The Bullit 4 pairs 170mm of front and rear travel with an improved 4-bar suspension design that stays composed when things get steep, fast, and loose. It climbs better than a long-travel bike should, with refined anti-squat tuning to keep you planted and comfortable under power.

Adjustable progression lets you choose your rear-end feel, whether you prefer bottomless traction or a snappy pop. Size-specific chainstays ensure balanced handling across all frame sizes, and the stiff one-piece rear link keeps everything tight and responsive. Go faster, ride harder — the Bullit 4’s got you.

The Bosch Performance Line CX system puts full-power control at your fingertips. With 85 Nm of torque, 600W peak output, and a compact 600Wh internal battery, the Bullit 4 climbs like it’s got something to prove — and with the optional PowerMore 250Wh range extender, it can go even further.

The motor delivers assist that feels natural and consistent, with multiple ride modes to match your terrain and style. Wireless controls and the Bosch Flow App give you access to firmware updates, GPS route planning, and deep ride customization. The Bosch system helps you conserve energy, ride longer, and repeat the fun — again and again.

Aggressive and capable, the Bullit 4’s geometry is designed to give you total control in all directions. The 63.3° head tube angle (low setting) keeps things slack and stable when the trail gets steep, while the 78.7° seat tube angle keeps your weight forward and efficient on the climbs.

Flip Chips allow for quick adjustability, so you can tailor the bike to suit your terrain or riding style. Mixed wheels — 29” up front, 27.5” in the rear — offer the best of both worlds: rollover confidence with tight, responsive handling out back. Whether you're climbing techy singletrack or bombing down off-camber rock gardens, this geometry delivers balance, confidence, and straight-up fun.

Santa Cruz doesn’t build bikes to sit pretty. The Bullit 4 is designed to get ridden hard — and hold up to it. Its carbon frame is strong, light, and comes in C or CC layups, all under 50 lbs. Oversized bearings, an enclosed downtube, and a one-piece rear link add stiffness and long-term durability. The seatstay bridge helps the rear end track clean and stay tight under pressure.

You’ll find thoughtful touches everywhere: tool mount under the top tube, long-dropper compatibility, 5mm hardware throughout, and no proprietary headaches when it comes time to wrench. Add in lifetime warranties on the frame, bearings, and Reserve carbon rims, and you’ve got a bike that’s built to last — and last hard.