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2021 Forbidden

Dreadnought SLX Complete

A 29″ carbon frame full suspension enduro bike with upper mid-range components.
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Manufacturer Price

$5,699
FrameCarbon
SuspensionFull, 154 / 170mm
ForkRockShox ZEB Select+
ShockFox Float X2 Performance
Wheels29″ Aluminum
Drivetrain1 × 12
GroupsetSLX
BrakesShimano Deore Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Dreadnought SLX Complete
Other Enduro bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

28 mph

Dreadnought SLX Complete

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes
  • 5'10", size M, Just right
Reviews

Summary

The Forbidden Dreadnought is a standout enduro bike with a unique high-pivot suspension design that excels in rough, fast terrain, offering stability and confidence akin to a downhill sled. It's praised for its superb suspension performance, aggressive geometry, and size-specific tuning, making it a favorite for descending. However, its weight and demanding nature on climbs, along with some quirks like a noisy idler and long chainstays, may not suit all riders.

Pros
  • Unique high-pivot suspension design

  • Excellent stability and confidence at speed

  • Size-specific geometry and tuning

  • Superb suspension performance on rough terrain

  • Aggressive enduro-ready geometry

Cons
  • Heavy and demanding on climbs

  • Noisy idler in muddy conditions

  • Long chainstays can hinder maneuverability

  • Not the most efficient climber

  • Overkill for less aggressive riders

Key Quotes
Would you own the most capable trail bike ever made, even if it meant you could never do a manual again?
Beta logoBeta
In a world of copycat designs the Forbidden Dreadnought stands out as a genuine trailblazer.
MBR logoMBR
The Dreadnought is a hard one to place. It's a 150mm-travel bike with an idler pulley and dual-crown compatibility.
Pinkbike

Feedback?

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Bikerumor
Forbidden’s Dreadnought GX LTD Team Edition Offers a ‘Factory Pro’ Look to Anyone

Dec 2022 · Steve Fisher

Forbidden Bike Co. offers you the chance to look like a factory pro with the limited-run Dreadnought LTD Team Edition.

Read Review

MBR
Forbidden Dreadnought XT review - MBR

Apr 2022 · Alan Muldoon

Forbidden now has a big gun but who needs the Forbidden Dreadnought XT when the Druid is already billed as capable? In short... everyone. Let me explain.

Highs
  • Unique ride quality. Great sizing with balanced weight distribution across all sizes. Buttery-smooth suspension with good range of adjustment and plenty of support for smashing bigger hits. Steep seat angle means you simply sit down and spin and the Dreadnought climbs with the best of them. It’s better than the Druid.

Lows
  • Needs a high-rise bar. End-stroke progression makes it harder to get full travel, so maybe a coil shock would make this bike better still. Idler is noisy when it’s muddy. Longer chainstay and rearward axle path means you have to put more effort into lifting the front end.

Read Review

Pinkbike
Review: Forbidden Dreadnought

Aug 2021 · Seb Stott

The Dreadnought has the manners of a bigger bike, but its 151mm of travel doesn't quite deliver the same performance as longer travel options.

Highs
  • Superb suspension tracking over small and mid-sized bumps.

  • Balanced weight distribution provides excellent cornering composure in flat, loose turns.

  • Stable and confident on fast, bike-park style terrain.

  • Comfortable and easy to manage traction on technical climbs.

Lows
  • The XL's long chainstay (which grows through the travel) makes manuals, hops, or steep and tight trails trickier.

  • Though supple for the travel, suspension isn't as forgiving as longer travel bikes in the same intended use category.

  • Though idler drag is minimal, it's not the sprightliest climber even compared to longer travel bikes.

  • Our bike had a shock bolt repeatedly work loose and two hard-to-explain snapped derailleurs.

Read Review

Beta
Long-Term Test: Is the Forbidden Dreadnought Inefficient?

Jun 2021 · Travis Engel

We held on to the Forbidden Dreadnought for nearly two months. Was that long enough to know if we could hold on to it forever?

