2026
2026 BMC Fourstroke 01 THREE
The 2026 BMC Fourstroke 01 THREE sits at the aggressive end of the range for a XC bike, with a slacker head angle and a shorter rear center. Reach 437 to 500 mm, stack 584 to 615 mm. The Fourstroke 01 THREE build comes with Shimano SLX shifting and DT Swiss X 1900 wheels.
Sources: fr.bmc-switzerland.com, us.bmc-switzerland.com. Checked .
Key facts
- Brand
- BMC
- Model
- Fourstroke 01
- Model year
- 2026
- Frame
- THREE
- Type
- XC
- Geometry labels
- S, M, L, and XL
- Drivetrain
- Shimano SLX
- Rear shock
- RockShox SIDLUXE 3P Select+
- Wheels
- DT Swiss X 1900
- Geometry
- Complete for every size
- Source
- us.bmc-switzerland.com
- Checked
Things to know
Compared with other XC bikes on frame geometry alone.
- Less stack relative to reach than 9 in 10 XC bikes: stack-to-reach ratio is 1.28, compared with 1.41 for this group.
- Steeper seat angle than 9 in 10 XC bikes: 75.6 degrees, where most sit near 74.
Geometry by size
| Measurement | S | M | L | XL |
|---|---|---|---|---|
| Reach(mm) | 437 | 457 | 477 | 500 |
| Stack(mm) | 584 | 592 | 600 | 615 |
| Head tube angle(°) | 66.75 | 66.75 | 66.75 | 66.75 |
| Seat tube angle(°) | 75.6 | 75.6 | 75.6 | 75.6 |
| Effective top tube(mm) | 574 | 597 | 621 | 649 |
| Chainstay length(mm) | 432 (from the manufacturer) | 432 (from the manufacturer) | 432 (from the manufacturer) | 432 (from the manufacturer) |
| Wheelbase(mm) | 1139 | 1171 | 1188 | 1218 |
| BB drop(mm) | 53 | 53 | 53 | 53 |
| Standover(mm) | 725 | 725 | 725 | 765 |
| Seat tube length(mm) | 420 | 430 | 460 | 490 |
| Head tube length(mm) | 84 | 93 | 101 | 118 |
✓Sources agreeMManufacturer
Stock build
17 parts
Frame
Suspension
RockShox SID SL 3P Select
RockShox SIDLUXE 3P Select+
Drivetrain
Wheels & Tires
Brakes
Shimano SM-RT54
Cockpit
BMC MFB 02
Seatpost & Saddle
X-Fusion Manic
Keep your Fourstroke 01 THREE in Quiver
Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.
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✓Sources agreeMManufacturer
Quick answers
- Which size or configuration labels have geometry for the 2026 BMC Fourstroke 01 THREE?
- Geometry is listed for S, M, L, and XL.
- What are the reach and stack of the 2026 BMC Fourstroke 01 THREE in size L?
- In size L, reach is 477 mm and stack is 600 mm.
- What is the head tube angle of the 2026 BMC Fourstroke 01 THREE?
- The head tube angle is 66.75 degrees in every size.
- What does the 2026 BMC Fourstroke 01 THREE ship with?
- The stock build includes BMC Fourstroke 01, RockShox SID SL 3P Select, Shimano SLX XT, and DT Swiss X 1900.
- Which years of the BMC Fourstroke 01 are on Quiver?
- Quiver has the BMC Fourstroke 01 for 2026.
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