Takeaway: For the eighth iteration of its legendary Madone road bike, Trek blended the low weight of the Emonda with the aerodynamics of the seventh-generation Madone. The result is a light, stiff, and fast all-around race bike. While the flagship SLR9 costs over $13,000, base-level Madon SL models start at $3,500.
Price as Tested: $13,500
Weight: 15.3 lbs (Size M, bottle cages, computer mount, no pedals)
Pros
- Sub 800g frame weight (Size M/L) is much lighter then before
- Improved ride quality and comfort
- Simplified headset compatibility
Cons
- Aero bottles are an integral part of Trek's aerodynamic claims for the bike
- Offered in only six frame sizes (down from eight)
When leaked images of the eight-generation Madone first appeared online, there was much speculation that this new road bike was the next generation of Trek’s Émonda lightweight climbing bike. After all, Trek launched the seventh-generation Madone only two years ago, so it seemed logical that the next bike due for an update was the Émonda.
Jordan Roessingh, Director for Road Bikes at Trek, candidly confirmed that the new Madone actually started life as the next Émonda. “We constantly get the same feedback from our pro riders,” Roessingh said. “They tell us that they love how fast the Madone is, but could we make it lighter or they love how light the Émonda is, but could we make it more aero?”
Trek set out to make a more aerodynamic Émonda, and what they ended up with was a bike that had the same frame weight as the Émonda but was as quick as the Madone against the wind.
When your aero bike is as light as your climbing bike, or your climbing bike is as aero as your aero bike, there doesn’t seem to be a point to having two bikes anymore. So, while fans of the Émonda might be sad to see the bike go, it makes way for the return of the Madone as the ultimate road racing bike in Trek’s lineup. And this feels right, given the rich history of the Madone name.
Since it launched in 2003, the Madone name has always designated Trek’s fastest drop-bar race bike. That has meant different things at different points, with older models of the Madone leaning heavily on low weight and high stiffness while more recent models became all-out aero. Now that Trek returns the Madone to a do-it-all role, is it the best road racing bike Trek can make?
After spending the last two months riding the new Madone 8, my short answer is yes.
The new bike delivers the performance I expect from a five-figure top-of-line road bike made by a brand like Trek. For the steep price of entry, you get a bike that manages to be damn near perfect in terms of weight, stiffness, and road manners. And while all of that is important, it would matter little to bike racers (for whom the Madone is explicitly designed) if it wasn’t also fast.
Based on Trek’s provided data and my testing, the new Madone is definitely fast. But that declaration comes with a long list of caveats.
Speed is Aerodynamics In 2024
In 2011, Specialized first told us that “Aero is everything.” Knowing what I know now about the importance of aerodynamics in the context of racing, they certainly weren’t wrong. But marketing slogans are made to be catchy and concise and “Aero is everything until you build a bike that’s really heavy and doesn’t ride all that well. So maybe a bike that prioritizes aerodynamics without sacrificing weight and ride quality would be better,” does not quite roll off the tongue as easily.
Trek claims that the new Madone is as fast as the previous generation and is heaps quicker than the Émonda. The strategy to achieve this aerodynamic performance is called “Full System Foil,” where the bike is viewed not only as a cross-section of its tube shapes but as a much larger airfoil shape that includes the water bottles and wheels.
This isn’t a particularly new or earth-shattering concept. Manufacturers have designed (or at least tested) their frames around specific wheels (usually their own) for a while now. Using water bottles to fill the space between the down tube and the seat tube to smooth the airflow over a frame is also not new. It has been done on time trial and triathlon bikes for years. BMC has done it on their aero-focused time machine road bike since 2018. Cannondale recently introduced aerodynamic water bottles and cages on its all-around race bike, the SuperSix Evo, in 2023.
The cynical reading of what Trek does with the new Madone and its aerodynamic performance claims relative to the previous (and more obviously aerodynamic Madone Gen 7) is that directly comparing the two bikes is not apples-to-apples.
