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  • Hand-built 6061-T6 aluminum hardtail frame features formed and butted tubing for stiffness; low-slung geometry is ideal for all-mountain riding
  • Fox 34 Float Performance Elite FIT4 cartridge fork delivers 130mm travel with 3 position levers and external rebound
  • Shimano XT 2x11 drivetrain offers twice the gearing options of the 2015 Mason Pro+
  • 27.5+ wheels with Boost hub spacing provide stiffness, good control and add unbelievable amounts of traction
  • Shimano Deore M615 hydraulic disc brakes offer powerful, smooth deceleration
  • DB OffPiste50 27.5 in. wheels roll easily and are wrapped in knobby Schwalbe Nobby Nic tires for solid traction on loose or wet trails
  • Specs are subject to change


All bicycles sold at REI include a free warranty tune-up. New bikes go through a normal break-in period, after which readjustment is important for longevity and performance. Bring your new bike in to your local REI for its free tune-up within 20 hours of use or 6 months from purchase, whichever comes first. Contact your nearest REI bike shop to schedule this important service.

View all Diamondback Hardtail Mountain Bikes

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Best Use Mountain Biking
Mountain Bike Style Trail
Frame 6061 aluminum
Bike Suspension Front Suspension
Fork Fox 34 Float Performance, 130mm travel
Fork Travel 130 millimeters
Crankset Raceface Aeffect SL, 36/22
Bottom Bracket Raceface outboard bearing
Shifters Shimano XT
Front Derailleur Shimano XT
Rear Derailleur Shimano XT
Rear Cogs Shimano XT, 11-40, 11-speed
Number of Gears 22 gear(s)
Brake Type Hydraulic Disc Brake
Brakes Shimano Deore hydraulic disc
Brake Levers Shimano Deore
Rims DB OffPiste50
Front Hub Alloy disc, 32h
Rear Hub Alloy disc Boost 148, 32h
Wheel Size 27.5+ inches
Tires Schwalbe Nobby Nic, 27.5 x 2.9
Tire Width 2.9 inches
Handlebar Shape Riser Bar
Handlebar Raceface Aeffect
Stem Raceface Aeffect
Seat Post KS LEV DX dropper
Saddle DB Race M-series
Pedals DB alloy platform
Headset FSA No57
Chain Shimano HG700
Weight 30 lbs. 2 oz.
Bike Weight Bike weight is based on median size, as sold, or the average of two median sizes.
Gender Unisex
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