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Details

  • 140mm-travel Rock Shock Sektor Gold fork includes a tapered steerer, magnesium lowers and a 15mm thru axle for precision; lockout and rebound offer easy adjustment
  • RaceFace Respond single-ringed crankset with MRP chain guide is paired with 10-speed, 11-36t cassette for good all-around gearing; ISCG 05 tabs make an upgrade easy
  • SRAM X5 shifter guides the SRAM X5 rear derailleur quickly and precisely through the 10 gears
  • 6061-T6 weapons-grade aluminum frame boasts an array of formed and butted-and-formed tubes along with a tapered head tube to deliver a strong, stiff and responsive ride
  • Slack 66.5° head tube angle offers stable, confidence-inspiring handling on aggressive trails; 16.77 in. long chainstays make it easier to get the front up over obstacles
  • Avid Elixir 5 hydraulic disc brakes deliver responsive braking thanks to a 180mm rotor up front and 160mm rotor in the back
  • Diamondback AM290 rims spin smoothly around sealed cartridge bearing hubs and are wrapped with Kenda Nevegal 29 x 2.2 (front) and Slant 29 x 2 (rear) tires
  • Specs on the Diamondback Mason 29er hardtail mountain bike are subject to change

Imported.

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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Specs

Best Use Mountain Biking
Frame 6061 aluminum
Bike Suspension Front Suspension
Fork Rock Shox Sektor Gold, 140mm travel with 15mm thru-axle
Crankset Raceface Respond, 32t
Bottom Bracket Raceface
Shifters SRAM X5
Rear Derailleur SRAM X5
Rear Cogs SRAM PG-1030, 11-36, 10-speed
Number of Gears 10 gear(s)
Brakes Avid Elixir 1 hydraulic disc
Brake Levers Avid Elixir 1
Rims Diamondback AM290
Front Hub Alloy, 32h
Rear Hub Alloy, 32h
Wheel Size 29 inches
Tires (front) Kenda Nevegal 29 x 2.2 / (rear) Slant 6 29 x 2.0
Handlebar Shape Riser Bar
Handlebar Raceface Ride
Stem DB alloy
Seat Post Crank Brothers Kronolog Dropper
Saddle DB Mason
Pedals DB alloy platform
Headset FSA No. 57
Chain SRAM PC-1031
Weight Unavailable
Bike Weight Bike weight is based on median size, as sold, or the average of two median sizes.
Gender Unisex
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