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Diamondback Mason FS 29" Bike 2014

Item #: BI230P00
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Diamondback Mason FS 29" Bike 2014

The Diamondback Mason FS represents a pinnacle in technology and innovation. Utilizing their Knuckle Box suspension, Diamondback designed a 140mm travel all-mountain slayer that climbs with the aggression of a mountain goat and descends with the prowess of the mountain lion. Featuring a tapered head tube, a 142×12mm thru axle, and optimally placed pivots, the frame was designed around low leverage rate and a low center of gravity. The tight linkage cradles the rear shock and the tight aluminum hardware with Force-Rated Enduro Max Bearings withstands higher loads and better handles oscillating motion. The rear seatstay bridge has been beefed up to handle better lateral forces for the stiffest rear end available. Wrap all of these goodies into a frame with a 66.5 degree headtube angle, a low BB and short chainstays and you've got yourself one killer all-mountain destroyer.

Loading up the front end is a Fox 34 Float 29 CTD air fork, 140mm / 110mm travel, open cartridge, with external rebound, butted alloy 1.5 tapered steerer, 34mm Easton aluminum stanchions, magnesium lowers, w/QR15 thru axle. Paired with a Fox Float rear shock with Boost Valve and CTD settings (Climb, Trail, Descend), The Mason FS 29" has all your suspension needs covered.

32h AM290HD double wall disc specific rims are laced to 32h sealed cartridge bearing hubs and thru axles for a stout yet light weight wheelset. Some benefits of a 29” wheel include:
  • Angle of Attack – Larger wheels decrease your angle of attack by allowing you to roll over obstacles easier and faster. Bigger wheel = smaller obstacle.
  • Momentum – A larger wheel enables one to carry momentum easier though obstacles.
  • Surface Contact – 29”wheels are less prone to sinking in soft material such as sand and mud due to the larger contact patch causing lower ground pressure. The longer contact patch increases cornering and straight line traction.
  • Stability – The relative position of the bottom bracket/cranks to the axles in the wheels also means that your relative center of gravity is lower. This results in a feeling of riding “in” the bike rather than on top of it.
  • Tire Clearance – with more tire choices than any platform, the 29”wheel easily accommodates off road as well as commuting tires.
  • Taller Riders – 29" bikes tend to offer taller riders a more “natural” frame geometry.
The drivetrain is ready to roll with a RACEFACE Respond 24/36 2-ring 10 spd with outboard bearing bottom bracket. Combine this with a SRAM X-9 Type 2 10spd rear derailleur with X-7 trigger shifter, and a SRAM PG-1030 10spd Cassette (11-36t) and you have a simplistic approach that offers a variety options to get you up and down the trail with ease. AVID Elixir 5 Hydraulic Disc brakes with 200mm front & 180mm rear HS-1 rotors offer optimized stopping power when and where you see fit. The cockpit of the Mason FS 29" is decked out with an Easton EA50 stem and DB PROBAR handlebars, an Easton EA50 Double Bolt seatpost and the WTB Silverado Race SL saddle.


BIKE SPECS
Sizes
15.5" SM, 17" MD, 19" LG, 21" XL
Frame
Mason FS 29" All Mountain 140mm travel full suspension frame, 6061-T6 Weapons Grade Aluminum w /formed top tube, Butted / formed down tube / seatstays, Tapered head tube, ISCG, 142x12mm Maxle drop out
Fork
Fox 34 Float CTD air, 140mm travel, open cartridge, w/ ext. rebound, butted alloy 1.5 tapered steerer, 34mm Easton aluminum stanchions, magnesium lowers, w/QR15 thru axle
Rear Shock
Fox Float, CTD, boost valve, "LV" eyelet, 7.875x2.250" Air, DB Mission Spec, w /rebound adj, w/ Climb, Trail, Descend lever
Cranks
RACEFACE Respond 10 spd w/outboard bearing BB w/All Mountian guard, 24/36/AM
Bottom Bracket
Raceface BB
F. Derailleur
Shimano Deore dual pull, top swing 34.9
R. Derailleur
SRAM X-9, Type 2 10spd
Shifter
SRAM X-7 10spd trigger
Brake Levers
AVID Elixir 5 Hydraulic Levers with reach adj
Brakes
AVID Elixir 5 Hydraulic Disc w/200mm front, 180mm rear HS-1 rotors
Cassette
SRAM PG-1030 10spd Cassette (11-36t)
Rims
32h AM290HD Doublewall Disc
Tires
KENDA Nevegal 29x2.35, w/STICK-E rubber compound, Folding
Pedals
DB Sound Alloy w/ molded traction pins
Handlebar
DB PROBAR 25mm Rise 740mm width 31.8mm
Stem
Easton EA50 31.8mm
Seatpost
Easton EA50 double bolt clamp 30.9mm
Seat
WTB Silverado Race SL
Headset
FSA No57 Taper 1.5 / 1 1/8"standard cups, Sealed Cartridge
Chain
SRAM PC-1031 Power Link - Gold
Hubset
Front: 32h 15mm thru axle, Alloy, loose ball bearing Disc
Rear: 32h 142x12 sealed cartridge bearing, 12mm thru axle, Cassette w/ CNC Disc mount, w/ Shimano E-Thru QR Axle
Spokes
14g Stainless Steel
Grips
DB4L "Lock on" 135mm Kraton
Extras
Owner’s manual, Chainstay Protector, H20 bottle mounts
Note: Specifications subject to change at any time


GEOMETRY
Size
15.5" Small
17" Medium
19" Large
21" X Large
Seat Tube Length
15"
17"
19"
21"
Standover Height
30.5"
31.0"
31.5"
32.7"
Top Tube Length
22.5"
23.7"
24.4"
25.3"
Head Tube Length
110mm
110mm
110mm
110mm
Head Angle
66.5º
66.5º 66.5º 66.5º
Seat Angle
73º 73º 73º 73º
Wheel Base
1089mm
1108mm
1127mm
1145mm
Chain Stay Length
433mm
433mm
433mm
433mm
Fork Offset
40mm
40mm
40mm
40mm
BB Height
330mm
330mm
330mm
330mm
Stem Length
45mm
45mm
60mm
60mm
Handlebar Width
740mm
740mm
740mm
740mm
Crank Length
170mm
175mm
175mm
175mm
Seat Post Length
350mm
350mm
350mm
350mm

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Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.