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Pivot Firebird/Shimano XT/SLX Complete Bike $0.00
With 167mm (6.6") of rear wheel travel, the Pivot Firebird/Shimano XT/SLX Complete Bike is a machine for all occasions. It's a surprisingly capable climber, and when the trail tips back down towards the valley, it really comes alive. The dw-link rear end is what makes it all possible by combining anti-squat geometry with a custom valved rear shock. This combination allows the suspension to do what it's supposed to do -- let the wheel follow the ground. This gives you more control and traction in every trail situation.
As the greatest percentage of the vehicle's (rider plus bike) mass, we exact profound effects on the suspension as we pedal or shift our weight around on the bike through a variety of trail conditions. It's just simple physics -- when something accelerates, its mass is transferred rearward. The dw-link rear suspension actively works to counteract this effect. This is why Pivot is able to get such a lightly damped tune on the 8.5 x 2.5" Kashima Coated RP23 rear shock from Fox. With the dw-link controlling unwanted suspension squat, the lightly damped shock can respond to the trail surface with ultra-sensitivity. The anti-squat is the real reason why it pedals so well without unwanted motion in the rearend, but the light damping it affords gives the wheels the freedom to track the surface of the trail. Low- or high-speed bumps are no problem for the Firebird.
Pivot builds the Firebird frame out of hydroformed 6000 series aluminum to provide a stiff, stable platform for the suspension to do its work. They also make use of 3D hollow forged aluminum for select pieces of the frame. Both processes align the grain structure and strengthen the material for its intended purpose. This makes the Firebird frame strong enough to endure serious downhills, yet it's light enough to build an all-out trail shredding weapon capable of assaults on your local marathon XC races. The 67.1° head angle tailors this versatility of the Firebird. Stable without being slow is how we'd describe it.
A few other details stand out on the Firebird. It uses a standard 73mm English-threaded bottom bracket shell. This gives you options for chainguide mounting, even though it has ISCG 05 tabs as well. Pivot designed it with a floating front derailleur to maximize function throughout the travel range. This makes shifting more precise at all times, since the "sweet spot" in the derailleur cage will follow the chain as the suspension cycles up and down. And Pivot relies on sealed cartridge bearings to make it all silky smooth. The forged and 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 build kit consists of drivetrainparts from Shimano's SLX and XT groups. SLX gets the nod for the shifters and front derailleur, and an XT 10-speed rear derailleur handles shifting duties out back. Pivot spec's an FSA Gap 24/36t Crankset and an MRP LRP chainguide. You'll get rolling on DT Swiss 350 hubs and 540 rims, along with Kenda Nevegal 2.35" tires. Magura MT2 brakes get you slowed down and stopped. FSA supplies the 710mm Gravity Light OS handlebar, Gap stem, and Gravity Light seatpost. Phoenix Lock-on Grips and a WTB Vigo Race Saddle top it all off. A Fox 36 Vanilla R open bath 170mm 20mm thru-axle fork handles the front suspension and offers a rebound damping adjustment.
The Pivot Firebird/Shimano XT/SLX Complete Bike is available in anodized Black or White powdercoat, and it comes in Small, Medium, and Large.