Trek’s claimed figures use a Madone 8 with the brand’s new aero bottles versus a Madone 7 with round bidons. In this comparison, the new Madone (at straighter yaw angles) is slightly faster than the outgoing Madone. At higher yaw angles (beyond 10º), the deeper frame tubes of the Madone 7 make it quicker than the new Madone. And when comparing the new and old Madone, with both bikes using round bottles, the results flip. According to Trek, the Madone 7 is about 1.6 watts more slippery at 22 mph.
It’s also worth dwelling for a moment on the yaw angle differences. My colleague Matt Phillips pointed this out in his review of the Specialized Tarmac SL8, another new bike that balances optimizing aerodynamics, ride comfort, and weight. In that review, Matt points out that a rider’s speed affects the wind angles they encounter. Pro riders naturally encounter more direct (low yaw) wind angles because they (typically) ride much faster than amateur riders. Riders moving at slower average speeds will more likely encounter higher wind angles.
Trek’s aerodynamic claims for the Madone 8 are based on a rider moving at 22 mph. That is more real-world than Specialized data for the Tarmac SL8, which is based on someone moving at 28 mph.
Still, 22 mph is plenty fast for a lot of people. My rides typically average about 18 mph. At slower speeds, where the rider is more likely to encounter higher yaw angles of wind, the previous Madone will likely be faster. Strap the new Aero bottles on it, and it will almost certainly be quicker than the new Madone regardless of the wind derection.
But the gains in the Madone 8’s aerodynamics are not only down to the water bottles. Trek also introduced a new handlebar, which, when tested in isolation (without a rider on the bike), is slower than the previous handlebar. However, as part of the system with a rider on the bike, the new taller and blunter profile measures faster as it helps to smooth the airflow over the rider’s legs.
If I stop being a cycling media cynic for a minute, I can see where Trek comes from in how it designed the new Madone. Sure, there is broad acceptance across cycling to the benefits of aerodynamics, yet despite this, riders still love lightweight and snappy-feeling bicycles. With the design and packaging of the new Madone, Trek can say that the new bike is faster.
However, the issue with judging aerodynamic gains is the numerous “it depends” moments. Most of these depend on how each individual bike is equipped for testing. Using aero bottles for one frame but round ones for another is obvious, but even something less apparent, like a different handlebar shape or a different-sized rider (if you’re testing with a rider), could give different results.
To put it in perspective, Trek claims the new bike is 1.6 watts faster at 22 mph. That’s not nothing. But it’s also fair to point to the basically square downtube of the new Madone and say that Trek perhaps has left some potential aerodynamic gains on the table to make a lighter and better riding bike. And to be perfectly honest, I’m not that upset about it.
New Sizing, Similar Geometry
Long-time Trek fans will remember when the brand offered two different fits on its top-of-the-line road bikes: H1 fit, designed for pro athletes, and H2 for the riding public. This gave riders a choice of stack and reach figures. The H1 and H2 fits were eventually consolidated into what Trek dubbed H1.5. But the H1.5 designation didn’t make a ton of sense (since it referred to a geometry philosophy that no longer existed), so Trek rebranded H1.5 into “Road Race” geometry.
This rebrand comes with Trek changing its numeral sizing (51, 53, 55, etc) to T-shirt sizing (XS, S, M, etc). This is another change that makes sense to me as modern bikes rarely have a tube on them that actually measures close to their designated size number.
The big geometry shake-up with the new Madone is that Trek reduced the bike from eight sizes on the Madone 7 to six. This was accomplished by merging the 52cm and 54cm sizes into a Medium option and the 60cm and 62cm sizes into an Extra Large. Brands often reduce model options at each end of the size spectrum (to the detriment of shorter or taller riders), so it’s unsurprising that Trek merged the 60cm and 62cm. But it surprised me to see the 52cm and 54cm sizes combined.
Looking closer at the two sizes from the previous generation Madone, I was shocked at how close they were to each other. The bikes had only a 3mm difference in reach and an 8mm difference in stack. The new frame size has a few millimeters more stack than the old 54cm and 1mm more reach than the old 52cm.
I’m a rider who often chooses between these two sizes. For example, I’m happy to ride 54cm bikes from Specialized while I opt for 52cm frames from other brands like Enve or a size S from Giant. The new Medium-sized Madone I tested worked very well when paired with a 110mm stem and a zero-offset seatpost.
