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Forbidden2025

2025 Forbidden Dreadnought Tier

Enduro

The 2025 Forbidden Dreadnought Tier sits more upright than most enduro bikes, with a slacker head angle. Reach 430 to 491 mm, stack 618 to 659 mm. The Dreadnought Tier 1 build comes with SRAM X0 Eagle Transmission shifting and crankbrothers Synthesis 11 wheels.

Source: forbiddenbike.com. Checked .

Key facts

Model year
2025
Frame
Tier
Type
Enduro
Geometry labels
S1, S2, S3, and S4
Drivetrain
Varies by build
Rear shock
Varies by build
Geometry
Complete for every size
Source
forbiddenbike.com
Checked

Things to know

Compared with other enduro bikes on frame geometry alone.

  • Longer chainstays than 9 in 10 enduro bikes: 453 mm, where most sit near 438.

Geometry by size

2025 Forbidden Dreadnought Tier geometry drawing, size S2Side view of the 2025 Forbidden Dreadnought Tier frame in size S2, drawn to scale from its published geometry, with lettered dimension lines.J 1248A 450mmB 632mmJ 1248mmH 446mmK -20mmC 595mmD 63.1°E 77.1°F 105mmG 420mmN 341mmL 775mm
Geometry drawing, size S2, to scale.
2025 Forbidden Dreadnought Tier geometry by size
MeasurementS1S2S3S4
Reach(mm)430 (from the manufacturer)450 (from the manufacturer)471 (from the manufacturer)491 (from the manufacturer)
Stack(mm)618 (from the manufacturer)632 (from the manufacturer)645 (from the manufacturer)659 (from the manufacturer)
Head tube angle(°)63.1 (from the manufacturer)63.1 (from the manufacturer)63.1 (from the manufacturer)63.1 (from the manufacturer)
Seat tube angle(°)77.1 (from the manufacturer)77.1 (from the manufacturer)77.1 (from the manufacturer)77.1 (from the manufacturer)
Effective top tube(mm)572 (from the manufacturer)595 (from the manufacturer)618 (from the manufacturer)641 (from the manufacturer)
Chainstay length(mm)431446460475
Wheelbase(mm)1206.5 (from the manufacturer)1247.6 (from the manufacturer)1288.8 (from the manufacturer)1330.0 (from the manufacturer)
BB drop(mm)-19.6 (from the manufacturer)-19.6 (from the manufacturer)-19.6 (from the manufacturer)-19.6 (from the manufacturer)
BB height(mm)341 (from the manufacturer)341 (from the manufacturer)341 (from the manufacturer)341 (from the manufacturer)
Standover(mm)771 (from the manufacturer)775 (from the manufacturer)777 (from the manufacturer)780 (from the manufacturer)
Seat tube length(mm)400 (from the manufacturer)420 (from the manufacturer)440 (from the manufacturer)470 (from the manufacturer)
Head tube length(mm)90 (from the manufacturer)105 (from the manufacturer)120 (from the manufacturer)135 (from the manufacturer)
Sources agreeManufacturer

Stock build

Dreadnought Tier 122 parts

Frame

Forbidden Dreadnought V2
FrameFrom the manufacturer: Frame type Full SuspensionFrom the manufacturer: Category EnduroFrom the manufacturer: Rear travel 160mm

Suspension

RockShox ZEB Ultimate
ForkFrom the manufacturer: Wheel size 27.5Travel 150 / 160 / 170 / 180 / 190mmWeight ~2265 g
RockShox Vivid Ultimate
Rear shockFrom the manufacturer: Tune RC2T

Drivetrain

SRAM X0 Eagle Transmission
CassetteFrom the manufacturer: Speeds 12From the manufacturer: Freehub body SRAM XD
SRAM X0 Eagle Transmission
Chain
SRAM X0 Eagle
Crankset
ChainringFrom the manufacturer: Mount standard Direct Mount
Bottom bracket

Wheels & Tires

crankbrothers Synthesis 11
Wheelset
TireFrom the manufacturer: TPI 60 TPIFrom the manufacturer: Tubeless ready Yes
TireFrom the manufacturer: TPI 60 TPI

Brakes

SRAM Maven Ultimate
BrakePiston count 4From the manufacturer: Fluid type MineralFrom the manufacturer: Lever adjustments Independent bite point and reach adjustmentFrom the manufacturer: Pad compound OrganicFrom the manufacturer: Brake type Hydraulic
RotorFrom the manufacturer: Thickness 2mm

