Firebird MX Pro X0 Eagle Transmission MX

Pivot offers the Firebird MX across a premium price spectrum, starting with the Ride tier and topping out with the Team builds. The entry-point Ride models feature Fox Performance suspension, DT Swiss M1900 alloy wheels, and either SRAM mechanical or GX Eagle Transmission drivetrains. These builds provide the same carbon frame features but use heavier, less refined components to keep the price relatively accessible.

The Pro tier represents the sweet spot for privateer racers. These models upgrade to Fox Factory suspension—including the highly tunable Grip X2 fork damper and Float X2 shock—along with DT Swiss XM1700 alloy wheels. Drivetrain options here split between Shimano XT/XTR blends and SRAM X0 Eagle Transmission, paired with either Shimano XT or SRAM Maven Silver brakes. Pivot also offers Pro and Team builds with Fox's electronic DHX Neo Live valve suspension for riders seeking automated damping adjustments.

At the top end, the Team builds spare no expense. They feature Reynolds Blacklabel carbon wheels with Industry Nine hubs, Race Face Era carbon cranks, and flagship drivetrains from Shimano or SRAM. Across all builds, Pivot specs Continental Kryptotal tires and its own Phoenix cockpits.

Reviewers agree that the Firebird MX is a demanding, highly capable race bike that requires constant rider input. The DW-link suspension and stiff carbon chassis create a highly efficient pedaling platform, with testers noting it climbs with surprising urgency. However, this rigidity translates to a firm ride on descents. The suspension is supportive rather than plush, meaning the bike needs to be pushed hard to perform. As one tester noted, the rear end feels "plugged up in a way that feels like it's eating energy" (YouTube), keeping the chassis settled at high speeds but transmitting feedback on smaller impacts.

When ridden aggressively, the bike is exceptionally precise. The lowered bottom bracket creates a "sunk into the bike" (YouTube) sensation that encourages riders to weight the front wheel and drive through corners. Testers praised its ability to change direction rapidly, noting that "railing corners feels awesome" (BikeRadar) when the rider is fully committed.

The primary tradeoff is a distinct lack of forgiveness. If a rider backs off the pace or gets lazy, the stiff frame and firm suspension can quickly lead to fatigue. Testers warned that the bike will "bang and bash you about" (BikeRadar) if you lose focus. Additionally, the stock Continental Kryptotal tires drew mixed reactions; they performed well in dry dirt but lacked damping and traction on wet, greasy roots, prompting recommendations for an immediate upgrade in certain climates.