Read Review

NSMB
The Forbidden Dreadnought Fears Nothing – Interview w/ Owen Pemberton

Mar 2021

A global pandemic can't keep the new Forbidden Dreadnought chained down. Owen Pemberton shares some of the challenges during the bike's development.

Read Review

Geometry
Specs
Build
Frame

Dreadnought Full Carbon - 154mm Travel High-Modulus Carbon Fiber | Trifecta High Single Pivot Suspension | One Ride Geometry | Enduro Max Bearings | 73mm Threaded BSA Bottom Bracket

BB StandardBSA, Threaded

Fork

RockShox ZEB Select+ - 170mm Travel Charger 2.1 Damper | LSC | LSR | DebonAir Air Spring | 44mm Offset | Maxle Stealth Thru-Axle | Gloss Black

Travel170mm

Spring TypeAir

Shock

FOX Performance FLOAT X2 LSC | LSR | Evol Air Can | Custom Tune | Trunnion Mount | DU Mount | 205x65mm

Travel154mm

Bottom Bracket

Shimano Threaded SM-BB52 | 24mm Spindle | HollowTechII | Threaded BSA

Headset

Acros AZX-203 SHIS: ZS44/28.6|ZS56/40 | Premium Stainless Steel Bearings

Stem

e*thirteen Base 40mm Length | 35mm Bar Clamp | Black Anodized with Grey Graphics

Handlebar

e*thirteen Base 800mm Width | 20mm Rise | 35mm Bar Bore | Black Anodized with Grey Graphics

Saddle

SDG Radar Chromo Chromoly Rails | Black Synthetic Cover with Black Cordura Reinforcements

Seatpost

e*thirteen Vario 31.6mm | Adjustable Dropper Travel | Size Specific Travel :S/M=120-150mm - L/XL:150-180mm

TypeDropper

Pedals

Not included

Grips

Forbidden Tapered Single Sided Lock-On | Black

Groupset
Rear Derailleur

Shimano SLX 12speed Shadow+ with Clutch

Crank

Shimano SLX 32T FC-M7100 | 170mm All Sizes | 52mm Chainline | Black

Shifters

Shimano SLX 12speed I-Spec EV Integrated Shifter/Brake Lever

Cassette

Shimano SLX 10-51T 12speed | MicroSpline | 10-12-14-16-18-21-24-28-33-39-45-51T

Chain

Shimano SLX CN-M7100 | 12speed | Links = S:130 / M:132 / L:134 XL:136

Chain Tensioner

Forbidden Idler Pulley with e.13 Custom Chainguide Forbidden Integrated Idler | e.13 TRS Plus | Molded Inner with Compact Outer | Black

Brakes

Shimano 4 Piston, Front: Shimano 4-Piston BL-M6100 Lever | BR-M6120 Calipers | Metal Pads, Rear: Shimano 4-Piston BL-M6100 Lever | BR-M6120 Calipers | Metal Pads

TypeShimano Deore Hydraulic Disc

Wheels
Rims

e*thirteen LG1 EN Plus 30mm Internal Width | Tubeless Ready | 32hole | Black with Grey Graphics

Spokes

Double Butted Black Stainless 2.0/1.8/2.0mm Double Butted | Black ED Coated Stainless | Black Brass 14mm Nipples

Front Hub

Shimano SLX HB-M7100 | 110x15mm | 32hole | Center-Lock

Rear Hub

Shimano SLX HB-M7100 | Quick Engagement | Microspline | 148x12mm | 32hole | Center-Lock

Tires

Front: Maxxis Assegai 29"x2.5" 3C MaxxTerra Rubber Compound | 120tpi | Folding | Tubeless Ready | EXO+ Casing, Rear: Maxxis Minion DHR II 29"x2.4" 3C MaxxTerra Rubber Compound | 2x120tpi | Folding | Tubeless Ready | Double Down Casing

Disc Rotors

Shimano 203mm RT-MT64 | Center-Lock | External Serated Lock-Ring

Rider Notes
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First added February 9

Last updated December 24

Not listed for 1,196 days