The Bullit 4 is Santa Cruz’s most capable eMTB yet — a full-power enduro machine that rides like a downhill bike and climbs like it’s got something to prove. With 170mm of travel, mixed wheels, and SC’s most aggressive geometry to date, it’s built to handle steep, technical descents with composure and control. And thanks to the Bosch Performance Line CX system, it gets back to the top without missing a beat. Every detail of the Bullit 4 has been engineered for abuse, precision, and repeat sendability — from the oversized bearings and enclosed downtube to the size-specific geometry and dialed 4-bar suspension. It's the bike for riders who want it all: big travel, big power, and the freedom to ride more trails, more often. FEATURES: 170mm Front & Rear Travel: Maximum suspension travel delivers true downhill performance — plush on the hits, planted in the chunk. Bosch Performance Line CX Motor: With 85 Nm torque and 600 watts peak power (Now user upgradeable to 120 Nm torque & 750 watts peak power), this system delivers a smooth, powerful ride with quiet, responsive performance, smart display, wireless controls, seamless Bosch Flow App integration, and proven reliability. Aggressive, Adjustable Geometry: Slackest HTA (63.3°) and steepest STA (up to 78.7°) of any SC eBike, with flip chips for both geometry and progression tuning. Durable Carbon Frame: Available in C and CC options under 50 lbs, with oversized bearings, one-piece link, and reinforced frame details. Mixed-Wheel Setup: 29" front / 27.5" rear for playful, nimble handling that counterbalances the battery’s weight for confident descents. Ride-Ready Details: Tool mount under the toptube, long dropper compatibility, and no-special-tools serviceability. SPECS: Frame Carbon C MX 170mm Travel, 4-Bar Fork Fox 38 Float Performance Elite, Grip X2, 170mm Rear Shock FOX Float X Performance Elite, 205x65 Rims/Wheels Reserve 30|HD AL 6069 Hubs [F] E13 SL, 12x110, 6-Bolt, 32h [R] E13 SL E-Spec, 12x148, XD, 6-Bolt, 32h Spokes N/A Tires [F] Maxxis Assegai 29"x2.5", 3C, MaxxGrip, Double Down [R] Maxxis Minion DHRII 27.5x2.5, 3C DoubleDown Crankset SRAM GX Eagle Cranks, 155mm Chain SRAM GX Eagle T-Type, Flattop, 12spd Chain Guide OneUp Chainguide Front Derailleur N/A Rear Derailleur SRAM GX Eagle AXS T-Type, 12spd Cassette/Rear Cogs SRAM XS 1275 Eagle T-Type, 10-52t Shifters SRAM AXS Pod Bridge Handlebars OneUp Aluminum Bar, 800mm, 20mm Rise (S), 35mm Rise (M-XXL) Stem OneUp Stem, 42mm Brake Levers N/A Brakes SRAM Maven Bronze w/ SRAM HS2 200mm Rotor Pedals Sold Separately Saddle SDG Bel-Air V3 Max Lux-Alloy Atmos Seat Post OneUp V3 Dropper Post, 31.6 Motor Bosch Performance CX BDU38 Battery Bosch PowerTube Battery 600Wh Display/Controller N/A Max Assisted Speed 20mph Charger Bosch Accessories & Extras N/A