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 in the position of being the PSI bartender and cutting pressure-thirsty riders off. And that's just for starters. We also get into group ride marginal gains, changing pressure prescriptions for worn tires, whether 3D-printed Ti quicklinks should be a thing, the likely aero effects of Tadej's six-figure watch, and more. Enjoy this packed episode of Marginal Gains!

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 roads, Amy raced on tarmac. She was a pro roadie with a short but successful career. And before road racing, Amy was in high finance. Josh and Hottie talk to Amy about her days in the pro peloton, how her business education informs her work as a race promoter, and Josh and Amy have a college reunion of sorts.

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 here: we brought way more questions to this conversation than Josh had time to answer, and at some point during the recording, we realized we weren't recording "The Wind Tunnel Episode;" we were recording, "The Wind Tunnel Series, Part 1." Which means that if you've got quesstions about wind tunnels, now is the time to ask: call or text us at 317-343-4506.

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 market. 

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.

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, clothes, and a computer to the office as we commute by bike, how can we be more aero? Josh bravely answers all these questions...and for one of them, even does so definitively. Don't miss this astonishing episode of Ask Josh Anything!

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.

NOTE: A prior version of this episode gets cut off partway through the episode. If it shows in your podcast feed, please skip it and listen to this version instead.

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 waxing and finding the right tire pressure. We talk with Russ on how he went from 2-packs a day to two wheels, the search for the right gearing, wheel size, the rebound of the road bike, Aluminum’s comeback, his love of Marginal Gains and knowing when they apply to him.

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 and a landscape that blows the mind. Rob takes us through the unique challenges to body and bike this race presented. He talks about trying to scarf  down a jumbo size bag of chips, getting hit by birds, using Jensie’s voice to push through the pain and how a fresh chamois is a marginal gain…. 

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 collective eyebrows at the new 750d wheel size, we continue to give credence that we will take on any cycling question and boldly answer, "it depends."

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), this is the episode for you.

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 vet, top-tier mechanic, and Road Brand Manager with Shimano. Enjoy this is deep dive into bike setup, mental marginal gains and thick, sticky mud.

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 well-considered question on calculating tire pressure for full-suspension bikes. 

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 behind them, the low-hanging gains for DH racing, and the problems with racing a 1X setup on the road. And that's not even remotely close to all (even though we could have talked about each of these questions for a full hour).

For Silca’s E-commerce manager, Travis  Verhoff, the 2023 edition of Unbound has been a bit of an ongoing science project. In this episode of Marginal Gains, we dig into Travis' expectations, last-minute changes, and key learnings from this experiment...and after all is said and done, what he would change and whether he'd ever race this monster again.

You've no doubt heard Josh mention Slowtwitch.com many times on this show.  It's one of the key places he goes to share ideas and get feedback. But Slowtwitch is more than just a place. It’s a person too. The site was founded by Dan Empfield in 1999, and remains publisher to this day. 

But before Slowtwitch even existed, Dan was a competitor. He did his first Triathlon in 1978 and competed in the first Ironman Kona in 1981. You may also know Dan as the man behind Quintana Roo. That stack and reach thing we all use now: that came from Dan’s work. We get into all of that and more with our guest this episode:Tri Hall of Famer, Slowtwitch founder and Publisher Dan Empfield 

It's an Ask Josh Anything episode! We talk about The Rule of 105, the extent to which "bigger is better" is true for fairings, whether tire inserts need to be factored in when using air pressure calculators, why you might get conflicting recommendations from different air pressure calculators, how many watts a slow-turning old derailleur cog might cost you, the challenges a hot day might bring to your waxed chain, and more. So much more. Some people might say too much more, but we are not those people, and we're betting you are not either. Don't miss this episode, and keep your questions coming!

Silca's own Travis Verhoff has an unusual work assignment: plan, train for, and execute the most Marginal Gain-y Unbound possible. If you've been following the Silca YouTube channel, you've been tracking his progress. In this episode, we catch up with his bike setup, key learnings and surprises from time in the wind tunnel, using the Chung method on course to select tire pressure just days before the race, his nutrition, and a lot more. If you're a nerd about Marginal Gains (and we know you are), do not miss this episode about putting theory into practice.

Amanda Nauman has one of the most disarming nicknames in all of cycling: she is affectionately known as Panda. But make no mistake: behind the woman named after a docile creature is a fearless person, both on and off the bike. Amanda has taken on the toughest gravel events — and the toughest questions — that face our sport. She has won Unbound Gravel twice and taken 2nd in the 350 XL. She has won Mid South and BWR San Diego and is the 5X-champ at Rock Cobbler in Bakersfield, CA. Amanda is co-host of the Groadio Podcast and she sits on the Gravel Cycling Hall of Fame Advisory Board. She is co-founder of the Mammoth Tuff Gravel Race, puts on gravel camps, competed in the first LIfe Time Grand Prix, and has a demanding day job. Somehow all of that is packed into one person. We guarantee you'll love this conversation with the fastest and fiercest Panda you will ever meet.

