Cervélo Soloist Review 2025: Better Than R5 For Most Riders?

The Cervélo Soloist bridges the gap between the featherweight R5 and the wind-cheating S5, combining their best features. Introduced in 2023, this versatile bike weighs about 250g more than the R5 and 250g less than the S5. The design achieves a perfect balance between climbing ability and aerodynamic performance.

The Soloist weighs 7.72kg for a size 56. While it's not Cervélo's lightest offering, its versatility and value make it stand out. The bike costs $2,200 less than similar R5 or S5 builds. A reliable SRAM Force drivetrain and 34mm tire clearance make it suitable for training rides and local criteriums.

The biggest question cyclists ask: Does this balanced approach work better than the legendary R5 for most riders? The R5's reputation comes from carrying Tour de France champions to victory, and it remains Cervélo's lightest, stiffest climbing machine. The Soloist takes the R5's climbing heritage and combines it with the S5's aerodynamic features. This combination could be ideal for ground riding conditions.

We'll test the 2025 Cervélo Soloist extensively to see if this versatile all-rounder deserves your attention more than its specialized counterparts.

Cervélo Soloist 2025: What’s New and Who It’s For

The 2025 Cervélo Soloist continues to be the Swiss Army knife in Cervélo's high-performance lineup. The updated model builds on its 2-year old design and refines what made it an instant hit among cyclists looking for versatility without compromise.

Target rider profile

Dedicated enthusiasts and competitive amateurs who want one premium bike that handles different riding conditions love the Cervélo Soloist. Most riders need a single machine that excels in all types of terrain, unlike pros who have specialized bikes ready.

"I wanted to create a bike for the rider who doesn't have a team car following with three spare bikes," explains Graham Shrive, Cervélo's Director of Engineering. This idea shapes the entire Soloist concept.

The Soloist appeals to these riders:

• Club racers who compete in different events throughout the season
• Serious enthusiasts who challenge themselves on tough terrain every weekend
• Performance-minded cyclists who prefer versatility over specialization
• Riders ready to invest in quality but want better value than flagship models

The Soloist's appeal extends to riders who might buy the R5 but would get more value from its broader capabilities.

Positioning between R5 and S5

The Cervélo Soloist holds the strategic middle ground in the company's performance hierarchy. The lightweight R5 climbing specialist focuses on minimal weight and uphill performance at one end. The wind-tunnel-optimized S5 aero machine stands at the other.

The Soloist strikes a careful balance between these specialists:

• Weight: At 7.72kg (size 56), it weighs 250g more than an equivalent R5 build but 250g less than an S5
• Aerodynamics: Features many S5 design elements in a more versatile package
• Price: Costs $2,200 less than equivalent R5 or S5 builds, making high-end performance more available
• Frame design: Takes elements from both platforms, combining R5's handling characteristics with S5's tube shaping

Cervélo calls this "the peoples' race bike" - you get much of the specialized performance at a more reasonable price point.

Use-case scenarios: racing, training, all-round

The Soloist shows its versatility in multiple riding scenarios. Race day performance combines near-R5 climbing efficiency with almost-S5 aerodynamics, perfect for courses with mixed terrain. The balanced geometry works great in criteriums, road races, or gran fondos.

Training on the Soloist comes with practical benefits. The bike fits tires up to 34mm wide, adding comfort on rough roads during long base miles. The frame's durability and gentler ride compared to the ultra-stiff R5 helps reduce fatigue during high-volume training weeks.

The Soloist really shines as an all-rounder. The bike adapts naturally to changing conditions, from epic mountain adventures to flat group rides. Its balanced weight and aerodynamic profile ensure you stay competitive on any terrain.

The Soloist shows Cervélo understands that most cyclists—even competitive ones—need a bike that performs well across disciplines rather than excelling in just one. This real-life racing bike proves versatility matters more than specialization.

Frame and Geometry: Balancing Aero and Climbing DNA

A race bike's DNA shows in its frame design and geometry measurements. The Cervélo Soloist combines climbing prowess and aerodynamic efficiency to create its unique character.

