$0.00
Color: Naked
Model Year: 2014
| Size | S | M | L |
|---|---|---|---|
| Rider Height | 165-174 | 170-182 | 180-195 |
| Reach | 412 | 434 | 456 |
| Stack | 585 | 595 | 605 |
| Bar Width | 720 | 720 | 720 |
| BB Drop | 40 | 40 | 40 |
| Crank Length | 170 | 175 | 175 |
| Head Tube | 90 | 100 | 110 |
| Head Tube Angle | 70 | 70 | 70 |
| Rear Center | 445 | 445 | 445 |
| Seat Angle | 73.5 | 73.5 | 73.5 |
| Seat Tube | 420 | 460 | 510 |
| Top Tube | 585 | 610 | 635 |
If you’re an avid mountain biker searching for a bike that blends race-ready efficiency with all-day trail capability, the BMC Fourstroke FS01 29 XX1 might just be your next obsession. This high-end full-suspension 29er from Swiss manufacturer BMC has earned its stripes in the cross-country scene, offering a perfect mix of lightweight construction, advanced suspension, and top-tier components. In this comprehensive review, we’ll dive deep into what makes the Fourstroke FS01 29 XX1 stand out, from its carbon frame to its performance on rugged terrain. Whether you’re a competitive racer or a weekend warrior, understanding this bike’s features can help you decide if it’s the right fit for your adventures.
BMC, known for its precision engineering and innovation in cycling, introduced the Fourstroke line as a nod to endurance racing. The Fourstroke FS01 29 XX1, launched around 2013, represents a pinnacle in their mountain bike offerings during that era. It was designed to excel in cross-country marathons and technical trails, building on BMC’s reputation for creating bikes that perform under pressure. Unlike pure race machines that sacrifice comfort, this model incorporates big-wheel 29-inch rims for better rollover and stability, making it versatile for various riding styles.
The “FS01” designation indicates it’s the top-tier model in the Fourstroke family, featuring premium materials and components. Paired with the SRAM XX1 drivetrain, it promises smooth shifting and reliability. Over the years, riders have praised its ability to handle everything from steep climbs to fast descents, proving that the Fourstroke FS01 29 XX1 isn’t just a bike—it’s a tool for pushing limits.
At the heart of the Fourstroke FS01 29 XX1 is its carbon fiber frame, weighing in at approximately 2,040 grams including hardware. This lightweight yet robust construction uses BMC’s advanced carbon layup techniques to ensure stiffness where it counts, like in the bottom bracket and head tube areas, for efficient power transfer. The frame’s design incorporates Big Wheel Concept (BWC) geometry, which optimizes the bike for 29-inch wheels, providing a longer wheelbase for stability without feeling sluggish.
Geometry-wise, the Fourstroke FS01 29 XX1 strikes a balance between cross-country agility and trail confidence. With a head angle around 70 degrees and a chainstay length that’s compact for quick handling, it feels nimble on tight switchbacks. The seat tube angle promotes an efficient pedaling position, ideal for long climbs. Available in sizes small, medium, and large, it caters to a range of rider heights, though the small size often fits like a medium from other brands.
One standout feature is the integrated cable routing, which keeps the aesthetics clean and protects internals from mud and debris. The frame also includes mounts for water bottles and accessories, making it practical for epic rides.
What sets the Fourstroke FS01 29 XX1 apart in the full-suspension category is BMC’s Advanced Pivot System (APS). This linkage-driven design provides 100mm of rear travel, tuned for pedaling efficiency while maintaining traction on rough terrain. The APS minimizes bob during climbs, allowing you to hammer uphill without wasting energy.
Paired with a FOX Float CTD Factory Kashima rear shock, the suspension offers three modes: Climb, Trail, and Descend. In Climb mode, it firms up for sprinting; Trail provides balanced damping for mixed terrain; and Descend opens up for plush absorption on drops and rocks. Up front, a FOX 32 Float fork with 100mm travel complements the rear, featuring Kashima coating for smooth operation and reduced friction.
Riders often note how the suspension inspires confidence, making the bike feel more capable than its 100mm travel suggests. It’s not just for racing—it’s excellent for all-day adventures where maintaining momentum is key.
The “XX1” in Fourstroke FS01 29 XX1 refers to SRAM’s revolutionary 1×11 drivetrain, which was groundbreaking at the time for its wide-range cassette (10-42T) and single chainring setup. This simplifies shifting, reduces weight, and eliminates front derailleur issues. The crankset is typically a carbon SRAM XX1 with a 32T ring, paired with an XX1 rear derailleur for precise, quiet operation.
Braking comes from high-end options like SRAM or Avid hydraulic discs, providing modulation and power for controlled stops on steep descents. Wheels are often DT Swiss XR 1501 or similar lightweight alloys, shod with Continental Race King or X-King tires for fast-rolling traction.
Other components include a Fi’zi:k saddle, Thomson stem and seatpost, and Easton handlebars, all chosen for durability and low weight. The complete bike tips the scales at around 23.8 pounds, making it one of the lighter full-suspension 29ers in its class.
Testing the Fourstroke FS01 29 XX1 on the trails reveals why it’s beloved by pros and amateurs alike. Its pedaling efficiency shines on climbs, where the stiff frame and locked-out suspension let you power up without fatigue. The 29-inch wheels roll over obstacles effortlessly, maintaining speed on fire roads and singletrack.
Descending, the bike’s geometry and suspension provide surprising capability for a cross-country machine. It handles technical sections with poise, absorbing roots and rocks while keeping you in control. Testers have called it the “best-pedaling and best-tracking” full-suspension XC bike, ideal for endurance events like the Trans-Sylvania Epic.
For trail riding, the Fourstroke FS01 29 XX1 excels in flowy sections, where its responsiveness encourages pumping and jumping. It’s not as plush as longer-travel bikes, but for mixed terrain, it’s versatile. Fuel efficiency is another plus—expect to cover more ground with less effort compared to heavier rigs.
Like any bike, the Fourstroke FS01 29 XX1 has its strengths and weaknesses. Here’s a balanced look:
Overall, the pros outweigh the cons for those prioritizing speed and efficiency.
Comparing the Fourstroke FS01 29 XX1 to contemporaries like the Specialized Epic or Trek Top Fuel, it holds its own in efficiency and weight. The BMC’s APS suspension is often lauded for better pedaling than some rivals, while its carbon frame provides superior stiffness. However, bikes like the Scott Spark might offer more travel for rougher trails.
In today’s market, newer models have evolved with 12-speed drivetrains and integrated tech, but the Fourstroke FS01 29 XX1 remains a solid used option for budget-conscious buyers. Its timeless design ensures it performs well even against modern XC bikes.
To keep your Fourstroke FS01 29 XX1 in top shape, regular maintenance is key. Clean the drivetrain after muddy rides, check suspension seals, and service pivots annually. Upgrades could include a dropper post for better descending control or tubeless tires for puncture resistance.
BMC’s warranty and support network make ownership hassle-free, with parts readily available.
The BMC Fourstroke FS01 29 XX1 is more than a mountain bike—it’s a gateway to elevated riding experiences. Whether tackling World Cup-level races or exploring local trails, its blend of speed, comfort, and durability shines through. If you’re ready to invest in a machine that rewards effort with exhilaration, this could be your ideal companion.
For those hunting vintage gems, used models offer great value. Dive into the world of the Fourstroke FS01 29 XX1 and discover why it’s still talked about years later.
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