The Marginal Gains Podcast, presented by Silca is the show that makes a big deal about the little things, and how those little things...can be a big deal. Josh Poertner of Silca, along with Hottie and Fatty, talk about all aspects of cycling — design, manufacturing, marketing, riding, racing, management and more, all from a thoughtful perspective. It's a podcast for the thinking cyclist.
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Marginal Gains Scorecard with Dylan Johnson
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Dylan Johnson is back with a follow up to the testing he and Josh did in the spring. The race season started with the two of them in the wind tunnel looking for Marginal Gains that could be used in the Lifetime Grand Prix and the other off-road races Dylan had on his calendar. Dylan reports back with his "on-course" experience and a look at how oth…
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AJA #36: Pre-wax prep, traction problems, and aero for the flexibility-challenged
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Is it a coincidence that Fatty picked all the questions for this episode, and that all the questions in this episode are topics Fatty finds either interesting or personally relevant? Probably not! But if you're wondering if chain waxing makes sense for dusty trail conditions, are curious how much (if any) the outside temperature should affect your …
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Zwift & Marginal Gains, with Zwift Product VP Mark Cote
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Zwift VP of Product Mark Cote joins the Marginal Gains crew, picking up where we left off in our last conversation: the wind tunnel. This time, his time in the tunnel is all about future-looking features for Zwift, and this peek at what's to come is not to be missed. From there we talk about everything in the present and future state of Zwift and M…
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Paralympic Track Racer Bryan Larsen: Excelling after Injury
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Bryan Larsen tells us his only real talent is that he's too dumb to quit. We strongly disagree, but take his point: Bryan is no quitter. In this episode, Bryan talks us through how he took the constraints given to him through birth and accident, and used passion, perseverence, and a love of marginal gains to reinvent his racing career.…
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AJA 35: Hookless rims & PSI limits, tire pressure on worn tires, Ti quicklinks, CRR on wet roads
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We're so excited to kick this 35th episode of our "Ask Josh Anything" series with a discussion of the announcement of Silca's partnership with Visma Lease-A-Bike. Fatty does his level best to pitch having Hottie in the team car, hot-waxing on the move. We move from there to the challenges of high pressure with hookless rims, and how it has put Josh…
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Gravel Racing is moving face and Amy Charity is one of the movers. Amy is the founder of SBT GRVL in Steamboat Springs, Colorado. The race started on the back of a napkin in 2018 and has quickly become one of the premiere off-road events in the U.S. After a few short years of success, Amy expanded SBT to Europe and Australia. But before the dirt ro…
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AJA 34: Wind tunnels, cargo bibs, ti printing, and axle handles
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At this point we've lost track on how many episodes we've dedicated to wind tunnels, but this is at least partially one of them. We've also got great questions about Fatty's new Firefly and the Ti-printed parts Silca created for it, a classic question on the best body position for riding in a strong tailwind, axle handle alignment, and a remarkably…
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Erwin Vervecken and the UCI Global Gravel Series
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Gravel Racing has gone global, and governing bodies have gotten involved. The UCI is now in its third year of putting on its Gravel World Series. It has more than two dozen races on four continents. Instead of running the series itself, the UCI has turn to a sports group and the point person in that group is three-time Cyclocross World Champ Erwin …
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Time's Tony Karklins and Josh Talk Bike Shops and Carbon Manufacturing
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Tony Karklins is the founder of Allied Cycle, is currently the founder of Time, and has deep knowledge of all aspects of the cycling industry, all the way back to when as a teenager he owned a bike shop. He's the perfect match for a conversation with Josh about bike business, manufacturing, racing and more.…
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John Cobb may be best known for his bike saddles, but his experience and innovation go much deeper. John may be the first person to take a bike to the wind tunnel, and is likely the only person to crank up the tunnel to 70mph...with a rider in it. Enjoy this great episode with a cycling innovator
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Kimo Seymour and the Life Time Grand Prix
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Life Time puts on what is arguably the biggest and most important pro bike racing series in the US: The Life Time Grand Prix. And one man is in chage of it all: Kimo Seymour. Fatty and Hottie talk with Kimo changes in the race, the "Call of a Life Time" series, aerobars, Keegan's Swenson's chances for dominating the event for a third year running, …
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Our recent wind tunnel episodes have triggered a LOT of aero questions from our listeners, and Josh -- with hand hovering over the "It Depends" button -- takes them on. From IRL Burrito Powerups (IYKYK) to the StripChip and the Chain Waxing System to aero chainrings to leg hair stubble as a potential aero advantage to shoe aerodynamics, Josh will —…
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Ask Josh Some More About Wind Tunnels (Wind Tunnels Series Part 3)