Cervélo Soloist geometry vs R5 and S5

The Soloist's handling geometry comes straight from Cervélo's acclaimed R5 ^[1]. This explains why riders feel at home the moment they hop on this bike. The size 56 frame comes with a 565mm stack and 392mm reach ^[2]. The position isn't as aggressive as the S5 but remains without doubt race-oriented.

The bike achieves a sweet spot between stability and agility with its 73° head and seat tube angles, 72mm of bottom bracket drop, and 57mm of trail ^[2]. More importantly, the 994mm wheelbase lets you stay stable at high speeds while keeping responsive handling ^[3]. The geometry borrows the R5's renowned "poise, stability, and precision" ^[1]. These qualities really shine when you tackle technical descents after challenging climbs.

The three platforms show subtle but important differences:

• The Soloist's 156mm head tube sits between the R5's 163mm and S5's 109mm ^[4]
• Stack/reach ratio of 1.44 fits perfectly between the R5 (1.47) and S5 (1.41) ^[4]
• Chainstay length matches the R5 at 410mm, slightly longer than the S5's 405mm ^[4]

Cycling experts describe these measurements as "a balanced mix of sportiness and comfort" ^[5]. The bike isn't as aggressive as pure aero machines or as relaxed as endurance models.

Tire clearance and comfort features

The standout frame feature is the generous 34mm tire clearance ^[6]. This spec beats most competitors in the performance category. Riders can use wider tires for training and rough roads without losing race-day performance.

The dropped seatstays – a design shared with the S5 rather than the R5 – improve the ride quality by a lot ^[7]. This design makes the bike more comfortable on rough surfaces, transfers power better through the frame, and keeps aerodynamic efficiency. The SP27 carbon seatpost cuts down road buzz ^[8]. This helps especially on longer rides.

The BBright-47 threaded bottom bracket, which first appeared on the R5-CX, adds another comfort feature ^[2]. This design keeps the frame's stiffness while making it more durable for riders who don't have daily professional mechanical support.

Cervélo Soloist frame weight and stiffness

The Soloist finds the sweet spot in weight. The frame weighs 919g for a painted size 56, with a 374g fork ^[9]. This makes it 261g heavier than the lightweight R5 but 154g lighter than the aero-focused S5 ^[9].

Stiffness numbers also put the Soloist between its siblings. The bottom bracket matches the R5's stiffness, giving excellent power transfer during hard efforts ^[10]. The head tube area shows slightly more stiffness than the R5 ^[10]. This helps with precise handling in high-speed descents and corners.

Testers consistently praise how this stiffness works on the ground. The oversized chainstays and substantial bottom bracket stay rigid during power output. The slender seatstays reduce road vibrations effectively ^[3]. So the Soloist delivers a ride that feels "exhilarating and fast when you really push it" yet stays "smooth riding and comfortable" at easier paces ^[3].

The Cervélo Soloist frame shows how to balance competing needs perfectly. Its geometry, clearance, and construction create a bike that climbs almost as well as a pure climber and cuts through wind efficiently - while staying comfortable for daily rides.

Component Build: Ultegra Di2 and Beyond

The Cervélo Soloist's frame serves as a foundation for several thoughtfully selected component builds. Cervélo's 2025 lineup features seven different builds. Each build matches different rider priorities and budgets.

Drivetrain: SRAM Force vs Ultegra Di2 options

The top-tier Ultegra Di2 build ($9,000) showcases Shimano's 12-speed electronic shifting excellence. It pairs a 52/36T crankset with an 11-34T cassette ^[11]. This build has a 4iiii Precision Pro GEN3+ dual-sided power meter built into the crankset ^[11]. You get valuable training data without extra upgrades.

The SRAM Force AXS variant ($7,299) brings wireless electronic shifting with different gearing - a 48/35T crankset and 10-33T cassette ^[12]. Riders who want simplicity can choose the Force AXS 1x option ($7,199). It comes with a single 48T chainring and wider 10-36T cassette ^[13].