Josh and USAC CEO Brendan Quirk share a love of the history of cycling, as well as a deepseated desire to move it forward. In this wide-ranging conversation, Josh and Brendan talk about their love of bike racing, wind tunnels, and the complexities of cycling product development and retailing. Most importantly, they have a candid discussion of the difficult position USAC is in and Brendan's plan to move it forward.

With three Gravel World's Championships, an Unbound victory, an induction into the Gravel Hall of Fame, a bronze medal in UCI Worlds Road Championship TTT, a win in the Tour de San Luis, and more than a decade as a pro, Alison Tetrick has proved she's among the best in the world on pavement and dirt. As it turns out, she's also right at the top in analysis of the current women's pro peloton. In this episode, Ali (as her friends call her) details who to watch this year, talks about the overall health of women's racing, equity, parity, and — of course — marginal gains.

It's a no-topics-barred Ask-Josh-Anything episode of Marginal Gains, and (as usual) Hottie and Fatty get their own burning questions to the front of the line. Hottie desperately wants to talk about F1 porpoising and its connection to Hopf bifurcation. Josh accomodates. Fatty overheard a rocket scientist proclaim he wouldn't trust a repaired carbon fiber hardtail for technical mountain biking and now Fatty's scared about whether he's OK to ride. Josh reassures Fatty with the sage advice that "it depends." We then dig into actual listener questions about what kind of Ti alloy Silca uses when 3D printing, the pros and cons of 1X vs 2X drivetrain setups, and...how one might marginal gain a triple stroller in order to set a world record 10K pushing this pram. As always, this AJA episode's a great mix of thoughtful, serious, practical and silly. Don't miss it!

In the early and mid 2010s, Gwen had a winning streak that astonished both the Tri world and the sports world at large. She won an unmatched 13 races in a row, capped off with Olympic gold in Rio. She then stepped away to focus on running for a time, but is now back, again with a focus on the Olympics. We catch up with Gwen between training sessions and taking care of her kids to talk about what is driving her as she begins chapter two of her amazing career.

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 Vervecken. It's an understatement to say he knows drop bars and dirt. He is. We talk to Erwin about how the series began, the lack of a major presence in the US, how to get into Worlds, UCI rules and Gravel, and we throw in some Cross questions.

Alex Dowsett has been a Marginal Gainer since he started riding with his dad on the roads of his hometown in England. He quickly became a time trialist and then pro, riding for a handful of teams and racking up more than a dozen wins before finally hanging up his wheels after the 2022 season. But the fact that Alex became a sportsman at all is a major win. You will not want to miss this great conversation with an amazing Marginal Gainer!

You may know her by her nickname in Bicycling Magazine (The Fit Chick) or you may know her by others' names (she's ghost-written and co-written scores of books), but you almost certainly know her work in one way or another: Selene Yeager is as well-respected as she is prolific in the cycling world. And now she's the host of "Press Play Not Pause" -- a popular podcast that brings candor and wisdom to menopausal athletes. No matter what kind of athlete you are, you do not want to miss this episode of Marginal Gains!

Michael Marckx — the head of the Belgian Waffle Ride series — has guided clothing brands, sunglass companies and magazines on his way to making his dream classic. This is a great conversation about vision, instinct, survival, the future of american racing...and if you’re looking to do a Belgian Waffle Ride, there are some tips in here for you too.

Anyone who's ever spent any time watching Dylan Johnson's popular Youtube channel could be forgiven for thinking it and the Marginal Gains show were separated at birth. In this episode, we get together with this incredibly smart, incredibly fast cyclist to talk about not just his achievements in racing, but the little things he does to beat the competitoin. Don't miss this episode!

It's always fun to find out what questions are going to really catch Josh's attention. In this episode, we talk about tiny marginal gains, postulate why mountain bikes are not particularly aero, follow up on the best gases to fill your tires (and why), and much more. But the question that really grabbed Josh has to do with a crazy hypothetical: how would you optimize your bike and track for an hour record attempt...on the moon? It's an intriguing question and one we're far from done with. We think you'll love this episode of Ask Josh Anything!

Alexey Vermeulen is exhausted. He deserves to be, having just taken a hard-fought podium spot in the Life Time Grand Prix. And wins in multiple BWR races. And producing a show where he mentors novice cyclists. And much more. But he still found time — hours after flying home from Big Sugar and hours before he flies out to his next event — to get together with the Marginal Gains crew to talk about how he doesn't just survive in this demanding environment, but actually thrives. Don't miss this episode of Marginal Gains!

We rely on Marginal Gains listeners to provide intelligent and provocative questions, and as always, our listeners do not disappoint. In this Ask Josh Anything episode, we re-open the question of hour record attempts, this time considering pros and cons of a negative-split effort. We talk about Nitrogen and its merits of using it instead of air for tires with sealant. We talk about the aerodynamic penalty of tucking your glasses into your helmet vents. Plus tire temperature talk, cyclocross marginal gain tips, and why most BMX bikes don't race tubeless. 

Jeremiah Bishop proclaims he is a "nerd in recovery," but we know better. Bishop was a crucial member of 2015's Team Topeak-Ergon, which set a record Leadville 100 time that stands to this day. And this was not just a story of strong legs and lungs; it was a Marginal Gains story, through and through. Whether you race road, mixed surface, or dirt, this is a conversation you will not want to miss.

