2017 Diamondback

Overdrive ST 27.5

A 27.5″ aluminum frame hardtail crosscountry bike with modest components and mechanical disc brakes.
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FrameAluminum
SuspensionHardtail, 80mm
ForkSuntour XCT
Wheels27.5″ Aluminum
Drivetrain3 × 8
GroupsetAcera, Tourney
BrakesMechanical Disc
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Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Overdrive ST 27.5
Other Crosscountry bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

31 mph

Overdrive ST 27.5

27 mph

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Highest gear

(descending)

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

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Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

Overdrive 27" Butted 6061-T6 Aluminum w/ Formed Top / Down Tube, machined headtube, forged drop outs w/replaceable hanger, disc only

Fork

SR Suntour XCT 27.5 coil spring 80 mm travel, Preload Adjust

Travel80mm

Spring TypeCoil

Bottom Bracket

Square Taper - 5pc

Headset

Integrated FSA Drop-in ACB upper, Zero Stack lower internal cup and cartridge bearing, 1 1/8"

Stem

DB AL6061 Ahead, 31.8mm, 7°

Handlebar

DB Flat Bar, 720mm wide, Flat Bar,31.8mm

Saddle

DB Race s M-series Saddle

Seatpost

DB Laser Micro Adjust 30.9mm

TypeRigid

Pedals

Alloy Forged

Grips

DB4L 135mm Kraton

Groupset
Rear Derailleur

Shimano Acera M360, 8 Speed

Front Derailleur

Shimano Tourney, top pull, 31.8

Crank

Suntour XCT, 42/32/22T

Shifters

Shimano Altus EF-51 3x8spd

Cassette

Shimano HG-31, 8 Speed, Cassette, 11-32T

Chain

KMC Z82

Brakes

Tektro Aires Mechanical Disc w/ 160mm Front / 160mm Rear Rotors

TypeMechanical Disc

Brake Levers

Shimano Altus EF-51

Wheels
Rims

DB SL7 27.5" 32h, Doublewall

Spokes

14g Stainless

Front Hub

32h SL-7 Alloy w/ CNC Disc Mount

Rear Hub

32h SL-7 Alloy w/ CNC Disc Mount, Cassette

Tires

Chaoyang Hornet 27.5x2.1

Rider Notes
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Last updated January 17
Not listed for 2,622 days