Budget-conscious riders can pick from Rival AXS ($5,299), 105 Di2 ($5,299), or mechanical 105 ($3,799) builds ^[2]. These options deliver reliable shifting at better prices while keeping the Soloist's essential traits.

Wheelset and tire setup

Premium Soloist builds roll on Reserve carbon wheelsets with varied front/rear depths. The Ultegra Di2 and Force AXS versions sport Reserve wheels - 42mm front and 49mm rear ^[2]. This combo strikes a sweet spot between aerodynamics and handling. The wheels measure 25.5mm internal width front and 24.5mm rear ^[11]. They mount to Zipp hubs with 24 spokes at both ends.

Every build runs on Vittoria Corsa N.EXT TLR G2.0 700x29mm tires ^[14]. These tires work tubeless for better comfort and fewer flats. The frame fits tires up to 34mm wide ^[11], so you can tackle various road conditions.

More affordable builds come with aluminum wheels. The 105 Di2 and Rival AXS use Vision Team i23 wheels ^[2]. The base 105 model rolls on Alexrims GX3 alloy hoops ^[2].

Cockpit and cable integration

Each Soloist model sports a two-piece cockpit. It combines a Cervélo ST36 alloy stem (with internal cable management) and a Cervélo AB07 alloy handlebar (31.8mm clamp diameter) ^[11]. This setup balances aerodynamics and adjustability better than fully integrated cockpits on rival bikes.

Riders wanting more aero gains can upgrade to options like the Polymer Workshop Sculpture Handlebar. This one-piece aero carbon construction routes cables internally ^[15]. You'll need a special Cervélo adapter, but you get less frontal area and better stiffness.

The cables route internally through the headset bearing cap ^[13]. This creates clean looks while home mechanics can still work on the bike easily.

Performance on the Road: Real-World Testing Insights

The Cervélo Soloist shows its true colors through ground testing. This testing reveals how theory works in practice and shows where this versatile machine shines and where it needs to compromise.

Climbing performance vs R5

The Soloist proves its climbing abilities on steep gradients. It weighs approximately 250g more than the lightweight R5 ^[16]. The bike might not accelerate as quickly as pure climbing bikes, but its oversized chainstays and substantial bottom bracket deliver solid power transfer ^[3].

You'll notice the extra weight during quick accelerations on long climbs rather than steady climbing. The stiffness profile helps convert pedaling power into forward motion efficiently ^[3]. The bike's R5-derived geometry strikes a balance between aerodynamics and comfort for climbing. Riders who push themselves to the limit might still prefer the lighter R5 for serious mountain stages ^[17].

Flat speed and aero efficiency vs S5

The Soloist's aerodynamic heritage shines on flat terrain. Tests show it creates about 190g more drag than the S5 but beats the R5 by 126g less drag ^[18]. This means you'll need 22 more watts than the S5 at racing speeds. The gap shrinks to 10-15 watts at typical rider speeds of 30-35 km/h ^[18].

The bike holds speed well on long flat sections even though it's not a pure aero machine ^[16]. It works best with deeper section wheels like the available 42/49mm Reserve options. These help maintain speeds above 35 km/h more effectively ^[7].

Handling and comfort on long rides

The bike handles just like the popular R5. It responds quickly to steering but stays stable ^[2]. A 73° head angle and 57.3mm trail give you precise cornering without feeling nervous ^[19]. This setup makes technical descents feel natural and confidence-inspiring ^[3].

The Soloist handles road vibrations well through its slim seatstays and specially designed fork ^[3]. The frame's stiffness becomes more noticeable on rough roads. This makes tire choice and pressure crucial for comfort during longer rides ^[7]. The extra tire clearance lets you run lower pressures to boost comfort without losing speed ^[19].

Is the Soloist Better Than the R5 for Most Riders?

