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Forbidden2026

2026 Forbidden Dreadnought E T4

Trail

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

Model year
2026
Frame
T4
Type
Trail
Geometry labels
S1, S2, S3, and S4
Source
forbiddenbike.com
Checked

Geometry by size

2026 Forbidden Dreadnought E T4 geometry by size
MeasurementS1S2S3S4
Reach(mm)425445461481
Stack(mm)635648669682
Head tube angle(°)63636363
Seat tube angle(°)Not availableNot availableNot available76.8
Effective top tube(mm)575598619642
Wheelbase(mm)1215.51256.91298.21339.5
BB drop(mm)-20-20-20-20
BB height(mm)340.8340.8340.8340.8
Standover(mm)720720720720
Seat tube length(mm)400420440470
Head tube length(mm)100115138153
Not available

Requested. Requests decide what we research next.

Stock build

25 parts

Frame

FrameFrom the manufacturer: Frame type Full SuspensionFrom the manufacturer: Category TrailFrom the manufacturer: Rear travel 170mm

Suspension

RockShox ZEB
ForkFrom the manufacturer: Wheel size 27.5From the manufacturer: Front axle / spacing 15x110 (Boost)From the manufacturer: Steerer diameter 1.5 Tapered Alum / 1.8 Tapered AlumFrom the manufacturer: Brake mount 200 mm min / 220 mm maxFrom the manufacturer: Stanchion diameter 38mmFrom the manufacturer: Spring type DebonAir+ / Dual Position Air
RockShox Super Deluxe
Rear shockEye-to-eye length 205mmStroke 60mmMount / hardware Trunnion (body) / standard eyelet (shaft)Spring type AirFrom the manufacturer: External adjustments RCT2From the manufacturer: Tune RCT2Weight 458 g

Drivetrain

SRAM Eagle 70 Transmission
DerailleurFrom the manufacturer: Total capacity 42 t
SRAM Eagle 70 Transmission
CassetteFrom the manufacturer: Speeds 12From the manufacturer: Freehub body Shimano HG
Praxis Type 7 Alloy E-Cranks
CranksetFrom the manufacturer: Speeds 12
Chainring
Bottom bracketFrom the manufacturer: Spindle interface ISIS

Powertrain

Avinox M2
MotorFrom the manufacturer: Max torque 110 NmFrom the manufacturer: Peak power 1100 WFrom the manufacturer: Weight 2650 g
BatteryFrom the manufacturer: Capacity 600 Wh

Wheels & Tires

TireFrom the manufacturer: TPI 60 TPIFrom the manufacturer: Bead FoldingFrom the manufacturer: Tubeless ready
Maxxis Minion DHR II
TireTubeless ready
crankbrothers Synthesis
Hub
crankbrothers Alloy 1.0
RimFrom the manufacturer: Internal width 31.5mmFrom the manufacturer: Tubeless ready

Brakes

BrakeFrom the manufacturer: Piston count 4From the manufacturer: Fluid type Mineral
SRAM Centerline
Rotor

Cockpit

HandlebarFrom the manufacturer: Clamp diameter 35mmFrom the manufacturer: Width 800mmFrom the manufacturer: Material AluminumFrom the manufacturer: Backsweep 9°From the manufacturer: Upsweep 5°
StemFrom the manufacturer: Bar clamp diameter 35mm
GripsFrom the manufacturer: Length 128mm
HeadsetFrom the manufacturer: Standard (SHIS) ZS

Seatpost & Saddle

Dropper postFrom the manufacturer: Actuation Cable
Forbidden Clamp
SeatpostFrom the manufacturer: Material AluminumFrom the manufacturer: Clamp style CNC
Saddle

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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.

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