PIVOT Firebird Carbon 29 Race X01 Eagle Mountain Bike
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FIREBIRD CARBON 29 RACE X01 EAGLE MOUNTAIN BIKE
If you’ve got a penchant for riding the rowdiest lines on your local mountain, or you’re trying to set the fastest possible time on a gnarly enduro stage, the Firebird 29 is an ideal companion to help you achieve these goals. What’s more, the Firebird is lightweight and efficient enough to pedal all day in the backcountry—a feat that few bikes in this category can lay claim to. The lively feel of the DW-Link suspension platform combined with a strong, lightweight frame and progressive enduro geometry make this bike a joy to ride on any trail. You’ll enjoy confidence-inspring stability in the steeps, nimble handling on flow trails, and an efficient pedaling platform that let’s you pedal all day long without wasting your energy on the climbs. Pivot somehow manages to pack 170mm of front and 162mm of rear travel into a bike that’s not just ready for the Enduro World Series, but also ready to tackle your local trails with a newfound haste.
The Firebird 29 borrows heavily for the design and geometry queues of the 27.5in Firebird and its Phoenix DH Carbon siblings, with long reach numbers and 45mm length stems across the board. The Firebird 29’s super-short chainstays sit at 16.96-inches, thanks to the 12 x 157mm Superboost Plus spacing allow for snappy handling, quick power transfer, and easy lifting of the front wheel up and over techy climbs, and for those blessed with the talent—manualing. Also contributing to the climbing chops are its steep seat tube angle of 74.5 to 75-degrees (based on its adjustable flip-chip position and lower headset cup selection), which places you right on top of the pedals and prevents the front wheel from wandering on steep switchback climbs while its adjustable 65.5 to 65-degree headtube angle lengthens the bike’s wheelbase for excellent stability that gets better the faster you rip down notoriously steep, gnarly terrain. Growing the wheelbase and getting the front wheel too far out in front of the rider has diminishing returns if you can’t properly weigh the front tire for proper traction, so Pivot specs a fork with a 44mm offset that allows you to reap the benefits of a slack head tube while getting the front wheel a little closer to the steering axis. Also, the headtube accommodates an optional 17mm lower headset cup that is beneficial when swapping between wheel sizes or further fine-tuning the bike’s geometry.
As with all of Pivot’s full-suspension frames, this Pivot Firebird 29 receives the much-lauded DW-link suspension platform. Two things you’ll really be looking for in a bike that is sporting nearly 6.5-inches of travel are supple stroke and efficient pedaling and the DW-link provides both in spades. You’ll find its travel is plush off the top and feels very linear, almost coil-like, with plenty of ramping at the end stroke so you don’t blow through the travel while also providing plenty of support to reduce the dreaded mid-stroke wallow. This way, you can pedal in a manner that you’ve never experienced on a 160+ millimeter bike. DW-link also affords a fully active suspension, even under braking, and unlike some designs, it doesn’t get hung up on square-edge hits, which allows you to plow up and over ledgy rock faces and rooty terrain without losing momentum and requiring you to dismount in shame. Spring and damping duties are handled by FOX’s Factory Float X2 shock and join the Phoenix DH-inspired upper and lower links, which are super wide and beefy. Also, these beefier linkages tie together the dual-upright swingarm supports, thus adding impressive amounts of frame stiffness and durability. Also worth noting is the flip-chip on the upper link doesn’t affect the shock rate, so you can dial in the geometry for the riding on tap without having to fiddle with your shock settings.
We made mention of the rear dropout spacing above and we think it’s worth mentioning again for those unfamiliar and even for those that are—mainly because there are plenty more bikes in the pipeline that will soon be sporting Super Boost Plus spacing. The wider axle spacing allows the hub’s flanges to push further out, thus helping to even spoke tension on either side of the rear wheel. Furthermore, the improved bracing angles build up a 30% stiffer rear wheel. The other added benefit of the wider rear end spacing lies in the shorter chainstays that still play nice with wider rubber. You might be thinking that the wider dropout spacing splays the chainstays out further and it becomes an easier target for heel strikes. This would be true, but Pivot addresses this with chainstay shaping that swoops out of the way with clever indentations exactly where your heels would rub. In fact, we can attest on a recent ride in Moab that we experienced zero interactions with the Super Boost Plus chainstays despite using the same pedal and shoe combo and getting the occasional strike on our non-Super Boost Plus rigs.
Balancing the build with materials that can handle the terrain, the Firebird 29 is crafted from a painstakingly precise mix of composite fibers and resin, then meticulously laid to create a frame that finds the happy medium of strength, stiffness, and weight. The chassis itself benefits from Pivot’s hollow-core internal molding process for uniform, controlled wall thicknesses and material distribution. This process virtually eliminates inconsistencies and resin pooling, increasing structural integrity while targeting areas for weight loss. Simply put, it’s the best way to make a strong and lightweight carbon fiber frame.
Pivot realizes that building a great bike requires a holistic approach and all the components on its builds are very similar to ones we would select if we were building the frame from the ground up. This Firebird 29 Race X01 Eagle build gets the FOX Float DPX2 Performance shock to soak up trail chatter and big hits. It’s highly adjustable and tuned specifically for the DW-Link’s kinematics, and has two settings so you experience a bottomless feel when bombing descents, and with a flip of a switch, two different firmer modes offer support for fire road climbs and undulating trails so you can ride it all with maximum efficiency. Up front, the FOX 36 Performance fork’s burly chassis and oversized stanchions offer sure-footed tracking through ruts, roots, and bombed out braking bumps. Other features include a mix of SRAM’s Eagle drivetrain, offering range for days offering enough gear to get to the top of the climbs without spinning out on the way back down and finding the perfect gear for all of the ridgeline riding in-between. SRAM Code RSC brakes offer plenty of power and controlled modulation, while the DT Swiss M1900 wheelset with 30-millimeter inner width plumps up the Maxxis Minion rubber that works so well across different terrain. Finally, the Firebird 29 is given another callback to its Phoenix roots with the Phoenix finishing kit that includes its aluminum bar, 35mm clamp stem, and all-new grips. And since Pivot knows they built this bike for a rowdy crowd, scuff-guards are included on the downtube/bottom bracket area and drive-side seat and chainstays so your carbon bike stays well protected, looking like new, and is quiet as you up your game deep in the woods, desert, or bike park.
- A long-travel 29er that wins enduros and conquers backcountry rides
- Redesigned frame and linkage is remarkably strong and stiff
- Slack head tube and long reach builds confidence on descents
- 74.5 to 75-degree seat tube angle for optimal climbing position
- 162mm of bump-taming DW-Link suspension still pedals efficiently
- Precision hollow-core carbon sheds grams and boosts strength
- Super Boost rear spacing accepts both 29in and 27.5+ wheel sizes
- FOX DPX2 shock and 36 fork deliver optimal traction and support
Large, Medium, Small, X-Large, X-Small
Blue/Yellow, Sand/Silver Pine
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