Santa Cruz Bullit 4 C Eagle 90 E-Mountain Bike 2026

Product Details

Key Features

Carbon C Frame– Manufactured in their exclusive factory, Santa Cruz controls how their designs are produced, ensuring the highest quality control. Their production C series carbon frames are strong as hell, with optimized layups and the latest techniques.

Travel– 170mm Front / 170mm Rear

Wheel Size– Mixed Wheel (29" Front / 27.5" Rear)

Bosch Performance Line CX Drive Unit– The next generation Bosch Performance Line CX motor is quieter, lighter, and smaller than ever. More compact but no less powerful, it comes with a maximum torque of 85Nm. Choose between 4 standard modes and customize your ride in the Bosch Flow App.

Discreet Top Tube Display– The built-in display on the toptube allows for battery charge and mode to be displayed. The display can also be used to turn system on/off and toggle modes. More detail (% battery charge and range) can be found by using the app.

Independently Adjustable Geo and Progression Chips– The geo chip raises or lowers the bottom bracket 4mm, and adjusts the head tube angle by 0.3°. The progression chip changes the progression from 26-29%.

Tool Mount– Discreet mounting bolts underneath the top tube allows for clean, on-bike-storage of tools, tubes or an AirTag.

Specs

• Biking Type: Mountain More

  Biking Type

  
  
  MountainMountain bikes are built for tackling rough terrain with frames made of durable materials like aluminum or carbon fiber, ensuring stability and maneuverability. They feature suspension to absorb impacts from rocks, roots, and drops, providing a smoother ride.
  
  
  
• Used For: Enduro More

  Used For

  
  
  EnduroIf you’re looking for maximum performance while flying down heavier trails, an enduro bike is for you. These bikes combine ample suspension travel (typically 150mm+) with descent-focused frame geometry and components that allow for reasonably efficient pedaling.
  
  
  
• Suspension: Full Suspension More

  Suspension

  
  
  Full SuspensionEngineered to tackle the most challenging terrain with enhanced comfort and control. Unlike hardtail bikes, full suspension bikes feature both front and rear suspension systems that allow the wheels to move independently from the frame.
  
  
  
• Gearing: 1 x 12
• Frame Material: Carbon More

  Frame Material

  
  
  CarbonCarbon is a composite frame material. Unlike metals, carbon is composed of fibrous strands woven into a grid and bonded with epoxy. Carbon is favored by many for its lightness and stiffness but its complexity in fabrication makes it the most expensive option.
  
  
  
• Water Bottle Mounts: 1
• Fork: Fox 38 Performance More

  Fork

  
  Fox 38 PerformanceThe Fox 38 is the hard hitting, long-travel enduro specialist. When you need to go really big, reach for the 38. Optimized for 160 - 180mm of travel and packing the same revolutionary feature set as the Fox 36, the 38 redefines what you think a long travel single crown fork is capable of, and sets a new benchmark for confidence, performance and durability.
  
  Performance Series forks retain the same black anodized 7000 series aluminum upper tubes as Performance Elite, except paired with a GRIP damper. Push-button bleeders are not included but can be purchased separately.
  
  
• Stanchion Diameter (mm): 38
• Fork Travel (mm): 170
• Rear Shock: Fox Float X Performance More

  Rear Shock

  
  Fox Float X PerformanceFrom aggressive trail to enduro, the advanced damping, fade free performance and class-leading durability of Float X makes it the versatile and lightweight choice for All-Mountain riders earning their descents.
  
  Shock Adjustments - Air Spring Pressure / 2-Position Open/Firm Lever / Rebound
  
  
• Rear Travel (mm): 170
• Drive Unit: Bosch Performance Line CX BDU38 More

  Drive Unit

  
  Bosch Performance Line CX BDU38The next generation Bosch Performance Line CX motor is quieter, lighter, and smaller than ever. More compact but no less powerful, it comes with a maximum torque of 85Nm. Choose between 4 standard modes and customize your ride in the Bosch Flow App.
  
  
• Battery: Bosch PowerTube 600Wh More

  Battery

  
  Bosch PowerTube 600WhThanks to their range, long service life, intelligent battery management system and easy handling, Bosch Power Tube lithium-ion batteries are among the most modern on the market. All those decades of Bosch experience has paid off!
  
  
• Shifters: SRAM Eagle 90 T-Type More

  Shifters

  
  SRAM Eagle 90 T-TypeThe feel, look and shift quality of the Eagle 90 Shifter
  allow you to ride in a whole new way. Optimized
  cable pull with a revised lever position for maximum
  control. With a new T-Type cable actuation ratio,
  Eagle 90 offers a higher quality of shift than any
  previous mechanical system.
  
  
• Rear Derailleur: SRAM Eagle 90 T-Type, 12-Speed More

  Rear Derailleur

  
  SRAM Eagle 90 T-Type, 12-SpeedThe Eagle 90 Transmission derailleur is the definitive
  answer to how good a cable actuated derailleur can
  be. It features an all-new T-Type cable actuation
  ratio to provide the most precise and crisp shifts
  every time. Utilizing the same Full Mount design
  as its electronic siblings, Eagle 90 is the strongest
  mechanical derailleur we have ever produced. Not
  only is it robust, but the derailleur body features
  replaceable outer and inner parallelogram links,
  skid plate, and a tool-free threaded cage assembly,
  making it the most rebuildable derailleur in the Eagle
  Transmission Ecosystem.
  
