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Pivot Firebird Mountain Bike Frame

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Item # PIV0028

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Item # PIV0028

Description

Mountain biking has divided itself into so many distinct sects that it's becoming harder and harder to find one bike that can actually hold its own in any situation. If you like trail riding, a classic cross country bike will fit the bill, but if you throw in an occasional shuttle to quad-digit elevations, or plan on a trip to the North Shore, you're going to need something a bit more substantial. That's where Pivot Cycle's Firebird Mountain Bike Frame steps in.

A formidable descender, the Firebird packs 167mm (6.6in) of DW-Link rear wheel travel, but what's surprising is how it's equally capable when the trail turns back up the hill. The rear suspension makes this possible, by combining DW's anti-squat geometry with a FOX Racing Shox CTD Kashima. What you get is a bike that's fun to ride in any terrain because the suspension can do what it's supposed to do — let the wheel follow the ground.

DW-Link rear suspension actively works to counteract the effects on the suspension as you pedal or shift your weight around on the bike through a variety of trail conditions. With the Links controlling unwanted suspension squat, the lightly damped shock can respond to the trail surface with ultra-sensitivity. This affords the wheels the freedom to track surfaces of the trail, and to absorb low- or high-speed bumps without blowing through its travel. However, a sorted suspension design is worthless without a solid chassis. For that reason Pivot expertly crafts both the front and rear triangles out of hydroformed 6000 series aluminum. This provides a stiff, stable platform for the suspension to do its work. 3D hollow forged aluminum aligns grain structure and strengthens the material at select points of the frame. This makes the Firebird frame strong enough to endure serious downhills, yet it's light enough to build an all-out trail machine ready for Enduro and Super D events.

Pivot relies on sealed cartridge bearings, and the forged, CNC machined aluminum lower link contains eight of them — two at each corner. This increases the durability of this workhorse component, stretches service life, and optimizes suspension function. The upper link is made of carbon fiber for strength and light weight, and since it sees less stress than its lower counterpart, Pivot relies on four bearings here to do the job. And to keep weight to a minimum, the pivot axles are all made from aluminum.

The Firebird uses a 67.1-degree head tube angle that ensures it's stable without being too slow on climbs. If you want to favor marathon use, Pivot recommends a 160mm fork. And if you want your Firebird to be a downhill monster, it'll happily run a 180mm fork. For the best of both worlds, you can run a travel adjust fork. Adding to this bike's versatility is a 1.5in head tube. Unlike a tapered front end, you can use Cane Creek's Angle-Set to fine tune the head angle +/- one degree.

A few other standout details on the Firebird are the ISCG05 chain guide mounts, a 73mm bottom bracket shell, and a floating front derailleur mount. This allows popular chain guide use, precise front derailleur placement, and multiple crank/bottom bracket options. It requires an E-type Shimano front derailleur, and you'll need a 30.9mm seatpost. The dropouts take a 12x142mm thru-axle (axle included) and have post-style disc brake mounts.

The Pivot Firebird Mountain Bike Frame is available in four sizes from Small to X-Large and in the colors Anodized Jet Black or Alpine White/red. Please note that this frame was designed for 26-inch wheels. For 27.5-inch compatibility, check out the Firebird 27.5.

Please note that US Pivot dealers are prohibited from shipping Pivot bicycles outside of the United States and US territories.

Tech Specs

Frame Material:
aluminum
Suspension:
full-suspension
Pivot Type:
DW-Link
Rear Travel:
6.6 in
Rear Shock:
FOX CTD Kashima
Recommended Fork Travel:
160 - 180 mm
Rear Axle:
12x142 mm thru-axle (included)
Head Tube Diameter:
1.5in
Front Derailleur Mount:
Shimano E-Type
Bottom Bracket Type:
73 mm
ISCG Tabs:
ISCG 05
Seatpost Diameter:
30.9 mm
Cable Routing:
external
Accessory Cable Stops:
seat dropper
Replaceable Rear Derailleur Hanger:
yes
Compatible Components:
Shimano, SRAM
Recommended Use:
all-mountain and trail riding
Manufacturer Warranty:
3 years on frame

sizing chart

Bike size by rider height

|

Geometry chart

Fuji Bicycles

 

Geometry Chart

 

Altamira LTD
 

Seat Tube

(c-t)

Effective Top Tube

(eTT)

Stack

(S)

Reach

(R)

Standover

(SO)

Head Tube

(HT)

Head Tube Angle

(HTo)

Seat Tube Angle

(STo)

Bottom Bracket Drop

(BBD)

Chainstay Length

(CS)

Wheelbase

44 44.0cm 51.5cm

51.7cm

36.3cm 72.1cm

12.0cm

72.0 deg 75.0 deg 6.9cm 40.5cm 97.1cm
47 47.0cm 53.0cm

52.8cm

37.0cm 74.1cm 13.0cm 72.5 deg 74.5 deg 6.9cm 40.5cm 97.7cm
50 50.0cm 54.5cm 54.0cm 37.0cm 76.0cm 14.0cm 73.0 deg 73.5 deg 6.9cm 40.5cm 97.6cm
53 53.0cm 56.0cm 56.0cm 37.9cm 78.3cm 16.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 98.6cm
55 55.0cm 57.5cm 58.0cm 38.9cm 80.1cm 18.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 100.1cm
58 58.0cm 59.0cm 60.1cm 39.7cm 82.1cm 20.0cm 74.0 deg 73.5 deg 6.9cm 40.5cm

101.0cm

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Here's what others have to say...

45

Smooth Efficiency

  • Familiarity:I've used it once or twice and have initial impressions

I recently rode this bike in Moab,Ut at Outerbike.The Firebird is a fun bike and I really enjoyed riding it over the gnarly sections of Deadmans trail.In fact, I was so impressed with the ride quality of the bike I opted for another loop because I couldn't believe the superb ride quality it was putting out for me.The 27.5 wheel size worked well in this environment. The pedaling and climbing efficiency of this bike was amazing. Pivot has done a great job with this bike and it is highly recommended.



Smooth Efficiency