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Diamondback
Mason Pro XT Complete Mountain Bike - 2016

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You thought you didn't want a hardtail.

Deciding which mountain bike is right for you can easily become a process more intense than buying a car if you let it get out of hand, which it's easy to do. With so many options, narrowing down what's important to you requires some serious self-discipline. Fortunately, many manufacturers are blurring the lines between traditional off-road disciplines more than ever, creating bikes that don't fit neatly into one category but instead spill over into two or three. Diamondback's Mason Pro XT Complete Mountain Bike exemplifies this shift. It's the top build in the Mason line and it blends the capability of a squishy XC bike with the snappiness of a hardtail by combining 27.5+ wheels and a responsive rear triangle to give you more versatility than you ever expected from a hardtail.


The Mason Pro manages to occupy an affordable price point — generally a lonely place in the world of mountain bikes — without being so budget-oriented that you question quality. Diamondback achieves this with its use of dependable 6061-T6 aluminum, a treated version of the metal with an ideal mix of bombproof durability and low weight, and it shapes the tubes to accommodate Boost spacing. Front and rear Boost spacing stiffens the entire frame, as the wider hubs necessitate a more acute, and consequently stronger, spoke bracing angle than traditional spacing — especially when paired with much beefier Boost hubs. This allover increase in rigidity makes a perfect platform for 17-inch chainstays to lend the frame all-mountain stability, while a thoroughly XC-appropriate 68-degree head tube angle lends the frame nimble dexterity as you aim to maintain quick cadence on long climbs.


Underneath, 27.5+ wheels wrapped in Schwalbe's 2.9in Nobby Nic tires hang on with confident grip when you're rallying over loose, shifty sections of trail, helping you navigate unpredictable terrain with an added dose of plushness that goes a long way on a hardtail. As the top member of the Mason family, the Mason Pro receives a build kit that boasts a Shimano XT 2x11 drivetrain, promising quick, mechanically-sound shifts whether you're mashing the pedals to accelerate out of a corner or downshifting for a climb. A KS Supernatural dropper post deserves mention as well, giving you the freedom to drop in while lowering your seatpost with the push of a button rather than having to stop on the side of the trail to do it manually. Finally, for the occasions you do want to stop, you'll have Shimano Deore hydraulic disc brakes with 180mm rotors on your side, which refuse to be intimidated by slick, muddy trails.


Frame Material
6061-T6 aluminum
Suspension
hardtail
Fork
Fox 34 Float Performance Elite FIT4
Front Travel
130 mm
Headset
1-1/8 - 1-1/2 in FSA No. 57 tapered
Shifters
Shimano XT M8000 11-speed
Front Derailleur
Shimano XT M8000
Rear Derailleur
Shimano XT M8000 Shadow Plus
ISCG Tabs
yes
Crankset
36 / 22 t Raceface Aeffect SL
Bottom Bracket
Raceface outboard
Cassette
11 - 40 t Shimano XT M8000
Chain
Shimano HG700
Brakeset
Shimano Deore M615
Brake Type
hydraulic disc
Rotors
180 / 180 mm
Handlebar
Raceface Aeffect
Handlebar Rise
10 mm
Handlebar Width
760 mm
Grips
DB4L lock-on 135mm Kraton
Stem
Raceface Aeffect
Stem Length
60 mm
Saddle
DB Race M-series
Seatpost
KS LEV DX dropper
Seatpost Diameter
30.9 mm
Wheelset
DB OffPiste50
Hubs
Alloy Disc
Front Axle
Boost 15 x 110mm thru-axle
Rear Axle
Boost 12 x 148mm thru-axle
Tires
Schwalbe Nobby Nic
Tire Size
27.5 x 2.9 in
Pedals
not included
Extras
bottle mounts
Recommended Use
cross country
Manufacturer Warranty
lifetime on frame

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