Pivot Cycles
Pivot Cycles

The Holy Grail of Long-Travel Bikes

The Firebird is the no-compromise, Holy Grail of long-travel mountain bikes; it’s both an enduro bike that devours blazing descents and a technical climber that gains elevation astonishingly well.

For enduro racers, the tough and light Firebird’s peerless climbing traction, descending capability and instant acceleration makes it the perfect choice for the steep, punishing courses of the EWS. For park riders, the Firebird’s long front-center and short chainstay combination provides that nimble, snappy feel that encourages bold line choices yet allows you to stay in complete control at World Cup speeds.

Values in:

Firebird Carbon

Seat Tube Length (C-T)
15.50 in
16.75 in
18.00 in
19.50 in
Top Tube Length
23.37 in
24.24 in
25.12 in
26.02 in
Head Tube Length
3.94 in
4.33 in
4.72 in
5.12 in
Head Tube Angle
Seat Tube Angle
Chain Stay Length
16.93 in
16.93 in
16.93 in
16.93 in
Bottom Bracket Height
13.75 in
13.75 in
13.75 in
13.75 in
Standover Height
27.87 in
28.23 in
28.23 in
28.46 in
46.26 in
47.41 in
48.37 in
49.32 in
23.07 in
23.43 in
23.78 in
24.13 in
16.54 in
17.52 in
18.31 in
19.09 in

Graphics, colors, and specifications are subject to change without prior notification.

Bomber—yet ultra light—full carbon frame featuring leading edge carbon fiber materials and Pivot's proprietary molding technology

170mm of supple-yet-efficient dw‐link® suspension

Ultra-adjustable Fox Float X2 rear shock (on most build kits)

Long-and-low geometry for a confident, stable stance

Ultra-short, 430mm (16.95”) chainstays make easy work of the tightest trails

Equipped with a burly Fox 36 Factory 170mm-travel fork

Fits tires up to 27.5x2.5” wide

12 x 148mm Boost™ rear spacing for additional stiffness and control

Hassle-free, full-length, internal cable routing. Fully Di2 compatible

Fits a wide range of riders (between 5'4" and 6'7")

10-year warranty


Pivot utilizes a proprietary hollow-core internal molding technology to create the highest quality handmade carbon frames available.

Long days both up and down the mountain require a strong chassis that is light enough to make climbing fun. The heart of the new Firebird is a uniquely designed Pivot carbon frame with a Phoenix DH-inspired double wishbone rear triangle and ultra-stiff linkage design. With our own hollow core, internal, high compression carbon molding process and the right combination of composite materials and shapes, we are able to deliver a high end frame that meets the same stringent testing requirements for strength and stiffness as our downhill bike at a significantly lower weight, making it possible to build a complete bike below 28 pounds.


Say hello to the easiest, cleanest and quietest cable routing solution – beloved by mechanics and Pivot owners alike.

Say goodbye to fishing for cables and never listen to rattling housing again. This future-proof internal routing offers huge access ports for fast, easy assembly, universal housing clamps that keep your bike quiet, full Shimano Di2 integration, and compatibility with all gearing and dropper configurations. The Pivot Cable Port System is easily updated to accommodate new technologies, making it the only future-proof routing system available.

The Firebird features the latest version of the Pivot Cable Port system. This system offers easy, clean internal routing of shifters, brakes and droppers and features large ports for quick and easy routing and service. Housing clamps each entry and exit point keep all your lines 100% secure and quiet, because nobody likes a noisy bike. For those seeking every advantage, the Firebird offers full Di2 electronic shifting integration co-developed in partnership with Shimano.


Pivot's long and low geometry puts the rider "in" the bike.

Taking a page from the Phoenix DH Carbon’s progressive geometry, the Firebird features some of the longest reach measurements in the sport, combined with super-short, 16.95”chainstays. The resulting long front-center keeps the front wheel in contact with the trail on the ups and gives the Firebird a perfectly balanced, highly capable technical climbing ability over rough terrain. When descending, the Firebird’s long and low geometry puts the rider “in” the bike for increased stability at high speeds and on steep technical challenges while the short chainstay measurements provide a maneuverable, dynamic ride that makes it easy to put the bike where you want it.

