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  • Diamondback Axis Comp 27.5 mountain bike is quicker and lighter than 29ers, but offers the same benefits of large-diameter wheels—more speed and better traction
  • Compared to 26 in. wheels, larger-diameter wheels roll over obstacles more easily so you won't stall going uphill over roots and loose soil
  • RockShox XC 30 suspension fork supplies 100mm of travel for smoothing out rough trails, and its turnkey lockout offers increased performance on climbs
  • SRAM X5 drivetrain features intuitive trigger shifters and responsive derailleurs to offer dependable shifts throughout the 30 gear combinations
  • Butted 6061-T6 aluminum frame offers a lightweight and agile feel in the saddle with high durability to take the punishment that rough trails can dish out
  • Diamonback SL-7 rims are wrapped with Schwalbe Rapid Rob tires for good all-around traction on the trail
  • Platform pedals don't require bike-specific shoes, making it easy to go from off-road to around town
  • Specs on the Diamondback Axis Comp 27.5 mountain bike 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
Frame 6061 aluminum
Bike Suspension Front Suspension
Fork Rock Shox XC 30, 100mm travel with lockout
Crankset SRAM S800, 44/32/22
Bottom Bracket Sealed cartridge
Shifters SRAM X5
Front Derailleur SRAM X5
Rear Derailleur SRAM X5
Rear Cogs SRAM PG-1030, 11-36, 10-speed
Number of Gears 30 gear(s)
Brakes Avid Elixir 1 Hydraulic Disc
Brake Levers Avid Elixir 1
Rims Diamondback SL-7
Front Hub SL-7, 32h
Rear Hub SL-7, 32h
Wheel Size 27.5 inches
Tires Schwalbe Rapid Rob, 27.5 x 2.25
Handlebar Shape Flat Bar
Handlebar DB alloy
Stem DB alloy
Seat Post DB micro adjust
Saddle DB Race
Pedals Wellgo Alloy platform
Headset FSA No.42
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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