2026 Santa Cruz Bullit 4 C 90

If you're after an e-MTB that can handle serious mountain terrain without holding back, the 2026 Santa Cruz Bullit 4 C 90 is worth a close look. It pairs Santa Cruz's sharp enduro geometry with a Bosch Performance Line CX motor that's built for steep climbs and rough descents. The bike feels solid and confidence-inspiring, built to shrug off the kind of abuse that would leave other bikes begging for mercy.

Suspension

The suspension setup is dialed for aggressive riding. Up front, the FOX 38 Float Performance fork offers 170mm of travel and a GRIP damper. This gives you steady, controlled handling over fast, rocky sections. Out back, the FOX Float X Performance shock keeps things plush on the biggest hits but won't slow your pedal cadence when you're headed uphill. FOX FLOAT X is engineered to meet the demands of aggressive Trail riders. It delivers sophisticated damping and fade-free performance on the roughest terrain. It's designed for outstanding durability while remaining impressively lightweight. The Performance series is the more affordable series of the FLOAT X lineup and focuses on durability, consistency and comfort with simplified adjustments for ease of use.

Drivetrain

Shifting is a snap with the SRAM 90 Eagle T-Type 12-speed drivetrain. It's designed to stand up to the extra torque from the motor while delivering crisp, reliable gear changes. SRAM calls it the best mechanical shifting on the planet. The wide 10-52 cassette range covers technical climbs and open descents without needing to think twice. Shorter, 155mm E13 Helix eSpec cranks keep your pedals from snagging and improve your power delivery where it counts. Single-click SRAM shifters mean fewer chances for chain damage and faster gear changes when trail demands ramp up.

Brakes

You'll also find a set of SRAM Maven Base brakes. Modulation and bite are well matched with 200mm rotors front and rear, so you won't lose confidence on long, steep drops.

Wheels and Tires

The wheels and tires are built to absorb hard landings and rough, unpredictable terrain. The aluminum Reserve 30|HD rims hold up well under pressure, and the E13 SL hubs are sized and spec'd for e-bike abuse. Front tires use the Maxxis Assegai 29 x 2.5" for grip and control, while the rear features the Maxxis Minion DHRII 27.5 x 2.5". This offers reliable traction and durability exactly where you need it.

Cockpit

The cockpit is practical, stable, and intuitive. A wide OneUp aluminum handlebar with 35mm rise helps keep you balanced while the 42mm stem adds direct steering feel. The OneUp dropper post lets you lower your saddle quickly to tackle gnarly sections or get low for steeper lines. The SDG Bel-Air V3 saddle balances comfort and control for long days pushing your limits, and an FSA IS-2 headset keeps steering smooth and precise.

Motor and Battery

Power comes from the Bosch Performance Line CX motor with 85Nm of torque. That means strong, natural pedal assistance whether you're smashing steep climbs or threading through tight technical spots. The battery's a sleek, integrated Bosch PowerTube 600Wh, giving you the juice for all-day rides without bulky frame add-ons.

Overview

The Bullit 90 is a bike that won't quit when the trail gets steep or rough, and will keep up on everything from bike park laps to backcountry missions.