Still, I expect the merging of two sizes right in the middle of the size range, despite how close they are in practice, will cause some consternation for riders.
Models and Pricing
Trek offers the new Madone in nine complete bike builds and two frameset options. These are split between the more affordable Madone SL and a higher-end Madone SLR. Both bikes share the same frame shape and geometry, but the Madone SL uses a heavier 500 series OCLV carbon compared to the Madone SLR’s 900 series.
All versions of the Madone SL come equipped with a standard two-piece bar and stem. Riders who want the full aero benefits of the new bike will have to buy the aero bottles separately. A single bottle and cage set is $100, with replacement bottles at $25 each.
Four complete Madone SL bikes are offered, starting with the Madone SL 5 ($3,500), which features mechanical shifting using Shimano’s 12-speed 105.
The Madone SL 6 costs $5,500 and comes with a Shimano 105 Di2 groupset and Bontrager Aeolus Elite 35 carbon wheels. There is also a SRAM Rival AXS build of the Madone SL 6, which costs an additional $500.
At the top of the SL range is the Madone SL 7 ($6,500). This model upgrades to a Shimano Ultegra Di2 groupset, plus it uses a carbon handlebar and the deeper Bontrager Aeolus Pro 51 carbon wheels.
Next on the price pyramid is the Madone SLR 7 ($9,000). It features the same build kit as the SL 7, but for the extra $2,500, riders get the lighter-weight SLR frame, the aero bottles, nicer tires, and the one-piece RSL bar/stem. For $500 more, riders can opt for a SRAM Force AXS version of the same bike.
Finally, there are the SLR 9 flagship options. Riders can choose a Shimano Dura-Ace Di2 bike for $13,000 or one with the new SRAM Red AXS for $13,500.
Riders looking to do a frame-up build can pick between the Madone SL frameset, which costs $3,000, and the Madone SLR frameset at $6,000.
Ride Impressions
I don’t think there’s any point in dancing around it, Trek made a good bike with the latest version of the Madone—which is hardly a surprise. When you’re twenty-one years into developing a platform and are on the eighth version of it, I’m not going to say it’s impossible to make it bad, but it’s certainly difficult. This expertise, combined with wider tires that make current road racing bikes ride more comfortably than bikes from only a few years prior, I expected the new Madone to impress. And it delivered.
The new Madone is a big step forward from the previous generation Madone 7 in its enjoyability. Stomp on the pedals and the new Madone has plenty of snap, but crucially, it is vastly superior in seated comfort compared to the 7.
I complained about Trek shipping the previous Madone with 25mm wide tires, which honestly felt insane to me back in 2022 when I tested the bike. Thankfully, the new Madone ships with 28mm rubber that measures 29.5mm on the Bontrager Aeolus RSL 51 wheels. The wider tires certainly help with how pleasant the new bike feels on the road, but you still wouldn’t mistake the Madone for an endurance bike. This race bike provides excellent road feedback to the rider. You don’t float over the road on the new Madone, but it doesn’t beat you up while riding.
The next big thing I felt about the new Madone was its low weight. I clearly remember testing the Madone 7 (only two years ago), that top-level build with SRAM Red and the same wheels was 16.2 pounds (without pedals, cages, or a computer mount). The new Madone 8 I rode is nearly a pound lighter at 15.3 lbs. And impressively, that weight includes the aero bottle cages and a computer mount (but not pedals).
While we know that, empirically, bike weight has a much smaller impact on performance than we think, a lighter bike still feels awesome. When a brand charges five figures for a road bike, it should be really close to, if not below, the UCI minimum bike weight of 14.99 lbs. The previous generation Madone was never in danger of falling under that weight limit, but the new Madone should comfortably hit it with a lighter set of wheels and one or two other weight weenie changes. The Madone’s low weight and stiffness make it a fun bike to ride uphill.
Thankfully, Trek did not change the Madone 8’s handling compared to the previous version. It’s still an exceptionally well-balanced bike. Racers will find steering that, while rapid, isn’t a handful. The Madone is very stable at speed while remaining exceptionally reactive to rider inputs.
