike cages. Since late 2020, Bivo has been trying to convince cycli...
Feb 23, 2026•50 min
Josh answers listener questions about essential race-day gear, from what to pack for Cape Epic to whether digital torque wrenches are worth the beeping. We into Lifetime's controversial drop bar ban at Leadville, exploring whether safety concerns justify the change and what aero options remain for marginal gainers.
Feb 09, 2026•47 min
For most of us getting into a wind tunnel is but a dream. Tunnels are hard to find and harder to afford. As an alternative Josh has recommended the Chung Method. It's proven yet it does take some expertise to get right. What if there were something in the middle? Something that is more accessible and less expensive than a wind tunnel yet doesn't require the hours of commitment and trial and error of field testing? Our guest believes he has just that. AiRO may sound like a company that is trying ...
Jan 21, 2026•1 hr 3 min
This Ask Josh Anything grab-bag starts with Tucson's new aluminum velodrome, evolves (devolves?) into altitude hacks for hour records, "no-rules" speed dreams, and holiday gift picks. From buying a kid's first bike (and why chain waxing might be the cleanest parenting win) to ESG-minded shop habits, Roubaix wheel diameter fever dreams to, aero brake-hose routing, and the Clik Valve debate—this episode covers the weird, practical, and wildly opinionated. Happy Holidays!
Dec 22, 2025•58 min
Fatty sits down with 2024 Leadville champion (and his daughter) Melisa Rollins to discuss her meteoric rise from riding borrowed bikes to the professional peloton. Joined by fitter Barry Anderson, they dig into the biomechanical challenges of world-class power, the dangers of athletic stoicism, and the chaotic reality of stage racing in Africa.
Dec 08, 2025•58 min
Josh tackles why we're still pinning race numbers instead of printing them on jerseys, then dives into the tech story behind Silca's translucent TPU tubes. We talk about real-world marginal gains for everyday riders, and Fatty's recommendations for indoor training setups. Last but not least, you do NOT want to miss Josh's unfiltered take on the UCI–SRAM 10-tooth cog controversy.
Nov 07, 2025•56 min
We rarely chase trends or product announcements on the Marginal Gains Podcast. The news of the day we mostly leave to other shows. So allow us while we make an exception to our normal behavior and take a stab at the 32 inch wheel. The wheel size is not the new thing here. It's the tire that's creating some buzz. A viable, tubeless mountain bike tire to be precise. When Maxxis started showing its 32 inch Aspen, bike builders took notice. Some fired up their CAD programs to see if they could make ...
Oct 23, 2025•1 hr 2 min
Hear why that "psst" when you pull the chuck is just hose air (not lost PSI), how to set smarter pressures for tandems and "big-butt" weight splits using a bathroom scale, and what tread actually grips on loose-over-hard. Josh also demystifies analog vs. digital gauge accuracy (and drift) and tackles the carbon-on-the-cheap question—when a bargain is fine, and when it's a dentist bill waiting to happen.
Oct 03, 2025•59 min
Marginal Gainers are familiar with Best Bike Split -- the website where using rider data you can forecast a finish time on a specific course. It has been a great tool for years for amateurs and pros alike. Josh has frequently referenced BBS on the show. Fatty and Hottie have discussed it on their Leadville Podcast. But we wanted to know what is under the hood. For that we turn to its founder Ryan Cooper. Before Best Bike Split, Ryan was a lot like us: a competitor with the hopes of going faster....
Sep 22, 2025•1 hr
Josh tackles the fallout from his viral "hookless is a scam" comment, clarifies the real risks and physics behind hookless rims, and dives deep into tire pressures, gauges at altitude, and disc wheel aerodynamics.
Sep 02, 2025•59 min
Australian cycling champ and Grand Prix contender Brendan Johnston shares the races that shaped him, the setbacks that tested him, and an upcoming project that may become his ultimate proving ground.
Aug 18, 2025•1 hr 19 min
Lauren Stephens has been easy to spot in both Road and Gravel events; just look for the stars and stripes. She has won three US titles: two gravel and one road. Oh, but there's so much more to her career. How about more than 30 UCI road race victories? She has twice won the Joe Martin Stage Race, the Tour of the Gila and Unbound 100. Lauren has also raced Track, Time Trials, Mountain Bike and Cyclocross. Not bad for a former high school math teacher who wasn't a serious cyclist until 2008. In ad...
Aug 01, 2025•48 min
We take a look at what has become a dilemma for some Marginal Gains seekers and that is optimizing aero, rolling resistance on a tubeless, hookless rim. Josh has an admittedly unpopular take on the subject. We also get into the aerodymanic idea known as the Magnus Effect. The principle says that a spinning object will develop unequal pressure on either side as it moves throught air. Josh expains how -- if at all -- the Magnus Effect, affects that rotating thing we love; the bicycle wheel. We als...
Jul 11, 2025•1 hr
We know, the title sounds like we're doing an episode about drug paraphernalia, but trust us, it's the (very good) answer to one of many great questions posed to Josh in this latest listener-driven Q&A episode. We get into using the right lube under the right conditions (including super dry moondust mountain biking), aero combos with the Conti Aero 111, TPU tube challenges, and much more. It's a fun and info-packed episode from the show that dares to say, "It depends."
