Diamondback  Overdrive Comp 27.5" Bike - 2017

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The Diamondback Overdrive Comp is a classic hardtail bike with a component group to match its performance, made for riders who relish speed and want to knock some time off their personal bests.

Features

  • Aluminum frame features forged dropouts and butted and formed tubes in a neutral geometry, making it lightweight and responsive on trail
  • 27.5 in. wheels are easier to control in tighter spots without sacrificing too much traction and speed
  • Smooth RockShox 30 Silver 100mm fork with turnkey lockout, rebound and compression adjustment
  • Shimano BR-M355 hydraulic disc brakes for well-regulated speed control
  • SRAM NX 11-speed drivetrain
  • Kenda Honey Badger tires, 27.5x2.2"
  • NOTE: Specs and images are subject to change based on component availability
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:
  • 20% off shop services
  • Free tubes with purchase of flat tire repair (Co-op Cycles brand tubes only; tube must be installed at time of purchase)
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 the Diamondback Overdrive Product LineView all Diamondback

Technical Specs

Best Use

Mountain Biking

Mountain Bike Style

All-mountain

Frame

Butted 6061-T6 Aluminum

Bike Suspension

Front Suspension

Fork

RockShox 30 Silver

Fork Travel

100 millimeters

Crankset

SRAM NX 1x, with X-Sync 30T Chain Ring

Bottom Bracket

SRAM GXP

Shifters

SRAM NX 11 Speed X-Actuation Trigger

Front Derailleur

Not applicable

Rear Derailleur

SRAM NX X-Horizon, 11 Speed

Rear Cogs

SRAM PG1130, 11 Speed, 11-42T

Number of Gears

11

Brake Type

Hydraulic Disc Brake

Brakes

Shimano BR-M355 Hydraulic Disc, w/ 180mm Front /160mm Rear Center Lock Rotors

Brake Levers

Shimano BR-M355 Hydraulic Lever w/ Reach Adjust

Rims

Diamondback Blanchard 25, Tubeless Compatible

Front Hub

32h SL-7, 15MM Thru-Axle, Alloy w/ CNC Disc Mount

Rear Hub

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

Wheel Size

27.5 inches

Tires

Kenda Honey Badger 27.5x2.2

Tire Width

2.2 inches

Handlebar Shape

Riser Bar

Handlebar

Diamondback "Pro Bar", 740mm Wide, 15mm Rise, 31.8 Bar Bore

Stem

DB 3D Forged, 7 Rise, 31.8 Bar Bore

Seat Post

DB Alloy Micro Adjust 30.9mm

Saddle

DB Race M-series Saddle

Pedals

DB4L Alloy Platform

Headset

FSA NO.42, Sealed Cartridge for Tapered Headtube

Chain

SRAM PC-1130, 11 Speed, Power Link

Weight

Unavailable

Bike Weight

Bike weight is based on median size, as sold, or the average of two median sizes.

Gender

Unisex

Size Chart

Diamondback Bikes (108635)
SMLXL
Height Range5'4" - 5'7"5'7" - 5'10"5'10" - 6'1"6'1" - 6'4"
Reach398418433447
Stack575593611630
Effective Top Tube574600620640
Seat Tube Center-Top410460510560
Standover Height758796831867
Head Tube Length105125145165
Head Tube Angle (degrees)68686868
Seat Tube Angle (degrees)73737373
Bottom Bracket Height308308308308
Wheelbase1082111011321154
Chainstay425425425425
Fork Offset44444444

Sizing Notes

Bike measurements are stated in millimeters.

How we measure bikes

  1. 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.
  2. Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
  3. 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.
  4. 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.
  5. 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.
  6. Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
  7. Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
  8. Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
  9. Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
  10. Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
  11. Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
  12. 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.

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