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Josh answers more of Fatty & Hottie's pressing questions about the surprises people are in for when visiting a wind tunnel for the first time, what happens when key learnings from a wind tunnel session are ignored, how often follow-up questions triggered by a wind tunnel session are actually followed up on, whether it's worth it to bring anyone but…
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Marginal Gains And Windtunnels, Part 2: An Interview with Mark Cote
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An argument can be made that Mark Cote is the father of the Specialized Wind Tunnel. During his tenure at the Big S, he convinced the powers that be that the Big S needed its own wind tunnel — an amazing story Mark shares with Josh. Enjoy this deep dive into Mark's backstory and conversation between Mark and Josh as they swap stories on how they've…
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Ask Josh Anything...About Wind Tunnels (Part 1)
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Josh's experiences in wind tunnels have come up in dozens of episodes of Marginal Gains, and we always find ourselves with more questions. In this episode, we're finally giving ourselves permission to ask them, from the essentials of using a wind tunnel to a day in the life before, during, and after testing in a windtunnel. Look, we'll be honest he…
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Darren Murphy: Developing and tuning high-end suspension products
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When it comes to bikes, Josh is usually the smartest person in the room. But Josh will tell you, when the topic turns to mountain bikes and suspension, Josh turns to Darren Murphy of Push Industries. Josh and Darren talk about Darren's journey in the industry, as well as a dive into how advanced bike products are developed, tested and brought to ma…
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Data and Downhill Racing with Nick Lester
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With World Cup races being decided by tenths or even hundredths of a second, many racers and teams are now using sensors and data acquisition to dial their setups. Our guest this show is a leader in this area: Nick Lester and Josh get deep into how Nick and his Downamics team help the world's fastest downhillers get the most out of their suspension…
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AJA #32: Marginal Gains for Commuters, Big Riders, and Motorcycle Chains
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Would your motorcycle chain benefit from an afternoon in the chain wax spa? If you use a gel packet as an improvised tire boot, how much will it affect your bike's performance? When using the Rule of 105, should you be using the rim width at the brake track, or the widest point of the rim as your measurement? And for those of us carrying lunch, clo…
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Aerocoach's business is to help athletes improve their aerodynamic performance, through testing, coaching, and equipment. Josh and Xavier Disley get into a wide-ranging discussion of aerosensors, hype vs data, the need for wind tunnel standards, and so much more. This is an in-the-weeds episode you Marginal Gainer supernerds will not want to miss. …
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Russ Roca - founder and host of the YouTube Channel the Path Less Pedaled - is our guest. The Path Less Pedaled has become a place to learn about the non-competitive side of the cycling world . Russ has produced hundreds of videos that focus on using bikes to carry stuff, explore, cruise, travel, ride comfortably and yes he has a couple on chain wa…
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Rob Britton is an accomplished pro road cyclist who has turned to the off-road scene in the second half of his career. He’s been doing the Lifetime Grand Prix and other mass start events but he is also taking on ultra endurance challenges. This summer it was an event called Badlands: Longer than Unbound XL, more climbing than an Everest Challenge a…
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AJA 31: Chain Guards, Speed Wobble, and Why We Can't Have Nice Things
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Josh, Hottie, and Fatty take on your questions in this, our 101st episode of the Marginal Gains Podcast (we forgot to check that we hit 100 episodes -- and 1,000,000 listens -- last time). From contemplating the aerodynamic benefits of chain guards to analyzing terrifying moments of physics in action when riding a high speed descent, to raising our…
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The Stromm Track Bike: It's All About the Marginal Gains
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Industry legends Dave Koesel and Stephen Doll join Josh for a discussion about the Stromm track bike, a frame and fork aiming to take advantage of recent UCI tube shape restrictions being lifted. If you love wind tunnels, marginal gains, and engineers getting into the weeds with other engineers (and let's face it, we know you love all these things)…
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Kristen & Nick Legan: Mud, Mayhem, & Marginal Gains
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If you think the stories you've heard about the 2023 Unbound are crazy, wait 'til you hear Kristen Legan's story of her XL win. She focused on this race this year, and her preparation and dedication will resonate with any endurance Margingal Gainer. Kristen's joined in this episode by Nick Legan: author of the popular book Gravel Cycling, Unbound v…
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AJA 30: Debunking the Valve Stem Location Myth
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We take our mission of making a big deal about the little things very seriously in this episode, where we talk about whether there's any actual basis for the superstition behind where you rotate the wheel to before inflating a tire. We then move to the admittedly more pragmatic questions of how much of a draft an aero rider provides to the riders b…
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