Firebird 29 Ride GX Eagle Transmission 29

The fifth-generation Pivot Firebird is a dedicated enduro race bike that pairs 165mm of rear travel with a 170mm fork. Rather than reinventing its core identity, Pivot focused this update on extensive chassis configurability and practical frame features. The addition of downtube storage and refined cable routing cleans up the frame, while a suite of flip-chips and adjustable dropouts allows riders to tune the bike for specific tracks. Built around the DW-Link suspension platform, the Firebird prioritizes pedaling efficiency and a sporty, engaging ride character over pure plushness. It is designed for proactive riders who want a precise, energetic machine that responds well to aggressive inputs. Available in full 29-inch or mixed-wheel configurations, it remains a premium option for enduro racers and aggressive trail riders who value a highly tunable, efficient platform.

$7,699Gen V5
Pivot Firebird 29 Ride GX Eagle Transmission 29
Build
Size
Stack625mm
Reach440mm
Top tube596mm
Headtube length95mm
Standover height682mm
Seat tube length385mm

Fit and geometry

The Firebird’s geometry balances high-speed stability with surprising low-speed agility. A slack head tube angle and generous reach provide a secure, centered stance on steep descents, while the relatively steep seat tube angle keeps the rider comfortably upright and efficient during long climbs. The frame utilizes size-specific chainstays to maintain consistent weight distribution across the size range, but Pivot now includes a Swinger dropout system that allows riders to adjust the rear center length by eight millimeters. This lets riders choose between a slightly more stable, grounded feel or a shorter setup that makes it easier to lift the front wheel.

Further geometry tuning comes from a high/low flip-chip in the upper linkage, which alters the bottom bracket height and head angle. The low setting is generally preferred for maximum cornering traction, while the high setting offers extra pedal clearance and a slightly quicker steering response. Additionally, the frame uses an oversized straight head tube, giving riders the option to install aftermarket headsets to fine-tune reach or head angle. The extra-small frame is designed exclusively around a mixed-wheel setup, while larger sizes can accommodate either configuration.

Full specs

Frameset

Frame

Pivot (model unspecified)

Fork

Fox 38 Performance, 29in, 44mm offset, GRIP, 170mm

Rear shock

Fox Factory Float X2 (2025)

Groupset

Shift levers

SRAM AXS Pod Controller

Rear derailleur

SRAM GX Eagle Transmission, 12-speed

Cassette

SRAM GX Eagle Transmission XG-1275, 12-speed, 10-52T

Chain

SRAM GX Eagle Flattop, 12-speed

Crankset

SRAM GX Eagle DUB, 32T — 165mm (XS-SM), 170mm (MD-XL)

Bottom bracket

SRAM DUB (standard unspecified)

Front brake

SRAM Maven, 4-piston hydraulic disc

Rear brake

SRAM Maven, 4-piston hydraulic disc

Front rotor

null

Rear rotor

null

Wheelset

Front wheel

DT Swiss M 1900 wheelset, 30mm internal, DT Swiss 370 hub, 15x110 front — mixed or 29in

Rear wheel

DT Swiss M 1900 wheelset, 30mm internal, DT Swiss 370 hub, 12x157 rear — mixed or 29in

Cockpit

Stem

Phoenix Team Enduro/Trail V1 — 35mm (XS), 45mm (SM-XL)

Handlebars

Phoenix Ride Low Rise Aluminum — 780mm (XS-MD), 800mm (LG-XL)

Saddle

Phoenix WTB Ride High Tail Trail (XS, SM) / Phoenix WTB Ride Volt, Medium Width (MD-XL)

Seatpost

TransX (XS) / SDG Tellis (SM-XL)

Grips

Phoenix Factory Lock-On

Builds

Pivot offers the Firebird in a premium ten-build lineup divided into Ride, Pro, and Team tiers, with options for both Shimano and SRAM drivetrains. The entry-level Ride builds feature Fox Performance suspension, aluminum DT Swiss wheels, and reliable mechanical or entry-level electronic drivetrains. Moving up to the Pro tier introduces Fox Factory suspension with the highly adjustable Grip X2 fork damper, alongside higher-end DT Swiss alloy wheels and either Shimano XT Di2 or SRAM X0 Transmission drivetrains.

At the top end, the Team builds spare no expense, outfitting the bike with Fox Factory suspension, Reynolds carbon wheels laced to Industry Nine hubs, and flagship Shimano XTR Di2 or SRAM XX Transmission groupsets. Across the Pro and Team tiers, Pivot also offers NEO variants equipped with the Fox Live Valve Neo wireless electronic shock for automated suspension tuning.

Value is a complex proposition for the Firebird, as even the base models sit at a premium price point. However, reviewers note that Pivot does not cut corners on the foundation, equipping all builds with high-quality Continental enduro-casing tires, powerful four-piston brakes, and the same meticulously finished carbon frame featuring the integrated downtube storage system.

Reviews

Reviewers consistently characterize the Firebird as a highly efficient and energetic enduro bike that rewards an active riding style. The DW-Link suspension earns widespread praise for its pedaling platform, making the bike surprisingly eager on climbs and rolling terrain. Rather than muting the trail entirely, the suspension provides a supportive, taut feel that helps generate speed out of corners and through compressions. As one tester noted, the bike is "impressively accurate over the roughest, fastest terrain" (BikeRadar), though it requires a rider willing to take charge.

This firm, race-oriented tune means the Firebird is not a passive plow bike. Testers observed that while it handles large impacts with composure, it can feel less forgiving on small chatter if the rider is not pushing hard. The stiff carbon chassis contributes to this precise handling, but some reviewers found the front end harsh, occasionally swapping the stock carbon handlebar or tires to improve damping.

The extensive adjustability is a major highlight, allowing riders to meaningfully alter the bike's character. The suspension progressivity chip offers a noticeable change in bottom-out support, while the wheel size options drastically shift the bike's demeanor. Running a smaller rear wheel makes the chassis "substantially more playful and eager to slash the rear end around" (Blisterreview), though testers agree the standard 29-inch setup remains the most "well-balanced and planted on the descents" (Flow Mountain Bike).