Diamondback Line 27.5 Mountain Bike

Features

• 6061-T6 aluminum hardtail frame has progressive, low-slung geometry that’s made for trail-riding performance
• Custom-formed and butted tubing adds strength without adding weight
• SR Suntour XCR fork provides smooth front suspension with 120 mm travel and a lockout for big climbing days
• Powerful Shimano hydraulic disc brakes offer a smooth, responsive performance
• Shimano 1×9 single-ring drivetrain with chain guide delivers simple, hassle-free performance
• Frame is compatible with internally routed dropper posts (dropper post not included)
• Platform pedals included
• Specs and images are subject to change

Imported.

This bike comes with Coast to Coast Support, which includes:

• 1 year of free adjustments (see more below)
• In-store bike assembly
• Pickup in store or curbside
• Bike experts available at 170+ bike shops

REI Co-op Members get more:

• Free flat tire repairs (labor only; parts not included)
• 20% off shop services

More about our free adjustments: New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.View all Diamondback Hardtail Mountain Bikes

Technical Specs

Best Use

Mountain Bike Style

Frame

Bike Suspension

Fork

Fork Travel

Crankset

Bottom Bracket

Shifters

Rear Derailleur

Rear Cogs

Number of Gears

Brake Type

Brakes

Brake Levers

Rims

Front Hub

Rear Hub

Wheel Size

Tires

Tire Width

Handlebar Shape

Handlebar

Stem

Seat Post

Saddle

Pedals

Headset

Chain

Weight

Gender

Mountain Biking

Trail

6061-T6 aluminum

Front Suspension

SR Suntour XCR 120 mm travel fork, 32 mm stanchions, magnesium lowers, with preload adjust and hydraulic lock out

120 millimeters

Alloy arm 30T steel “narrow wide” single ring

Sealed cartridge

Shimano Acera M3000, 9-speed

Shimano Acera M3000 Shadow, 9-speed

Shimano HG200, 9-speed, 11-36T

9 gear(s)

Hydraulic Disc Brake

Shimano MT-200 hydraulic disc brakes with 180 mm front and 160 mm rear rotors

Shimano hydraulic

32-hole Diamondback DP25 double-wall

32-hole alloy with CNC disc mount, 100 mm

32-hole alloy with CNC disc mount, cassette, 135 mm

27.5 inches

Vee Rubber Crown Gem 27.5 x 2.35

2.35 inches

Riser Bar

Diamondback, 750 mm wide, 15 mm rise, 31.8 bar bore

Diamondback “Shortie,” 45 mm reach, 31.8 bar bore

Alloy micro adjust, 30.9 mm

Diamondback Sync’r saddle

Diamondback DB4L alloy platform

FSA IS-3/NO.11 Integrated Style

KMC Z9, 9-speed

Unavailable

Unisex

Size Chart

SMLXLHeight Range

Reach

Stack

Effective Top Tube

Seat Tube Center-Top

Standover Height

Head Tube Length

Head Tube Angle (degrees)

Seat Tube Angle (degrees)

Bottom Bracket Height

Wheelbase

Chainstay

Fork Offset

5’4”-5’7”	5’7”-5’10”	5’10”-6’1”	6’1”-6’4”
398	417	432	446
577	595	614	633
575	600	620	640
400	450	500	550
728	769	799	830
105	125	145	165
68	68	68	68
73	73	73	73
305	305	305	305
1087	1113	1135	1157
430	430	430	430
44	44	44	44

Sizing Notes

Measurements are stated in millimeters unless otherwise indicated.

How we measure bikes

bike diagram loading

Standover Height Standover Height is a measurement from the ground to the top of the top tube, measured at the midpoint of the top tube.

Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.

Stack Stack is the vertical distance from the center of the cranks to the center of the head tube, measured to the top of the head tube.

Effective Top Tube Effective top tube is the distance from the center of the head tube to the center of the seat tube/seat post, measured parallel to the ground.

Seat Tube Center to Top Seat Tube length is the measurement of the seat tube, from the center of the cranks to the top of the seat tube.

Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.

Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)

Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).

Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.

Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.

Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.

Fork Offset Fork Offset, or rake, is the distance from the front axle to a line drawn parallel to the center of the head tube or steering axis.