Assembled to Perfection

Pivot complete bikes are more than the sum of their parts – every single component is selected to give you the best experience on the trail and our assembly process is the best in the business, bar none.

The Firebird complete bike models are designed with high-performance, rugged riding in mind, with both durability and light weight as key considerations. Pivot offers a full range of specification levels to meet your performance requirements, and every build is one we ride ourselves. Visit our complete bike tab for complete details on the many different available for your bike. We take quality and workmanship seriously at Pivot, and know that the details are what make a great rider experience. Every Pivot Cycles frame undergoes a 28-step assembly and quality control check to ensure that every ride on the Firebird exceeds your expectations.


At Pivot, we believe the bike should fit the rider, not the other way around.

Our approach to rider-size-specific geometry relies on a balanced fit and adjusted geometry to maintain correct wheelbase length and handling to properly accommodate the proportions of a smaller rider. Our smaller sizes are built with shorter head tubes to create more stand-over height, enabling smaller-statured riders to achieve a centered, athletic, position on the bike with tons of clearance over the top tube – essential to descending and cornering with confidence and speed. Size-specific carbon molds enable Pivot's engineers to utilize smaller tube diameters and unique carbon layups for lighter size small and size extra small frames – all while maintaining the same strength standards, pedaling efficiency and frame stiffness as are found in larger size Pivot bikes. Lighter shock tuning and leverage rates enable us to achieve the ideal ride feel for a diverse range of rider weights and ride styles. Pivot complete bike specifications intelligently address real-world rider differences, with the option to choose women’s specific saddle on any size and shorter cranks on our small frames.



Pushing the pace both up and down the mountain requires a strong chassis that’s still light enough to make climbing fun. The heart of the new Firebird is a cutting-edge, carbon frame with a stout, double-wishbone rear triangle and ultra-stiff linkage design.  Thanks to our own hollow-core, high-compression carbon molding process and an exacting combination of composite materials and shapes, we are able to deliver an ultra-light frame that meets the same stringent testing requirements for strength and stiffness as our World Cup downhill bike. How light are we talking? It’s possible to build a complete Firebird weighing less than 28 pounds.


The Firebird Carbon uses the best attributes of Dave Weagle’s renowned dw‐link® rear suspension to achieve the ultimate in both downhill and climbing performance. The dw-link’s anti-squat and variable wheel travel path traits yield both the square-edge bump absorption of a downhill bike and the crisp, pedaling efficiency of a shorter-travel trail bike. It’s a hell of a combination.


Building on its reputation as the bike for all-day missions on black diamond terrain, the Firebird features long measurements combined with a 65-degree head angle to deliver unmatched stability and handling. Taking a page from the Phoenix DH Carbon’s progressive geometry, the Firebird combines some of the longest reach measurements in the sport, with super-short, 16.95” chainstays.  The Firebird’s long and low geometry gives you increased stability at high speeds and on steep technical challenges, while its short chainstays provide a maneuverable, dynamic ride that makes it easy to put the bike precisely where you want it.


Next, we equipped the Firebird with Fox’s class-leading Float X2 shock*. Our top racers consistently choose the Fox Float X2 air shock for its incredible control, tuneability and plush coil-like feel. Or to put a finer point on it—this shock gets the nod because it allows you to hit downhills faster with greater confidence. On top of that, the Float X2’s climb switch makes the Firebird an Enduro-style rider’s best choice for getting up and down the mountain. To match the Firebird’s rear suspension, we’ve paired it with the latest 170mm Fox 36 Factory Boost fork – the perfect choice for aggressive, balanced handling in technical terrain.*

* Pro XT/XTR Pro and Pro XO1 Eagle bikes feature the Float X Performance rear shock, which features hard-anodized body and independent, low-speed compression and rebound adjustments. XT Race builds feature the Float X2 Performance rear shock and Fox 36 Performance Boost fork.



Which size bike should I purchase?

