Mission 1

The Mission 1 27.5 is a bike designed to unlock the secret world of All Mountain ripping. Do those steep, rocky, and root strewn descents have you second guessing your trail choice? No more. The Mission 1 27.5’s KnuckleBox suspension design drops the center of gravity low in the frame for better cornering and tracking and delivers 160mm of trail taming travel to tackle all of the big hits. 27.5” wheels give you better grip and roll over for a surefooted feel. Of course you’re not just riding down, you also have to go up, and for that the FOX Float CTD air rear shock provides you a solid pedaling platform for uphill efficiency. This, coupled with a Shimano drivetrain and Race Face crankset with single ring, makes for a simple yet effective set up. The result: you get to the top fresher, ready to send it down the other side for a whole lot more fun. Welcome to a new world.


  • All Mountain 160mm travel 6061-T6 weapons grade aluminum frame with KnuckleBox suspension is super stiff and ultra durable
  • Single-sided hardware on three main pivot points for easy bearing serviceability
  • FOX 32 Float CTD air front and CTD "LV" rear suspension will smooth out any trail
  • Shimano SLX Shadow rear derailleur delivers silent, accurate shifting
  • Race Face Ride 1x Crankset is practical and efficient

Diamondback Bicycles - Mission Technology

Bike Specs

Sizes 15.5" Small  17" Medium  19" Large  21" XLarge 
Frame Mission All Mountain 27.5, 160mm 6061-T6 Weapons Grade Aluminum w/Hydroformed Top Tube, Butted / Formed Down Tube / Seatstays, Under Arch Seatstay bridge, Tapered Head Tube Knuckle Box Technology, ISCG 05, 142x12mm E-Thru Axle Drop out
Fork Fox 32 Float CTD air, 150mm travel, open cartridge, w/ ext. rebound, butted Alloy 1.5 Tapered steerer, 32mm Easton aluminum stanchions, magnesium lowers, w/QR15 Thru Axle
Rear Shock Fox Float, CTD, "LV" eyelet, 8.5x2.5" Air, DB Mission Spec, w/rebound adj, w/Climb, Trail, Descend, lever
Cranks Raceface Ride 30T NarrowWide Single Ring
Bottom Bracket Raceface Outboard Bearing
F. Derailleur
R. Derailleur Shimano SLX Shadow Plus M675
Shifter Shimano Deore M610 10sp trigger (rear only)
Brake Levers Shimano M445 w/ reach adj.
Brakes Shimano M447 Hydraulic Disc Rotors - 180mm Front/180mm Rear
Cassette Shimano HG50 10sp Cassette (11-36t)
Rims DB AM280 Doublewall Disc, 32h
Tires Kenda Nevegal 27.5x2.35, w/Stick-E compound, Folding Bead
Pedals DB Sound Alloy w/ molded traction pins
Handlebar DB Laser Bar 740mm width, 30mm rise, 31.8mm
Stem DB Fifty, 50mm 31.8mm
Seatpost DB Laser Post 30.9mm
Seat DB Race M-series saddle
Headset FSA No57 Taper 1.5 / 1 1/8"standard cups, Sealed Cartridge
Colors Blue
Chain KMC X10
Hubset (F) 32h Alloy Disc w/15mm Thru Axle (R) 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 / Mission owner's manual cover, Chainstay Protector, H20 bottle mounts
Note Specifications Subject to Change


Size 15.5" Small 17" Medium 19" Large 21" XLarge
Seat Tube Length ** 15.0" 17.0" 19.0" 21.0"
Standover Height 30.0" 30.5" 31.5" 32.0"
Top Tube Length * 22.0" 23.0" 24.0" 25.0"
Stack 589.0mm 589.0mm 604.0mm 622.0mm
Reach 380.0mm 404.0mm 416.0mm 430.0mm
Head Tube Length 105.0mm 105.0mm 120.0mm 140.0mm
Head Angle 66.5° 66.5° 66.5° 66.5°
Seat Angle 73.0° 73.0° 73.0° 73.0°
Wheel Base 1134.0mm 1159.0mm 1176.0mm 1198.0mm
Chain Stay Length 451.0" 451.0" 451.0" 451.0"
Fork Offset 44.0mm 44.0mm 44.0mm 44.0mm
BB Height 342.0" 342.0" 342.0" 342.0"
BB Drop 2.0mm 2.0mm 2.0mm 2.0mm
Stem Length 60.0mm 60.0mm 60.0mm 60.0mm
Handlebar Width 740.0mm 740.0mm 740.0mm 740.0mm
Crank Length 170.0mm 175.0mm 175.0mm 175.0mm
Seat Post Length 350.0mm 350.0mm 350.0mm 350.0mm
* Measured Horizontally ** Measured from Center

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