I logged quite a few miles on the new Madone and while I know that sensations are not statistics, the new Madone feels very fast. On a flat and fast weekly group ride I do, I found myself rolling off the front of the group when it was my turn to take a pull at the front. Despite the lack of deep aero tubes, the new Madone certainly has the sensation of speed that the best aero race bikes often possess. It’s best described as feeling like you’re riding with a permanent tailwind.
Conclusions on the New Madone
Combining two bikes into one is a surefire way to leave some cyclists wanting more. Some will want a more aerodynamic Madone. While others will rightly point out that Trek could have made an even lighter bike. However, the demands of modern racing often require a bike that is both aerodynamic and lightweight.
I appreciate the raw speed of an all-out aero bike. Yet bikes like that are never at the top of my dream bike ownership list. Instead, I’ve gravitated to more all-around performers, if not straight-up weight weenie dream bikes like the Specialized Aethos.
This is probably why I don’t mind Trek going with the happy medium. Even though a true Émonda rider would have wanted Trek to make the Émonda platform lighter versus more aero, I agree with Trek that the majority of Madone 7 riders—and most road riders in general—will appreciate the new Madone’s big weight reduction without taking a massive aerodynamic hit (at least on paper).
For riders with the taste and budget for this bike, the new Madone won’t disappoint. It’s a great road bike capable of competing at the highest level while offering an alternative to other high-end, do-it-all lightweight aero bikes, like the Pinarello Dogma F, Specialized Tarmac SL8, or Factor’s Ostro Vam. For cyclists seeking a bike like this but on a more limited budget, Trek offers one of the lowest-priced entry points into a high-end race bike its $3,500 Madone SL 5.
So, while the eighth-generation Madone might not be for everyone, Trek at least offers its latest race bike in a broader range of prices than the previous version, and that’s something worth celebrating.
Notes From the Field
Random observations from my time testing the bike.
- Considering how important the new bottles are to the aero performance of the new Madone, it’s worth discussing them. There is an adjustment time to become accustomed to getting them in and out of the aero cages. The actual hold feels extremely secure. If anything, they are a bit harder to get in and out than I want them to be, but I got used to them after a few weeks of riding.
My only real gripe with them is the valve. It takes more force to open and close than I want. Plus, the flow isn’t that great. A minor annoyance is that you can’t stand the bottles on their end to fill them. Fortunately, the aero cages can hold a traditional round bottle, or you can ditch the bottle and cages altogether if the extra aero gains aren’t that important to you. - Given I recently wrote a story on every bike being raced in the 2024 Tour de France, including all 18 of the World Tour teams, I’m rather confident that the new Madone is the only bike currently using a UDH derailleur hanger in the World Tour. This is great for everyday riders as it means a spare hanger should never be all that hard to find and this generation of Madone should be future-proofed for whatever drivetrain SRAM might have in the future.
- While the battle against through-the-headset cable routing has been lost, Trek at least makes the latest Madone a little easier to live with. Trek offers separate headset and spacer options to match its RSL Aero one-piece bar/stem and its RCS Pro two-piece cockpit, but there is also a headset cap that allows riders to run whatever handlebar and stem they want.
Trek even offers an alternative top cap that lets riders run a round spacer on top of the RSL Aero bar. This means riders can adjust their bar height without cutting brake hoses or trimming the steerer tube. - The included computer mount does not allow you to adjust the angle of your computer, which is annoying. Otherwise, it’s a tidy mount and a big improvement over the one used on the Madone 7.
- The new saddle clamp design is a big highlight. It’s secure and features independent adjustments for the angle and fore/aft adjustments, which is a big improvement over Trek’s previous single bolt design.
- The RSL Aero one-piece cockpit won’t please everyone. Personally, I found it quite comfy in both reach and drop shape. However, the back sweep on the tops might annoy some riders who prefer a straighter top section and spend lots of time with their hands there.
Test Editor Dan Chabanov got his start in cycling as a New York City bike messenger but quickly found his way into road and cyclocross racing, competing in professional cyclocross races from 2009 to 2019 and winning a Master’s National Championship title in 2018. Prior to joining Bicycling in 2021, Dan worked as part of the race organization for the Red Hook Crit, as a coach with EnduranceWERX, as well as a freelance writer and photographer.
