2026
2026 Forbidden Dreadnought E T4
The 2026 Forbidden Dreadnought E T4 sits at the upright end of the range for a trail bike, with a slacker head angle. Reach 425 to 481 mm, stack 635 to 682 mm. The Dreadnought E T4 build comes with SRAM Eagle 70 Transmission shifting and Maxxis High Roller 3 tires.
Source: forbiddenbike.com. Checked .
Key facts
- Brand
- Forbidden
- Model
- Dreadnought E
- Model year
- 2026
- Frame
- T4
- Type
- Trail
- Geometry labels
- S1, S2, S3, and S4
- Drivetrain
- SRAM Eagle 70 Transmission
- Fork
- RockShox ZEB
- Rear shock
- RockShox Super Deluxe
- Geometry
- Some measurements unavailable
- Source
- forbiddenbike.com
- Checked
Geometry by size
| Measurement | S1 | S2 | S3 | S4 |
|---|---|---|---|---|
| Reach(mm) | 425 | 445 | 461 | 481 |
| Stack(mm) | 635 | 648 | 669 | 682 |
| Head tube angle(°) | 63 | 63 | 63 | 63 |
| Seat tube angle(°) | Not available | Not available | Not available | 76.8 |
| Effective top tube(mm) | 575 | 598 | 619 | 642 |
| Wheelbase(mm) | 1215.5 | 1256.9 | 1298.2 | 1339.5 |
| BB drop(mm) | -20 | -20 | -20 | -20 |
| BB height(mm) | 340.8 | 340.8 | 340.8 | 340.8 |
| Standover(mm) | 720 | 720 | 720 | 720 |
| Seat tube length(mm) | 400 | 420 | 440 | 470 |
| Head tube length(mm) | 100 | 115 | 138 | 153 |
Not available
Requested. Requests decide what we research next.
Stock build
25 parts
Frame
Suspension
RockShox ZEB
RockShox Super Deluxe
Drivetrain
SRAM Eagle 70 Transmission
SRAM Eagle 70 Transmission
Praxis Type 7 Alloy E-Cranks
Powertrain
Avinox M2
Wheels & Tires
Brakes
SRAM Centerline
Cockpit
Seatpost & Saddle
Keep your Dreadnought E T4 in Quiver
Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.
Free on App StoreFree on Google PlayFree for your first bike, on iPhone and Android.Already have Quiver? Open this build
✓Sources agreeMManufacturer
Quick answers
- Which size or configuration labels have geometry for the 2026 Forbidden Dreadnought E T4?
- Geometry is listed for S1, S2, S3, and S4.
- What are the reach and stack of the 2026 Forbidden Dreadnought E T4 in size S3?
- In size S3, reach is 461 mm and stack is 669 mm.
- What is the head tube angle of the 2026 Forbidden Dreadnought E T4?
- The head tube angle is 63 degrees in every size.
- What does the 2026 Forbidden Dreadnought E T4 ship with?
- The stock build includes Forbidden Dreadnought E, RockShox ZEB, SRAM Eagle 70 Transmission, and Avinox M2.
- Which years of the Forbidden Dreadnought E are on Quiver?
- Quiver has the Forbidden Dreadnought E for 2026.
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app



