Skip to main content

The Official Bike Shop of The Lehigh Valley Velodrome ("T-Town")

BMC Fourstroke 01 (XX1)

BMC Fourstroke 01 (XX1)
Please select options


BMC’s Fourstroke 01 is ultra-fast, ultra-light, and ready to annihilate cross country courses. The carbon frame, stiff through-axles, and APS rear suspension achieve an impressively lightweight, efficient ride with dialed control. Leading the path to victory, a Fox Float 32 Factory fork dials up precision steering while providing 100mm of buttery-smooth, Kashima-coated travel. A Kashima-coated Fox shock complements the APS suspension, creating an active, efficient 100mm travel rear end. And both the front and rear have remote lockouts when it's really time to put the hammer down. Putting your power down is SRAM’s quick XX1 1x11-speed drivetrain reeled in by XTR brakes with their incredible modulation and minimal weight. You’ll experience quick engagement, and the stiffness and response to drop the riders behind you with the DT Swiss XR 1501 Spline One wheels. BMC rounds out the spec with their carbon bars, carbon seatpost, and a comfortable Fizik saddle.

BMC APS Suspension

BMC's Advanced Pivot System (APS) balances the applied forces of shock absorption and pedaling efficiency to maintain chain tension and rear wheel traction. BMC connected two laterally stiff triangles with a pair of links and an ideally located virtual pivot point (instant balance center noted in graphic). The result is outstanding traction, power transfer, and a ride ready for everything from XC to enduro.


Frame BMC Carbon w/142 x 12mm thru-axle, 100mm-travel
Fork Fox Float 32 FIT4 Factory, 100mm-travel w/15mm thru-axle, Kashima coating
Rear Shock Fox Float Factory, w/Kashima coating
Rims/Wheels DT Swiss XR 1501 Spline ONE
Hubs See Rims/Wheels
Spokes See Rims/Wheels
Tires Continental; Front: X-King, Rear: Race King, 29 x 2.20
Crankset SRAM XX1, carbon
Chainrings 30T
Rear Derailleur SRAM XX1 X-Horizon
Rear Cogs SRAM XX1, 11-speed: 10-42
Shifters Shimano XX1
Handlebars BMC MFB01 carbon
Stem BMC MSM 02
Brakes Shimano XTR disc, 160mm rotors
Saddle Fizik Tundra M5
Seatpost BMC MSP01 carbon

* Subject to change without notice.

Part Numbers

Option UPC MPN
SuperRed / Small 7630019483001 222682
SuperRed / Medium 7630019483018 222683
SuperRed / Large 7630019483025 222684