A side-by-side look at both bikes shows this isn't about which one's "better" - it's about what gives you the best value based on your riding style.

Price-to-performance comparison

The price gap between these bikes is huge. The Soloist's mid to high-end builds (SRAM Force or Shimano Ultegra) cost $2,200 less than similar R5 and S5 builds ^[20]. You'll pay $6,800 for an Ultegra Di2 Soloist, while the R5 will set you back $9,000 ^[3]. This smart pricing makes the Soloist more available without cutting corners on performance.

The best part? You won't lose out on ride quality. Cervélo cut costs through smart choices - they went with alloy cockpits instead of carbon ^[7] and streamlined the frame's manufacturing process. The result? A bike that gives you 90% of the R5's performance at 75% of the price.

Weight vs versatility trade-offs

The Soloist weighs 250g more than the R5 ^[21] - that's the main trade-off. You'll notice this extra weight during steep climbs, but the bike makes up for it with practical benefits:

• Better tire clearance (34mm vs R5's 34mm, with the Soloist making better use of this space) ^[10]
• Standard bar/stem setup that's easier to adjust ^[21]
• Threaded T47 bottom bracket you can maintain at home ^[20]

Most riders will find these practical advantages worth the small climbing penalty. The Soloist's better aerodynamics - 126g faster than the R5 at race speeds ^[21] - sweetens the deal.

Who should still choose the R5?

The Soloist offers great value, but the R5 might be your best bet if you're:

• A dedicated climber looking for every weight advantage
• A competitive racer focused on mountain courses
• Someone chasing KOMs on steep climbs ^[22]
• A rider with an unlimited budget wanting the lightest possible bike

Unless you're racing at elite levels or spending all your time in the mountains, the Soloist makes more sense. It's a well-rounded bike that handles different riding conditions better throughout the year.

Conclusion

My time with the 2025 Cervélo Soloist has taught me what sets this bike apart in Cervélo's lineup. The Soloist hits that sweet spot between climbing ability and aerodynamic efficiency. It gives riders the best of both worlds without the specialized trade-offs you'd find in the R5 or S5.

Testing revealed something crystal clear: riders don't need different bikes for different conditions. The Soloist climbs almost as well as the R5 and offers better aerodynamics. It slices through wind more efficiently than the R5 without forcing you into the extreme position of the S5. This makes it a perfect fit for ground riding conditions.

The price tag deserves attention. You save $2,200 compared to similar R5 or S5 builds - that's great value without giving up much performance. The bike's practical advantages are solid too. You get more tire clearance, easier maintenance with the threaded bottom bracket, and the freedom to adjust traditional bar/stem setup. These features make the Soloist a smart pick for most cyclists.

Dedicated climbers chasing every advantage or racers who spend their time on mountain courses might want to spend extra on the R5's weight savings. In spite of that, I keep recommending the Soloist to more cyclists - from competitive club racers to serious enthusiasts who want one premium bike for different riding conditions.

The Cervélo Soloist represents what riders actually need rather than what marketing might tell them they want. It delivers about 90% of the specialized performance at 75% of the cost. This combination makes it better than the legendary R5 for all but the most specialized uses, which might surprise some people.

FAQs

Q1. How does the Cervélo Soloist compare to the R5 in terms of climbing performance? The Soloist climbs impressively, though it's about 250g heavier than the R5. While this weight difference is noticeable during rapid accelerations, the Soloist still delivers efficient power transfer on sustained climbs due to its stiff frame design.

Q2. What are the key differences between the Cervélo Soloist, R5, and S5 models? The Soloist strikes a balance between the lightweight R5 and aero-focused S5. It's about 250g heavier than the R5 but 250g lighter than the S5, offering a mix of climbing ability and aerodynamic efficiency at a lower price point than both specialized models.

Q3. Is the Cervélo Soloist comfortable for long rides? Yes, the Soloist offers good comfort for long rides. Its frame design, including slender seatstays and a compliance-focused fork, helps manage road vibrations. The generous 34mm tire clearance also allows riders to use wider tires for improved comfort without sacrificing speed.

