Santa Cruz Bullit 4 Carbon C – GX AXS

The Santa Cruz Bullit 4 Carbon C is designed for riders who seek out the steepest, roughest and most technically demanding terrain, the Bullit delivers the poise of a gravity bike with the climbing support of a powerful Bosch motor. Its Carbon C frame is engineered around a mixed-wheel layout, combining a fast-rolling 29er front wheel with a 27.5″ rear for sharp handling, improved clearance and stable performance on unpredictable, high-speed descents.Key Features:Frame: Carbon C MX frame, 170mm travel, DH-inspired geometryFork: FOX 38 Float Performance Elite, 170mmRear Shock: FOX Float X Performance Elite, 170mmDrivetrain: SRAM GX Eagle AXS T-Type, 12-speedBrakes: SRAM Maven Bronze hydraulic discsWheels: Reserve 30|HD MX; Maxxis Assegai & DHR IIFeature: Mixed-wheel design for agility and stabilityFinance: Available with 0% APR financeDrive Information:Motor: Bosch Performance Line CX, max torque 120NmBattery: Bosch PowerTube 600WhUser Interface: Bosch display with compact remoteWith 170mm travel front and rear, the Bullit draws heavily from downhill bike design. The FOX 38 Float Performance Elite fork provides stiffness and control when charging into chunky terrain, while the Float X Performance Elite rear shock delivers a balanced, supportive feel through big hits and repeated impacts. This suspension package allows the bike to maintain composure on demanding trails while remaining agile enough for technical features and tight switchbacks.SRAM’s GX Eagle AXS T-Type drivetrain brings wireless 12-speed shifting with impressive durability and smooth engagement, designed to handle the torque loads of e-MTB use. Powerful braking comes from SRAM Maven Bronze callipers, paired with large rotors for dependable modulation and control when gradients steepen. Reserve 30|HD alloy wheels add strength and reliability, wrapped in Maxxis Assegai and Minion DHR II DoubleDown tyres for serious grip and puncture protection.Bosch’s Performance Line CX motor supplies up to 120Nm of torque, making climbs more manageable and helping you preserve energy for the ride down. Paired with the 600Wh PowerTube battery, the system provides a balance of power and range ideal for longer or steeper mountain routes. The Bosch display and remote offer intuitive control, keeping your cockpit clean and functional.Whether you’re tackling lift-accessed descents or exploring rugged mountain terrain under your own power, the Bullit 4 combines downhill confidence with e-bike uplift when you need it most, making every trail feel within reach.Bosch Performance Update 2.0Bosch have dropped a fresh update for the Performance Line CX and CX-R motors, and it’s a big one for riders who want more punch on the trails. The update is available for the latest generation motors with the codes BDU384Y and BDU386Y, and it can be installed straight from the Bosch eBike Flow app. Nice and easy.Once you’ve downloaded Performance Update 2.0, you can crank the motor up to a huge 120 Nm of torque, with up to 600% support and 750 watts of peak power. Bosch have also tweaked things so the motor can hold that power for longer when the riding conditions allow.The 600% support figure only kicks in between 0 and 15 km/h, so it’s all about helping you power up steep climbs and tricky sections. The maximum assisted speed stays the same at 25 km/h.As with previous Bosch updates, you can still customise the motor settings in the app to suit your riding style. Whether you want maximum power for steep tech climbs or a more natural feel on longer rides, you can dial it in how you like it.Performance Update 2.0 is available for all CX Gen 5 and CX-R Gen 5 motors. It also brings Extended Boost (Bosch Overrun) and support for the new drivetrain tensioner system, which helps reduce lag when you get back on the pedals. Bosch are also adding more features and connectivity options, including Garmin integration and new power supply options.One thing worth keeping in mind — more power means more stress on drivetrain components, so increased wear is expected over time. If you’re unsure about compatibility, servicing or upgrading components, get in touch with us and we’ll be happy to help.