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  • Even for a hardtail, Rely Trail climbs above expectations, finding more grip on loose and slippery surfaces than you'll believe, and it locks into a groove and doesn't let go
  • 6061-T6 aluminum frame with 148x12 Boost dropouts
  • 1x10 drivetrain offers a wide range of gears without necessitating a front derailleur, making for a smooth and quiet ascent
  • When you've reached the top the fun really begins as 120mm of fork travel combines with 3.5 in. wide tires for amazing float and traction
  • SR Suntour 120mm 27.5+ fork with rebound and lockout control soaks up the bumps
  • SRAM NX 1x crankset, with X-Sync; 30t
  • Tektro Auriga hydraulic disc brakes deliver reliable stopping power
  • Diamondback Blanchard 38 rims, tubeless-ready, 32h
  • 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.


When you purchase your Diamondback bike on, have it shipped to any REI store where it will be ready for pick up fully assembled (and you'll avoid the home-delivery oversize shipping charge)!

View all Diamondback Hardtail Mountain Bikes

REI membership


Best Use Mountain Biking
Mountain Bike Style Trail
Frame 6061 aluminum
Bike Suspension Front Suspension
Fork SR Suntour Radion 27.5" Plus, 15mm thru-axle; air spring
Fork Travel 120 millimeters
Crankset SRAM NX 1x, with X-Sync 30t chainring
Bottom Bracket SRAM GXP
Shifters Shimano Deore M610, 10-speed
Rear Derailleur Shimano Deore M615 Shadow Plus, 10-speed
Rear Cogs Shimano Deore M610, 10-speed
Number of Gears 10
Brake Type Hydraulic Disc Brake
Brakes Tektro Auriga hydraulic disc, with 180mm front / 160mm rear rotors
Brake Levers Tektro Auriga hydraulic disc brake levers
Rims Diamondback Blanchard 38, tubeless-compatible, 32h
Front Hub 32h Alloy, Boost 110x15mm thru-axle, sealed cartridge bearing; CNC disc mount
Rear Hub 32h Alloy, Boost 148x12mm thru-axle, 2 sealed cartridge bearing, cassette
Wheel Size 27.5+ inches
Tires Chaoyang Big Daddy 27.5x3.5"
Tire Width 3.5 inches
Handlebar Shape Riser Bar
Handlebar DB35 Alloy, 760mm wide, 15mm rise, 35mm bar bore
Stem DB35 Alloy, 60mm, 35mm bar bore
Seat Post DB Alloy micro-adjust 30.9mm
Saddle Devine Edition MTB
Pedals DB4L alloy with molded traction pins
Headset FSA NO.42, Sealed Cartridge for Tapered Head tube
Chain KMC X10, 10-speed
Weight 29 lbs. 13 oz.
Bike Weight Bike weight is based on median size, as sold, or the average of two median sizes.
Gender Women's

Size chart

Sizing notes

Bike measurements are stated in millimeters.

Graphic of a bike and its measurements

How we measure bikes

Understanding bike geometry helps you get a perfect fit.

1. Reach

2. Stack

3. Effective Top Tube

4. Seat Tube Center to Top

5. Standover Height

6. Head Tube Length

7. Head Tube Angle

8. Seat Tube Angle

9. Bottom Bracket Height

10. Wheelbase

11. Chainstay Length

12. Fork Offset

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