Quiver

2023 Specialized Demo Race vs 2025 Forbidden Supernought

The S2 is the Forbidden Supernought size closest to your S3 Specialized Demo Race. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.

What changes on the Forbidden Supernought

Compared with the Specialized Demo Race in S3, the Forbidden Supernought in S2 places the top of the head tube 8 mm higher and 3 mm further back, relative to the bottom bracket. Its wheelbase is 6 mm shorter, which can contribute to quicker direction changes.

Frame stack
+8 mm
Higher front end
Frame reach
−3 mm
Shorter frame reach
Wheelbase
−6 mm
Shorter: quicker to change direction
Head angle
+0.3°
Steeper: sharper steering
Chainstays
n/a
One of the bikes has no number for this

The two frames

2023 Specialized Demo Race (S3)The Specialized Demo Race frame drawn to scale.J 1259

Only the Specialized Demo Race is drawn. The Forbidden Supernought numbers we have for size S2 are missing the chainstay length.

Geometry side by side

MeasurementSpecialized Demo Race S3Forbidden Supernought S2Difference
Reach446mm443−3 mm
Stack632mm640+8 mm
Head tube angle62.8°63.1+0.3°
Seat tube angle76.8°75.8−1.0°
Chainstay length448mmnot listed
Wheelbase1259mm1253−6 mm
Seat tube length420mm420±0 mm
Head tube length105mm100−5 mm
Effective top tubenot listed604
BB dropnot listed-10.6
BB heightnot listed350
Standovernot listed760

Differences are the Forbidden Supernought minus the Specialized Demo Race. Full charts: 2023 Specialized Demo Race, 2025 Forbidden Supernought.

Where each sits in its class

Specialized Demo RaceForbidden Supernought

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

Each bike is ranked against the other downhill bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.

What each ships with

The stock build of each bike's first listed trim. Parts that match are dimmed.

PartSpecialized Demo RaceRaceForbidden Supernought1
ForkÖhlins DH38 M.1 29RockShox BoXXer Ultimate
Rear shockÖhlins TTX 22RockShox Vivid Coil Ultimate
ShifterSRAM X0 1 DHSRAM Pod Rocker Controller
DerailleurSRAM X01 DHSRAM XX DH Transmission
CassetteSRAM X01 DHSRAM XX DH
ChainSRAM PC-1130SRAM X0 Eagle Transmission
CranksetSRAM X01 DHSRAM XX DH
Bottom bracketSRAM DUBSRAM DUB
TireSpecialized ButcherMaxxis ASSEGAI, Maxxis DHRII
HubDT Swiss 350crankbrothers Synthesis Ratchet
BrakeMagura MT7SRAM Maven Silver
HandlebarRenthal Fatbar 35Burgtec Ride Wide DH
StemRenthal Integra35Burgtec Direct Mount
GripsSpecialized Deity Lockjawnot listed
SaddleSpecialized Henge DHfizik Gravita Alpaca
Framenot listedSupernought Full Carbon
Chainringnot listedSRAM 34T
Rimnot listedcrankbrothers Synthesis Alloy 2.0 DH
Rotornot listedSRAM HS2
Headsetnot listedCane Creek 40
Seatpostnot listedBurgtec Xpress
Accessorynot listedForbidden HD Guide, E.13 LG1 Plus

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
A Transition Relay build sheet: frame, fork, shock and drivetrainThe Relay’s ride photo galleryThe Relay’s ride spectrum and 2D frame geometryThe garage: five bikes and 99 recorded partsA Specialized Tarmac SL8 road build sheet