Secrets of Suspension Tuning with Mark Fitzsimmons

Downtime — The Mountain Bike Podcast

Secrets of Suspension Tuning with Mark Fitzsimmons

Mark Fitzsimmons has been shaping how mountain bikes ride for decades. From his early days in customer support to developing cutting-edge suspension at RockShox and FOX, he’s worked with the world’s fastest riders and the best teams in the business.

In this episode, Mark shares hard-earned wisdom on suspension tuning, what really makes suspension work, why building trust with athletes matters, and the habits that lead to long-term success both on and off the bike. Whether you’re chasing podiums or just trying to get your bike feeling dialled, this one’s packed with gold. So it’s time to sit back, hit play and listen to this episode with Mark Fitzsimmons.

You can also watch this episode on YouTube here.

You can follow Mark his tips on LinkedIn here.

Podcast Stuff

Supporting Partners

Insta360

Insta360 have just launched their latest game-changer, the X5. It shoots full 360 video in 8K, with lenses that are more durable than ever, and comes with upgraded audio thanks to a new wind guard and smarter processing. It’s waterproof to 15 metres and can film both a ready-to-share flat video and a fully re-frameable 360 video at the same time.

They also have their Ace Pro 2 action camera which delivers incredible quality footage in a small and simple to use package. With a responsive flip-up touchscreen, amazing low light performance and game changing wind noise reduction, this thing delivers.

Use the code DOWNTIME at the checkout on insta360.com and you’ll get a free helmet chin guard with any X5 or Ace Pro 2 bundle order. That offer runs until the 30th July 2025 and is limited to just 30 free chin mounts, so don’t hang around.

Listener Offers

Downtime listeners can now get 10% off of Stashed Space Rails. Stashed is the ultimate way to sort your bike storage. Their clever design means you can get way more bikes into the same space and easily access whichever one you want to ride that day. If you have 2 or more bikes in your garage, they are definitely worth checking out. Just head to stashedproducts.com/downtime and use the code DOWNTIME at the checkout for 10% off your entire order. And just so you know, we get 10% of the sale too, so it’s a win win.

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I would love it if you were able to support the podcast via a regular Patreon donation. Donations start from as little as £3 per month. That’s less than £1 per episode and less than the price of a take away coffee. Every little counts and these donations will really help me keep the podcast going and hopefully take it to the next level. To help out, head here.

Merch

If you want to support the podcast and represent, then my webstore is the place to head. All products are 100% organic, shipped without plastics, and made with a supply chain that’s using renewable energy. We now also have local manufacture for most products in the US as well as the UK. So check it out now over at downtimepodcast.com/shop.

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On the Downtime Podcast, we speak to athletes, trainers, mechanics, brands and many others, to take us behind the scenes of the world of downhill and enduro mountain biking, inspire you and give you some hints and tips to help you improve your own MTB riding. Give it a listen and we're confident you'll find something to help you go faster and have more fun on your mountain bike! Don't forget to subscribe, give us a review, and follow us on Instagram, Facebook or Twitter to keep up to date with new episodes.

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