To ensure the best sizing, we recommend that you visit your local Pivot dealer to get a professional fit and refer to our geometry chart to check your measurements. We suggest that you pick your Firebird size based on your riding style. 

The Firebird features long and low geometry with a sizing philosophy similar to the Phoenix DH. The Firebird’s reach measurements push new limits (they are long). Additionally, with both shorter seat tube and head tube measurements per size, riders have a wider range of bike sizes to choose from depending on your riding style and preferences. Some riders may find it comfortable to go up or down a size depending on their reach and stem length preferences. Below is a general guideline: 

Small: 5'4.5" – 5’9”
Medium: 5'7” –5’11”
Large: 5'10” – 6’3”
X‐Large: 6'2” +

How do I set the sag on my Firebird?

We make it easy to get the best ride out of your Pivot bike with a simple sag indicator already installed on your bike, and this follow-along video featuring our own Bernard Kerr:


How much does it weigh?

Variables in frame size, discrepancies in scale calibrations, and method of weighing (with or without pedals and such) all lead to inaccurate comparisons, so we choose not to publish our bike weights. Pivot bicycles are among the lightest available, but the weight is only one of many factors that make a great bicycle. Other aspects such as frame stiffness, strength, durability, and ride quality are just as important as weight to our engineers when designing our Hollow Core Carbon and aluminum frames. Instead of comparing grams online, we suggest you visit your local Pivot dealer and see our attention to detail, smart, high value spec, and class leading features. Bring a scale if you’d like, but take just one demo ride and you’ll feel why Pivot Cycles are the most well-rounded, highest performing bicycles on the market and in many cases, yes, it’s the lightest as well.

What dropper post length should I use on my Firebird?

The Firebird uses a 30.9mm size post and features a low stand-over height and short seat tubes to allow the use of longer travel dropper posts and/or more flexibility for a wider range of rider sizes. There are some limitations that each dropper post can accommodate for each frame size based on the individual riders saddle height, so it is important to check fit before choosing the travel and model of dropper post for your Switchblade. Use the linked guide to find the right post for your bike:  https://www.pivotcycles.com/wp-content/uploads/2016/08/Firebird-Dropper-Fit-Guide.pdf

What hub/wheel spacing does the Firebird use?

The Firebird uses the Boost 148mm X 12mm hub/wheel spacing. This is a new hub design with wider flanges so you cannot take a current 135mm, 142mm, 150mm, or 157mm hub and change end caps to convert an existing hub.

What is the thread pitch on the rear axle?

Pivot uses a 1.5 thread pitch on the rear thru axle. You can order one through our online store here: http://www.pivotcycles.com/store/index.php?route=product/product&path=60&product_id=132

What travel fork can I use on my Firebird?

The Firebird was designed a 170mm fork. The maximum travel length that can be used on the Firebird is 180mm travel.

What is the fork offset on the Firebird?

The fork offset for the Firebird is 44mm.

How wide of a tire can I run on the Firebird?

The Firebird was designed to run 27.5” wheels with up to 2.5” tires. We are partial to the new line of Maxxis Wide Trail tires that come in either 2.4” or 2.5” depending on the model. All Firebird complete bikes come with 2.5”Maxxis Minion DHF 2.5” Wide Trail front and 2.4”Minion DHRII Wide Trail rear. The Firebird is not 27.5+ compatible.

What size seatpost does the Firebird use?

The Firebird frame uses a 30.9mm seatpost.

What size seat clamp does the Firebird use?

The Firebird frame uses a 34.9mm or 35mm (as some manufacturers call it) seatpost clamp.

What front derailleur does the Firebird use?

The Firebird uses an e-type Shimano side-swing style front derailleur only. Shimano produces the new e-type side-swing front derailleur in Deore and SLX for 10 speed drivetrains and XT and XTR for 11 speed drivetrains.

Can I run a chain guide on the Firebird?

Yes. The Firebird features ISCG05 mounts on the frame. Most upper guides on the market will fit and you can either use the ISCG05 mounts or some of the more compact versions that attach to an E-Type front derailleur mount. For full upper and lower guides, we recommend the MRP AMG for the Firebird. What headset do I need?