Jun 27, 2025•48 min
Behind every great cyclist is a great bike fit, which means a great bike fitter. Honestly, we're not sure it's possible to overstate the gains — or losses— a bike fit can bring. And a startling number of top pros we've had on this show trust Barry Anderson of Cyclologic, in Scottsdale Arizona. Barry has popped up on our radar numerous times and for numerous reasons recently. We're excited to share Barry's practical guidance on the why, how, and who of a great bike fit.
Jun 09, 2025•56 min
Cécile Lejeune is a rising star in women's pro cycling, but this Frenchwoman (and now Arizonian) is no stranger to speed. With roots in Tri and a number of impressive running records in her native country, Cécile has been challenging herself since the age of 12. A RED-S survivor, Cécile brings an inspiring and candid story to this year's Life Time Grand Prix, where she currently sits in a top-10 ranking. This is even more impressive when you consider that last year she wasn't even accepted into ...
May 20, 2025•57 min
Fatty is obsessed with mini compressors and so jumps the line in this episode of Ask Josh Anything with several questions he has about Silca's new Elettrico series, Silca's innovative, just-released electric mini pump that is available everywhere (except the US) now. We also got some great feedback/pushback on part of Josh's recent FAQ episode, and a novel new product idea involving tap water from Indianapolis. And, as always, so much more.
Apr 30, 2025•1 hr
We are on the ground at Sea Otter chasing Marginal Gains. A top theme at this year's show is something we have been discussing in our episodes: the wider tire revolution. Older XC tires have found new life on gravel race bikes and tire makers are responding. We hear from two major players on the tire side of things. Plus Dylan Johnson weighs in on how widespread the wider tire movement has become at the pointy end of races. We also wadedinto some new terrirotry: bike rack and bag maker Tailfin t...
Apr 18, 2025•1 hr 5 min
We've done plenty of interview episodes before, but this one's a little different. The twist here is we have pro cyclist Melisa Rollins joining as co-host in hopes of improving her chances at Levi Leipheimer's The Growler, a race that boasts the world's largest payout in a one-day race: a $156,000 purse, split evenly among men and women.
Apr 14, 2025•40 min
We had a whole suite of super nerdy and fun questions ready to ask Josh...and we will still ask them, next time. But we also wanted to know Josh's thoughts about how the newly-announced tariffs might affect Silca, the businesses it buys from and sells to, and its customers. The resulting unscripted conversation is a must-listen.
Apr 07, 2025•1 hr 3 min
2024 Unbound Champion Rosa Klöser's trajectory to the top step started with a stolen townie, and has kept surprising —and impressing — ever since. You're going to love this conversation with this analytical, detailed, smart, and fast fellow marginal gainer.
Apr 02, 2025•58 min
This is a little different from most Ask-Josh-Anything episodes. Here, we ask Josh to answer the questions he gets most often. What we got was an insightful hour of experiences, career advice, and thoughts on the culture within pro cycling teams. This is seriously an episode you do NOT want to miss.
Mar 19, 2025•57 min
Jonathan Lee is Communications Director and one of the OG's at TrainerRoad, one of our favorite tools for marginal-gaining our bodies. TrainerRoad is all business (or at best, Type 2 fun) about making you the strongest, fastest version of yourself...or at least, it was that way until recently. Hottie and Fatty talk with Jonathan about TrainerRoad's why, how, and what's next.
Feb 28, 2025•55 min
Short cranks are all the rage right now, and it just wouldn't be right to let this cycling trend go by without asking Josh to weigh in on its actual merits from aero, weight and engineering perspective. We've also got practical answers for your tire inserts and rolling resistance questions, measuring CRR, old-school cables and bar tape strategies, and an inquiry into the compromises tandem and benefits of tandems.
Feb 12, 2025•55 min
We could have talked with Sofia Gomez Villafane for hours about nothing but her head-spinning palmares: Olympian, winner of Lifetime Grand Prix Series in 2023 and 2024, Leadville, twice at Unbound and Sea Otter, Belgian Waffle rides, and so much more. But the fact is, her wins are just the exclamation marks to the powerful voice Sofia is bringing to the sport. Do not miss this smart, instructive and fun interview with the top off-road woman in North American racing.
Jan 27, 2025•56 min
The Marginal Gains crew thought we'd throw a real curveball this episode and make every single question about cycling...and relevant, even. Wacky, huh? We talk about how the Silca Endurance chip might affect your lube schedule, the challenges of riding with a waxed chain in very cold weather , strategies you can use to reduce / remove speed wobbles on your bike, how a racer in the Leadville 100 MTB might make his artificial knee more aero, and much more. Enjoy the show, and send us your own ques...
Jan 13, 2025•57 min
Chase Wark shares his unique journey in the cycling world, from his unconventional bike setups to his passion for community-building through cycling events, Chase's story is one of creativity, resilience, and a deep love for the sport. Josh Poertner and Chase Wark discuss innovative bike setups, aerodynamics, and the importance of tinkering with equipment to gain performance advantages. Enjoy this distinctly midwestern conversation, equal parts innovation, iteration, and post-race hugs and hotdi...
Dec 30, 2024•56 min
