Велосипед BMC Fourstroke Four

BMC Fourstroke Four Mountain Bike | Acid Yellow — Black

Designed to dominate Cross-Country race courses, from World Cup level to your local series.

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Fourstroke is the cornerstone Cross-Country bike designed to excel on every level. Offering beyond-the-tape versatility, this XC machine is setting a new standard with unrivalled 100mm APS dual-link suspension travel. The redefined Big Wheel Concept geometry improves performance in a lightweight full-carbon frame with integrated protection and two water bottle cages for long-distance rides.

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Traction is Speed

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More traction equals more speed, and that is what BMC is after.

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The updated APS Suspension System features next-level kinematics and best-in-class suspension performance designed to deliver full traction and great efficiency on every terrain. Resulting in faster times, this new and improved full-feature suspension system finds no match on the race-course.

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Advanced Pivot System – the best tool for the job

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• Using APS, BMC engineers have access to a versatile suspension system with the ability to design complex kinematics that could not be achieved using weight-driven solutions like flex stays and single-pivot suspension systems.

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• APS features a virtual rear suspension pivot trough the rear wheel travel, which is defined by upper and lower link and the resulting 4 pivots.

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• APS allows BMC to fine-tune the suspension kinematics to provide an incredibly dynamic suspension behavior across the travel.

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Uphill Traction:

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The anti-squat tuning featured on Fourstroke decreases along the travel, preventing chain growth when hitting obstacles: this allows the suspension to compress smoothly and track the terrain for perfect traction.

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Once the suspension starts extending again, the anti-squat value rises to keep the wheel tracking the terrain, significantly increasing the grip.

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Downhill Flow:

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APS keeps the suspension active when the going gets tough by reducing pedal-kickback deep in the travel and preventing negative influences during braking.

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Improved Suspension Progressivity:

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The updated Fourstroke kinematics and all-new shock tune provide a progressive spring curve, delivering a superior ride experience in any riding situation.

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• Small bump sensitivity

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• Support in rough conditions

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• Bottomless feeling

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• More predictable airtime behavior

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The Winning Edge

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Extensive testing shows that the Fourstroke and APS suspension are faster than lighter bikes that feature weight-saving suspension systems, proving that superior traction and pedaling efficiency are more important than weight.

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FRAMESET
Frame	Fourstroke Carbon | APS Suspension System, 100mm Travel- Fully | Guided Internal Cable Routing | PF92 Bottom Bracket | Post Mount Disc | 12x148mm Boost Thru-Axle
Fork	Rock Shox SID SL RL — TwistLoc Lockout — TwistLoc Lockout
Rear shock	Rock Shox SID SL RL | TwistLoc Lockout | TwistLoc Lockout
DRIVETRAIN
Shift levers	SRAM NX Eagle
Rear derailleur	SRAM NX Eagle
Gears	1x12
Cassete	SRAM SX EAGLE PG-1210 11-50T
Chain	SRAM NX Eagle
Crank set	SRAM X1 1000 Eagle 34T
BRAKES
Brakes	SRAM Level T
WHEELS &: TIRES
Rims	SHL28OS, 25mm Inner Width
Hubs	DC-711 (F) / DC-3248 (R)
Tires	Vittoria Mezcal 2.35' Tubeless
HANDLEBAR &: SADDLE
Handlebar	BMC MFB02 Alloy 750mm
Stem	BMC MSM01
Saddle	Fizik Antares R5
Seatpost	BMC MSP03 — 31,6mm — 0mm Offset
EXTRAS
Weight Limit	110 kg