Q4. What type of rider is the Cervélo Soloist best suited for? The Soloist is ideal for dedicated enthusiasts and competitive amateurs who want one premium bike for diverse riding conditions. It's perfect for club racers, serious weekend warriors, and performance-minded cyclists who value versatility over specialization in either climbing or aerodynamics.

Q5. How does the Cervélo Soloist perform on flat terrain compared to the S5? On flat terrain, the Soloist demonstrates strong aerodynamic performance, though not quite matching the specialized S5. At racing speeds, it generates about 126g less drag than the R5 but 190g more than the S5. This translates to a 10-15 watt difference at typical riding speeds compared to the S5, while still offering significant aero advantages over the R5.

References

[1] - https://www.northernride.com/Cervelo-Soloist-Cervelo-2023-s/2593.htm
[2] - https://www.cervelo.com/en-US/bikes/soloist
[3] - https://road.cc/content/review/cervelo-soloist-ultegra-302211
[4] - https://99spokes.com/compare?bikes=cervelo-r5-frameset-2023,cervelo-s5-frameset-2023,cervelo-soloist-frameset-2023
[5] - https://granfondo-cycling.com/cervelo-soloist-racebike-review/
[6] - https://www.bikeride.com/cervelo-soloist/
[7] - https://www.cyclist.co.uk/reviews/cervelo-soloist-review
[8] - https://www.jensonusa.com/Cervelo-Soloist-105-Race-Bike-2025?srsltid=AfmBOopdouHeyRWU-dQdrn590oCCCfsNvOCjNfAzd73ElkX_bKvdtpUD
[9] - https://velo.outsideonline.com/road/road-racing/2023-cervelo-soloist-review-a-long-awaited-sequel-with-plenty-going-for-it/
[10] - https://cyclingmagazine.ca/sections/gear-reviews/bikesframes/first-look-review-cervelo-revives-the-soloist/
[11] - https://www.lvr-cycles.com/en/altitude-race-bikes/8554-cervelo-soloist-ultegra-di2-azure-12-speed-aerodynamic-carbon-road-bike-2025.html
[12] - https://www.bikeexchange.com/en-US/products/cervelo_soloist_force_axs_2025
[13] - https://www.jensonusa.com/Cervelo-Soloist-Force-AXS-1-Bike-2025?srsltid=AfmBOor0LxZXJH6OLaCDyps9j22GXIiOfODnGk3qHaDZBcSxYQZ98Jy4
[14] - https://www.lvr-cycles.com/en/altitude-race-bikes/8555-cervelo-soloist-rival-axs-dried-amaranth-12-speed-aerodynamic-carbon-road-bike-2025.html
[15] - https://www.polymer.ws/integrated-handlebar-for-cervelo
[16] - https://www.cyclingnews.com/reviews/queen-of-the-worldtour-climbers-cervelo-r5-long-term-review/
[17] - https://weightweenies.starbike.com/forum/viewtopic.php?t=177825
[18] - https://weightweenies.starbike.com/forum/viewtopic.php?t=169107&start=60
[19] - https://mikesbikes.com/collections/cervelo-soloist
[20] - https://www.theproscloset.com/blogs/news/cervelo-road-bike-buyer-s-guide?srsltid=AfmBOoo8EK62S9G1NxHfkE-aHlkSYQ5KBupRsvb_DVLQPyneacMp6qNz
[21] - https://www.theproscloset.com/blogs/news/cervelo-road-bike-buyer-s-guide?srsltid=AfmBOop9XXy04GwXITt4JOH66wnP6EwSI7fmD_xNtLBJK8JsfGf7Q_D6
[22] - https://www.theproscloset.com/blogs/news/cervelo-road-bike-buyer-s-guide?srsltid=AfmBOoqlkN70eAARrRxO5xFfgJ2VSc9giNbsvkjrIPQWByUkD50VW-X5