What headset do I need?

The Firebird uses a ZS (zero stack) 49.6mm top and can also accept a standard 1.5 external top cup. This large upper cup design provides more room for riders wanting to experiment with angleset™ headsets to adjust front end geometry. The lower (bottom) cup is a (zero stack) 56mm size.

How large of a rotor will fit on the Firebird?

The Firebird was designed for a 180mm rear rotor and features a 180mm post mount design, so you cannot fit a 160mm rotor on the Firebird. A 203mm rotor will fit with the use of a post mount caliper adapter.

What type of rear brake adapter do I need?

No brake adapter is needed for a 180mm rotor. However, if you'd prefer to run a 203mm rotor, you would need a proper direct mount/post to post adapter to go from a 180mm to 203mm rotor.

What cranks and bottom bracket will the Firebird accept?

The Firebird will accept all cranks designed for the BOOST system and compatible with a press fit 92mm bottom bracket. BOOST system means that the rear hub spacing is 148mm and the chain-rings have been shifted out approximately 3mm from where a tradition crank designed for a 142mm rear hub would be so that the chainrings will line up properly with the new position of the cassette on the 148mm rear hub.

Can I run non-Boost™ cranks on my Firebird Carbon?

In some cases you can run a conventional non-BOOST 1X or 2X crank. The Race Face NEXT 1X and other Cinch system 1X cranks are dual compatible between standard 142mm and 148mm Boost rear ends. Some smaller chainring combination 1X (30 and 32T) Shimano XT and XTR 11 will also work. In some cases 2X standard cranks may also work with 24/34, 26/36 and 22/36 combinations. Shimano’s new 11 Speed XTR and XT standard cranks feature both 24/34 and 26/36 chainring options which work perfectly with the Mach 6 Carbon frame as Shimano’s chainline dimensions already tend to run wider than others in the market. There may be other 2X non- boost cranks available that will work although it is dependent on specific chainline and chainring size. If the chainline is not out far enough, the front derailleur clearance may be tight when shifting into the small ring as the front derailleur mount on the Firebird is also shifted outwards to accommodate the BOOST design.

What is the eye-to-eye shock length and stroke length on the Firebird?

The eye-to-eye shock length is 8.5 inches and the stroke length is 2.5 inches.

If I want to run a different brand of shock on my Firebird, what else do I need to know?

The Firebird shock uses M8 through bolt hardware on the front and no hardware on the rear. Shock spacer dimensions are 22mm wide front. On the rear of the shock, the spacer hardware and bushing will need to be removed as the strut mounts directly to the shock body. Some shocks may have a different spec then the Fox shock (that the Firebird Carbon is designed for) and may not fit properly. Also, as we cannot test every shock on the market, riders assume some risk if they choose a shock that does not fit properly or is not tuned correctly for the bike. The frame is designed around a large volume air can. We run medium compression valving and medium rebound damping.

Can I put a coil-over shock on my Firebird?

We do not recommend that you run a coil-over on your Firebird. The Firebird was designed to work with the progressiveness of an air spring. Running a coil-over shock on the Firebird Carbon will result in hard bottoming and could result in damage to the frame and shock. Additionally, the clevis design adds considerable leverage to the unsupported shock shaft and internal piston bushing on a coil shock that can result in premature wear of the shock and/or, a total failure of the shock shaft. For maximum performance and durability, we recommend staying with the Pivot spec’d FOX Float X2 shock (or DPX2 on our race builds). The Pivot Factory Racing DH World Cup team has the option of running either the FOX X2 air or coil on their DH bikes and each rider has found the air shock to offer better performance and control and ultimately faster times on the race course. However, if you want to run a different shock, then stick with an air shock such as the Rock Shox Super Delux or Vivid Air or another DH based air shock design that features a tunable spring curve. Any frame damage occurring due to shock failure from using any shock other than the Pivot supplied FOX Float X2 or DPX2 will not be covered under warranty.

What are the torque specs?

A detailed PDF of the torque specs can be found under the Tech Specs.