After a nice long summer break, we're back with more questions for Josh. Josh, Hottie and Fatty met IRL in Leadville last month, so we spend a good chunk of this episode talking about the LT100 MTB race -- altitude, aerodynamic speed minimums, and other marginal gains available two miles above sea level. We also make time to talk about Dan Bigham's amazing new hour record, aerometers, and the story behind the new Gravelero pump. Don't miss this episode!

Phil Gaimon takes on serious topics, but he doesn’t take himself too seriously. He uses his social media to document is KOMs and occasional Everesting attempts, but also takes us on interesting rides and shows us how cyclists and motorists can get along on the same piece of tarmac. Phil is a fantastic climber, an advocate, a humorist, a Silca athlete and a newlywed. It's a pleasure to have him join us on Marginal Gains

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. 

Josh answers a batch of listener questions, from the extremely practical to the fascinatingly hypothetical. Are pros flatting more than they used to? Has the balance between strong and light swung too far toward light? How do you make your hydration as aero as possible? What air pressure should be used for the back wheels on a competitive trike? And how good would electronic / wireless brakes have to be before you could trust them? We get into all this and more in this Ask Josh Anything episode of Marginal Gains!

Dan Bigham's job title — Performance Engineer — for Team Ineos really undersells his value. Dan is a through-and-through marginal gainer, with a special gift for figuring out how to beat the wind. And as such, he's the perfect guest for a one-on-one chat with Josh. Don't miss this episode of Marginal Gains!

What if CDA measuring were brought to the masses via some sort of attachable device? Michael Liberzon—an engineer and triathlete coach—has field tested an aerometer and researched several others. In this episode, we talk with Michael to get an overview of where we are with aerometers and whether real-time CDA will ever become a thing.

Putting 50 years of Tom Ritchey's history and knowledge would be nearly impossible, so for this conversation, we focus on some of Tom’s game-changing ideas and innovations, as well as how he got there. You’ll also hear some great stories, a little family history, and how this pioneer's ethos turned into one of the world's most-respected bike brands.

Hopefully you've seen Ashton’s gutsy world record effort and his killer performance for the rainbow jersey. Now Josh gets the inside scoop on what it took to succeed at both, even as his partner is working on going to outer space.

If you're looking for something to make you feel good about something happening in the world right now, you have found the right episode. Josh talks with Dan Craven — Olympian and owner of Onguza Bikes (onguza.com): beautiful steel bikes, handmade in Namibia and shipping across the world. This is an inspiring episode of Marginal Gains you will not want to miss.

Silca has a new tubeless tire sealant out, and Hottie and Fatty have some questions about it. A whole hour's-worth of questions, in fact. From the recycling aspect of it to setup strategies to keeping carbon fiber from clogging your valve stem, this is the episode that shows what happens when Josh starts thinking about plugging up holes.

Part 2 of our chat with Andy Hampsten picks up right where we left off in part 1: With Hampsten in the Maglia Rosa. Andy finishes this incredible story, and from there we get into a wide range of topics with this iconic cyclist: Cinghiale Tours, Titanium bikes, Eddy Merckx, "Huffy" bikes, and much more. Don't miss this issue of Marginal Gains!

Amity Rockwell is not afraid to speak her mind, which makes for a fast, fun, and thoughtful conversation with this Unbound champ. We talk diversity, equity, social media and most recently, plans for a Gravel Hall of Fame. You will not want to miss this episode!

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

Possibly the nicest living cycling legend, the one and only Andy Hampsten joins Josh to talk both about the early days of his career and to give an account of what is easily one of the most extraordinary performances ever in cycling: Andy's unbelievable day on the Gavia in the 1988 Giro D' Italia.

If you saw Paris Roubaix this year, there’s a good chance you saw our guest — Candadian Road Champ Guillaume Boivin — in action. And thanks to the laws of supply and demand (Guillaume needed a chain, and Hottie had a Silca Hot-Waxed Chain available), we were able to nab this interview with this road star about how "G" (as his Istrael StartUp Nation teammates call him) started biking, his fixation on bike tech, and his very intense day at Paris Roubaix.

If you are a student of cycling — and the fact that you listen to this show means you are — you have no doubt read a fair amount of Lennard Zinn’s work, from books to being the tech editor at VeloNews, Zinn has written thousands of pages about cycling. And in this episode, he joins Josh to talk about his days as a skier, how he got talked into writing books, Hopf Bifurcation and bike shimmy, rolling resistance and Lennard's latest venture: E-bikes. We guarantee you’re going to love this thinking cyclists’ conversation.

 A wheel builder wants Josh's thoughts on the difference between road and track rims. A soon-to-be-worldtour-racing pro wants to know whether the sluggishness he senses in tubeless tires is all in his head. A gravel racer wants to know how to justify the purchase of a second set of wheels to his wife. And of course, the saga of hypotheticals continues as a listener asks what Josh would do if he were suddenly the Tech Director of the UCI.

As always, it's a wide-ranging episode of Marginal Gains...and you will not want to miss it.