Cockpit

Burgtec Ride Wide Enduro
Handlebar
StemFrom the manufacturer: Bar clamp diameter 35mmFrom the manufacturer: Material Aluminum
Forbidden lock-on
Grips
Cane Creek Hellbender 70
Headset

Seatpost & Saddle

Dropper postFrom the manufacturer: Actuation Cable
OneUp Components Setback
Seatpost
SaddleWidth 145mmRail material AluminumWeight 238 gLength 248mmBase / shell fiber reinforced nylon

Keep your Dreadnought Tier 1 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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Dreadnought Tier 216 parts

Frame

Forbidden Dreadnought
FrameFrom the manufacturer: Rear travel 160mm

Suspension

Fox 38 Factory
ForkFrom the manufacturer: Wheel size 27.5Steerer diameter 1.5" taperedFrom the manufacturer: Brake mount 200 direct Post Mount, up to 230 compatibleFrom the manufacturer: Stanchion diameter 38mmFrom the manufacturer: Spring type FLOAT EVOL GlideCore
RockShox Vivid Ultimate
Rear shockFrom the manufacturer: Tune RC2T

Drivetrain

SRAM AXS POD Rocker
ShifterFrom the manufacturer: Compatibility Eagle Powertrain / RockShox Flight AttendantFrom the manufacturer: Weight 79 g
DerailleurFrom the manufacturer: Clutch yes
SRAM GX Eagle Transmission
CassetteSpeeds 12
ChainSpeeds 12From the manufacturer: Compatibility T-Type
CranksetCrank length 170 / 175mm
Bottom bracket

Wheels & Tires

crankbrothers Synthesis Enduro 2.0
Wheelset
TireFrom the manufacturer: Tubeless ready
Maxxis Minion DHR II DD
TireFrom the manufacturer: TPI 60 TPIFrom the manufacturer: Tubeless ready Yes

Brakes

BrakeFrom the manufacturer: Lever adjustments Independent bite point and reach adjustment
RotorDiameter 200mmWeight 192 g

Cockpit

Seatpost & Saddle

Dropper postFrom the manufacturer: Material Aluminum

Keep your Dreadnought Tier 2 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

Dreadnought Tier 316 parts

Frame

Forbidden Dreadnought
FrameFrom the manufacturer: Rear travel 160mm

Suspension

ForkFrom the manufacturer: Wheel size 27.5
Fox Float X2 Factory
Rear shockEye-to-eye length 205mmFrom the manufacturer: Tune Ibis Traction Tune

Drivetrain

ShifterFrom the manufacturer: Speeds 12From the manufacturer: Actuation type Mechanical
SRAM GX Eagle Transmission
CassetteSpeeds 12
ChainSpeeds 12From the manufacturer: Compatibility T-Type
CranksetFrom the manufacturer: Chainring interface Direct MountFrom the manufacturer: Spindle / BB interface DUBCrank length 155 / 160 / 165 / 170 / 175mmSpeeds 12
Bottom bracket

Wheels & Tires

TireFrom the manufacturer: Tubeless ready
Maxxis Minion DHR II DD
TireFrom the manufacturer: TPI 60 TPIFrom the manufacturer: Tubeless ready Yes

Brakes

BrakeFrom the manufacturer: Piston count 4From the manufacturer: Fluid type MineralFrom the manufacturer: Lever adjustments Independent bite point adjustment / Lever blade reach adjustmentFrom the manufacturer: Pad compound Steel-backed metal sintered / Steel-backed organicFrom the manufacturer: Brake type HydraulicFrom the manufacturer: Weight 381 g
RotorDiameter 200mmWeight 192 g

Cockpit

Seatpost & Saddle

Dropper postFrom the manufacturer: Actuation Cable

Keep your Dreadnought Tier 3 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 agreeManufacturer

Quick answers

Which size or configuration labels have geometry for the 2025 Forbidden Dreadnought Tier?
Geometry is listed for S1, S2, S3, and S4.
What are the reach and stack of the 2025 Forbidden Dreadnought Tier in size S3?
In size S3, reach is 471 mm and stack is 645 mm.
What is the head tube angle of the 2025 Forbidden Dreadnought Tier?
The head tube angle is 63.1 degrees in every size.
What does the 2025 Forbidden Dreadnought Tier 1 ship with?
The stock build includes Forbidden Dreadnought V2, RockShox ZEB Ultimate, SRAM Pod Rocker Controller, and crankbrothers Synthesis 11.
Which years of the Forbidden Dreadnought are on Quiver?
Quiver has the Forbidden Dreadnought for 2025.

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