The Santa Cruz Stigmata 4 CC frameset is the ideal base for building your own custom carbon gravel bike. It is the same Carbon CC frame used on the complete bikes, with a claimed weight of 1.87 kg and a compatible integrated headset: groupset, wheels and components are up to you.
Whether you are planning a gravel race bike, a bikepacking rig or an all-road build with a suspension fork, the Stigmata 4 CC has the versatility to support every project.
Carbon CC gravel frame
- Santa Cruz Carbon CC frame with a claimed weight of 1.87 kg: stiff where you push, comfortable over long distances
- Clearance for tyres up to 700x50 mm in 1x configuration, ready for even the roughest gravel
- 68 mm BSA threaded bottom bracket, 12x100 / 12x142 mm thru-axles and Universal Derailleur Hanger (UDH)
- Three bottle mounts, fender mounts and internal routing for a 27.2 mm dropper post
- Ready to take a 40 mm gravel suspension fork should you want more control in the future
Compatibility and build options
- 1x setup up to 42 teeth or 2x up to 50/36
- Electronic or Shimano mechanical front derailleur
- 68 mm BSA bottom bracket, compatible with SRAM Wide and Shimano GRX cranksets
- 160 mm flat mount rear brake, IS41/52 headset, 31.8 mm seat clamp
- Rigid forks with 430 mm axle-to-crown and 45 mm offset, or 40 mm gravel suspension forks
Fast gravel geometry
A 69.5° head angle, 74° seat angle and short 423 mm chainstays across all sizes: the Stigmata changes direction eagerly yet stays stable on descents. In size L, reach is 420 mm with 600 mm of stack, for an efficient position you can hold for hours. Six sizes, from XS to XXL.
Why choose the Santa Cruz Stigmata 4 CC frameset
- Light and tough Carbon CC carbon gravel frame
- Total build freedom: 1x or 2x, mechanical or electronic
- Clearance for tyres up to 50 mm and three bottle mounts
- Elegant, understated Matte Carbon finish
Build the gravel bike of your dreams starting from the Santa Cruz Stigmata 4 CC 2026 frameset: the ideal starting point for a project without compromise.
TECHNICAL SPECIFICATIONS
-
Frame
- Kit contents: Carbon CC Gravel 700c frame with compatible integrated headset
- Claimed frame weight: 1.87 kg / 4.12 lb
- Max tyre clearance: 700x50 mm (1x), 700x45 mm (2x)
- Bottom bracket: BSA 68 mm threaded (SRAM Wide / Shimano GRX)
- Axles: 12x100 mm / 12x142 mm, UDH
- Rear brake mount: Flat mount 160 mm
- Headset: Integrated IS41/52
- Seatpost diameter: 27.2 mm
- Seat clamp: 31.8 mm
- Bottle mounts: 3 (two inside the front triangle, one under the down tube)
- Fork compatibility: Rigid forks with 430 mm axle-to-crown and 45 mm offset, or 40 mm gravel suspension forks (e.g. RockShox Rudy, Fox 32 TC)
-
Extras
- Chainrings: 1x: max 42t / 2x: 50-36t
- Dropper post: Internal routing for 27.2 mm dropper post
- Fenders: Fender mounts (up to 700x45 mm tyres with fenders)
The Santa Cruz Stigmata 4 CC frameset is the ideal base for building your own custom carbon gravel bike. It is the same Carbon CC frame used on the complete bikes, with a claimed weight of 1.87 kg and a compatible integrated headset: groupset, wheels and components are up to you.
Whether you are planning a gravel race bike, a bikepacking rig or an all-road build with a suspension fork, the Stigmata 4 CC has the versatility to support every project.
Carbon CC gravel frame
- Santa Cruz Carbon CC frame with a claimed weight of 1.87 kg: stiff where you push, comfortable over long distances
- Clearance for tyres up to 700x50 mm in 1x configuration, ready for even the roughest gravel
- 68 mm BSA threaded bottom bracket, 12x100 / 12x142 mm thru-axles and Universal Derailleur Hanger (UDH)
- Three bottle mounts, fender mounts and internal routing for a 27.2 mm dropper post
- Ready to take a 40 mm gravel suspension fork should you want more control in the future
Compatibility and build options
- 1x setup up to 42 teeth or 2x up to 50/36
- Electronic or Shimano mechanical front derailleur
- 68 mm BSA bottom bracket, compatible with SRAM Wide and Shimano GRX cranksets
- 160 mm flat mount rear brake, IS41/52 headset, 31.8 mm seat clamp
- Rigid forks with 430 mm axle-to-crown and 45 mm offset, or 40 mm gravel suspension forks
Fast gravel geometry
A 69.5° head angle, 74° seat angle and short 423 mm chainstays across all sizes: the Stigmata changes direction eagerly yet stays stable on descents. In size L, reach is 420 mm with 600 mm of stack, for an efficient position you can hold for hours. Six sizes, from XS to XXL.
Why choose the Santa Cruz Stigmata 4 CC frameset
- Light and tough Carbon CC carbon gravel frame
- Total build freedom: 1x or 2x, mechanical or electronic
- Clearance for tyres up to 50 mm and three bottle mounts
- Elegant, understated Matte Carbon finish
Build the gravel bike of your dreams starting from the Santa Cruz Stigmata 4 CC 2026 frameset: the ideal starting point for a project without compromise.
TECHNICAL SPECIFICATIONS
-
Frame
- Kit contents: Carbon CC Gravel 700c frame with compatible integrated headset
- Claimed frame weight: 1.87 kg / 4.12 lb
- Max tyre clearance: 700x50 mm (1x), 700x45 mm (2x)
- Bottom bracket: BSA 68 mm threaded (SRAM Wide / Shimano GRX)
- Axles: 12x100 mm / 12x142 mm, UDH
- Rear brake mount: Flat mount 160 mm
- Headset: Integrated IS41/52
- Seatpost diameter: 27.2 mm
- Seat clamp: 31.8 mm
- Bottle mounts: 3 (two inside the front triangle, one under the down tube)
- Fork compatibility: Rigid forks with 430 mm axle-to-crown and 45 mm offset, or 40 mm gravel suspension forks (e.g. RockShox Rudy, Fox 32 TC)
-
Extras
- Chainrings: 1x: max 42t / 2x: 50-36t
- Dropper post: Internal routing for 27.2 mm dropper post
- Fenders: Fender mounts (up to 700x45 mm tyres with fenders)
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