BMC Fourstroke R 01 Frameset
Best lightweight performance for competitive cross country riders.
This high-performance frameset is engineered for competitive cross-country mountain biking, aiming for top podium finishes. It features a sophisticated 120mm APS suspension system designed for optimal performance on challenging terrain. The inclusion of an Öhlins TXC2 shock and an Autodrop dropper post further enhances its capabilities, providing advanced control and adjustability for riders seeking a competitive edge. This frameset is built for speed and efficiency, making it a premier choice for serious racers.
$5799.00
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Owner Satisfaction
4.5
/ 5
Category Rank
303
/ 579
#303 in Bicycle Frames
Price vs Category Average
+272%
Above average
Suspension
120
/ mm APS suspension
Who it's for
- Competitive cross-country racers seeking a performance edge
- Riders prioritizing efficient power delivery and superior trail handling
- Experienced riders who demand precise control and responsive steering
Who should skip it
- Budget-conscious riders or those not competing professionally
- Casual trail riders seeking maximum comfort and plushness
- Custom builders or riders preferring broad component interchangeability
Performance breakdown
Suspension Efficiency
The 120mm APS system delivers elite power transfer on technical climbs.
Damping Precision
Öhlins TXC2 shock provides world-class control through the roughest rock gardens.
Frame Agility
Carbon construction offers a razor-sharp feel for rapid, high-speed directional changes.
Adjustment Speed
Autodrop technology allows for near-instant seat height changes during intense racing.
Climbing Capability
Ultra-lightweight geometry ensures maximum efficiency when the trail points upward.
Race Readiness
A purpose-built platform designed specifically for chasing podiums at elite levels.
Key Specs
Suspension
120mm APS suspension
Rear Shock
Öhlins TXC2
Dropper Post
Autodrop dropper post
Wheel Size
29"
Material
Carbon
Know before you buy
This frameset is specifically engineered for competitive cross-country (XCO) racing. It is designed for riders who prioritize speed, efficiency, and technical performance on demanding race courses.
The Advanced Pivot System (APS) is tuned to balance pedaling efficiency with active bump absorption. With 120mm of travel, it provides enough support to handle rough, technical sections while maintaining the responsiveness needed for climbing and sprinting.
The Öhlins TXC2 is a high-performance shock that offers superior damping control compared to standard options. It is specifically matched to the Fourstroke's kinematics to provide a more refined and consistent feel through varied terrain.
The Autodrop system allows for rapid, automated seatpost adjustment without requiring the rider to sit on the saddle to lower it. This feature is designed to save time and energy during high-intensity race situations where every second counts.
No, the Fourstroke R 01 is designed exclusively for 29-inch wheels. This geometry is optimized for the rollover capabilities and momentum maintenance required for modern cross-country racing.
The frame is built using high-modulus carbon fiber. This construction ensures the necessary stiffness for efficient power transfer while keeping the overall weight low for agility on climbs.
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$5799