  
• Crankset: e*thirteen Helix eSpec, 155mm
• Cassette: SRAM Eagle T-Type XS-1275, 10-52t More

  Cassette

  
  SRAM Eagle T-Type XS-1275, 10-52tThe GX Eagle Transmission (T-Type) Cassette is a key reason why Eagle Transmission offers the best-ever inboard and outboard shifting performance under load. Thanks to its full X-SYNC design, the harder you pedal, the better it shifts. Designed for a 55mm chainline for less extreme chain angles throughout the full range and delivers more precision. It’s 520% range has been optimized with larger 38 and 44-teeth cogs prior to the 52-tooth cog for improved gear steps in the low end (compared to the Eagle drivetrain 10-52-tooth cassette). Featuring a clearly marked Setup Cog, install is both simple and foolproof. Plus, it utilizes a Pindome design for gears 1-8 and a single piece mini-cluster for gears 9-12.
  
  
• Chain: SRAM GX Eagle T-Type Flattop, 12-Speed More

  Chain

  
  SRAM GX Eagle T-Type Flattop, 12-SpeedThe GX Eagle Transmission (T-Type) chain is the strongest SRAM has ever made. Specifically engineered to optimize Eagle Transmission, this all-new T-Type design features a unique flat top. In addition to this shape maximizing shifting performance and upgrading the aesthetics of any bike, it is developed specifically for the added torque loads of E-MTB thanks to its solid pins that give it incredible strength.
  
  
• Pedals: Not Included
• Brake Levers: SRAM Maven Base More

  Brake Levers

  
  SRAM Maven BaseModern mountain bikes have redefined what riders are capable of, pushing the requirements for extreme duty power further than ever before. Maven is our answer to that evolution, giving you the boundless power of confidence for elevated speed and control on ever-more demanding terrain. Maven Base’s lever body houses Directlink, which translates rider input for a smooth application of power. And because of a stiff 4-bolt caliper that sheds an incredible amount of heat, that feel remains consistent, so the last corner feels like the first corner. And with so much baseline power on hand, there is more range than ever before to tune the ride qualities to exactly how you want with different pad materials, and rotor sizes. Maven Base features a Blasted Black anodized finish, and for ease of customization includes tool-free reach adjust
  
  
• Brake Calipers: SRAM Maven Base
• Rotors: SRAM HS2 | 200mm Front & Rear
• Headset: FSA IS-2/47/42 ACB
• Handlebar: OneUp Aluminum Bar, 35mm Rise, 800mm
• Bar Tape/Grips: Santa Cruz House Grip
• Stem: OneUp Stem, 42mm
• Saddle: SDG Bel-Air V3 Max Lux-Alloy
• Seatpost: OneUp Dropper More

  Seatpost

  
  OneUp DropperKnown for its no-nonsense smooth cable actuation, short overall length, and easy serviceability, the OneUp Dropper is a solid choice for dependable and customizable performance.
  
  
• Hubs: E13 SL E-Spec | 32h
• Rims: Reserve 30|HD AL
• Front Tire: Maxxis Assegai 2.5" | 3C MaxxGrip, DoubleDown, TR More

  Front Tire

  
  Maxxis Assegai 2.5" | 3C MaxxGrip, DoubleDown, TRGreg Minnaar’s signature tire – the Maxxis Assegai – provides tenacious, predictable grip across the entire profile no matter the lean angle. The Assegai can be used front and rear for a surefooted feel or as a front paired with a faster rolling rear tire.
  • 3C MaxxGrip: The stickiest, slowest rebounding rubber Maxxis offers.
  • DoubleDown (DD): Two layers of lightweight 120 TPI casing combined with a butyl sidewall insert creates a highly durable tire with more trail feedback than a Downhill casing tire.
  • Tubeless Ready (TR): Tubeless tires allow riders to run lower air pressures for improved traction, lower rolling resistance, and less chance of flatting.
  
  
  
• Rear Tire: Maxxis Minion DHR II 2.4" | 3C MaxxTerra, DoubleDown, TR More

  Rear Tire

  
  Maxxis Minion DHR II 2.4" | 3C MaxxTerra, DoubleDown, TRWith side knobs borrowed from the legendary Minion DHF, but widened to provide more support, the DHR II corners like no other. The center tread features ramped leading edges to improve acceleration and sipes to create a smooth transition when leaning the bike. Paddle-like knobs on the center tread dig in under hard braking and help keep the bike under control.
  • 3C MaxxTerra: A triple compound ideal for trail riding in all conditions - offers more traction than 3C MaxxSpeed, yet provides better treadwear and less rolling resistance than 3C MaxxGrip.
  • DoubleDown (DD): Two layers of lightweight 120 TPI casing combined with a butyl sidewall insert creates a highly durable tire with more trail feedback than a Downhill casing tire.
  • Tubeless Ready (TR): Tubeless tires allow riders to run lower air pressures for improved traction, lower rolling resistance, and less chance of flatting.
  
  
  
• Warranty: Limited Lifetime (Frame and Bearings)