Product Info
Details + Specs
S-Works Crux - SRAM RED XPLR eTAP AXS
Light, fast and ready for gravel
We made Crux, the lightest gravel bike in the world, even lighter. With the unrivaled capability of massive tyre clearance and performance gravel geometry, it's not just the ultimate expression of gravel performance — it's your one-way ticket to gravel enlightenment.
Best for: Fast gravel riding, mixed-surface racing and lightweight all-road adventures.
At a glance
Frame
S-Works Crux FACT 12r Carbon, Rider First Engineered™, threaded BB…
Drivetrain
SRAM RED AXS XPLR, 13-speed
Wheels
Roval Terra CLX II, 25mm internal width, 32mm depth, tubeless ready, 21h
Cockpit
Roval Terra, carbon, 103mm drop x 70mm reach x 12° flare
Brakes
SRAM RED XPLR, hydraulic disc, 160mm rotor
Weight
6.94 kg / 15 lb 4.8 oz (size 56)
Key highlights
A 725-gram Rider First Engineered™ frame (size 56) with UDH dropout and threaded BB — the lightest in the Crux range, now paired with SRAM RED XPLR for a further 102g…
SRAM's flagship 13-speed 1x drivetrain with an integrated Quarq power meter, wide-range 10-46t gearing, and hydraulic disc brakes that cut lever effort by up to 80%.
Deep 32mm-depth, 25mm internal-width tubeless-ready hoops on ceramic-bearing hubs and DT Swiss internals for speed and confident cornering grip.
Room for up to 47mm on 700c wheels or 2. 1" on 650b, so the same frame runs anything from fast gravel file tread to singletrack-ready rubber.
Complete specification
Full build details
Components are grouped by bike system so the complete build is easy to scan.
Frameset
Frame
S-Works Crux FACT 12r Carbon, Rider First Engineered™, threaded BB, 12x142mm thru-axle, flat-mount disc, UDH dropout (725g, size 56)
Suspension
Fork
S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc
Brakes
Front Brake
SRAM RED XPLR, hydraulic disc, 160mm rotor
Rear Brake
SRAM RED XPLR, hydraulic disc, 160mm rotor
Drivetrain
Shift Levers
SRAM RED AXS
Rear Derailleur
SRAM RED AXS XPLR, 13-speed
Cassette
SRAM RED XPLR, 13-speed, 10-46t
Chain
SRAM RED XPLR, 13-speed
Crankset
SRAM RED XPLR, DUB Wide, Quarq power meter, 40t
Bottom Bracket
SRAM DUB BSA, threaded
Wheels and tyres
Front Wheel
Roval Terra CLX II, 25mm internal width, 32mm depth, tubeless ready, 21h
Rear Wheel
Roval Terra CLX II, 25mm internal width, 32mm depth, tubeless ready, 24h, SRAM XDR freehub
Tyres
Pathfinder Pro, Tubeless Ready, 700x38c
Cockpit and contact points
Handlebars
Roval Terra, carbon, 103mm drop x 70mm reach x 12° flare
Stem
S-Works SL, alloy, titanium bolts
Bar Tape
Supacaz Super Sticky Kush
Seatpost
Roval Alpinist, carbon, 27.2mm
Saddle
S-Works Power with Mirror
Weight and sizing
Weight
6.94 kg / 15 lb 4.8 oz (size 56)
Weight is based on a production painted bike in the stated reference size. Actual weight can vary with colour, size and component variation. Specifications are subject to change without notice.