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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AJA #43: CRR/CDA and Hookless plus The Magnus Effect
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1:00:05We 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 ei…
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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…
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The Marginal — and maximal — gains of a great bike fit
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55:31Behind 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…
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From Running to Riding to RED-S and Beyond with Cécile Lejeune
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56:37Cécile 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 …
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AJA #41: Hard water, hard jobs, and hard to get
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59:41Fatty 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…
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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 …
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Levi Leipheimer & Melisa Rollins: The Growler from Pro and RD perspectives
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39:51We'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.…
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AJA 40: How will new tariffs affect Silca, bike retailers, and customers?
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1:03:06We 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.…
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The Meteoric Rise of 2024 Unbound Champ Rosa Klöser
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58:282024 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.
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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.
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TrainerRoad's Jonathan Lee puts the "smart" in smart trainers
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55:06Jonathan 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…
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AJA #39: Short cranks, bar tape and tandems
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55:26Short 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, …
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Sofia Gomez Villafane: Making a Statement & Backing It Up
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56:25
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56:25We 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 t…
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AJA #38: Waxing Long, Waxing Cold, and Avoiding Speed Wobbles, and Taping to be Aero
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57:08The 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 …
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Tinker & Test: Chase Wark Brings Innovation (and hugs and hotdish) to Pro Cycling
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55:47
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55:47Chase 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 eq…
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AJA #37: Oval Chainrings, Squeaky Wheels, and Everesting Hypotheticals
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52:31If the premise of these Q&A episodes is that you can Ask Josh Anything, and we continue asking questions forever, shouldn't we really change the name of this series to "Ask Josh Everything?" The answer to that question is, of course, "it depends." In this installment, Josh addresses the surprisingly contentious oval chainring, speculates on why a s…
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Marginal Gains Scorecard with Dylan Johnson
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1:05:09Dylan 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
52:35
52:35
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52:35Is 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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58:00Zwift 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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59:53Bryan 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
51:32
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51:32We'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
56:22
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56:22At 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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56:53Gravel 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
43:27
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43:27Tony 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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