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Diamondback Bicycles Overdrive Hardtail Mountain Bike with 27.5" Wheels, 18"/Medium, Red

4.6 4.6 out of 5 stars 201 ratings

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Size Chart
US Aluminum Frame, Mountain bike
Brand SizeRider Height (in)Frame Size (in)
S64 - 6715 - 16
M67 - 7017 - 18
L70 - 7419 - 20
XL73 - 7821 - 22

About this item

  • Aluminum alloy hard tail frame is tried and true
  • Custom formed and butted tubing for great balance of strength and weight
  • Suspension fork provides added control and comfort on the trail
  • Shimano drivetrain is a staple of reliability
  • Mechanical disc brakes offer great stopping power

From the manufacturer


  • Overdrive 27.5” butted 6061-T6 aluminum frame
  • SR Suntour XCT 27 coil spring fork with 80mm travel
  • Tektro Aries mechanical disc brakes
  • Shimano drivetrain

Precise and efficient hardtail

Can you still get a quality mountain bike without emptying your pockets? The Overdrive is an aluminum hardtail that answers a resounding 'yes!' Our classic returns this year with 27.5” wheels, 24 speeds, a plush four-inch Suntour suspension fork, and powerful disc brakes. Big knobby tires grip every root and rock, keeping you confident and in control as you explore the trail. Whether you're a diehard hardtail aficionado or looking for a solid starter mountain bike, the Overdrive doesn't disappoint.

Overdrive 27.5 Features

Suspension fork

SR Suntour XCT 27 Coil Spring fork with 80mm travel. Soaks up bumpy terrain for more control and less fatigue.

Drivetrain

Shimano 3x8 speed drivetrain with Suntour XCT cranks. A wide range of gears keeps you cranking up the hills and hammering down the other side.

Disc Brakes

Tektro Aries mechanical disc brakes w/ 160mm rotors. Reliable stopping power for confident handling in any terrain.

Ready Ride

Hand built and shipped ride ready in a few easy steps. Diamondback ReadyRide bikes eliminate the usual hassle of tedious at-home bike assembly, an often-ignored process that can take hours. Our program allows you to spend less time assembling your new bike and more time riding it. ReadyRide bikes are hand-built and shipped straight to you. All you need to do is put on the front wheel, seat, and pedals. Yes, the brakes are dialed in and the gears are adjusted: just pump up the tires and go.

Warranty / Customer Service

Diamondback stands behind the quality and craftsmanship of all our products. When problems do arise our primary goal is to get you safely back on your bike. Please visit our website with any questions on the use and maintenance of your Diamondback. Our dedicated customer experience team is eager to help with online live chat and an extensive video library. Give us a shout, we got your back!

Product Description

You can still get a quality mountain bike without emptying your pockets! The Overdrive is an aluminum hardtail with 27.5" or 29" wheels, 24 speeds, a plush Suntour suspension fork, and powerful disc brakes. Big knobby tires grip every root and rock, keeping you confident and in control as you explore the trail. If you're looking for a solid starter mountain bike, the Overdrive doesn't disappoint.

Product information

Technical Details

Additional Information

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Diamondback Bicycles Overdrive Hardtail Mountain Bike with 27.5" Wheels, 18"/Medium, Red


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Customer reviews

4.6 out of 5 stars
4.6 out of 5
201 global ratings

Customers say

Customers like the quality, ease of assembly, value, and smoothness of the bicycle. For example, they mention it's a good value, runs smooth out of the box, and looks sharp. Customers are also impresseded with the performance.

AI-generated from the text of customer reviews

26 customers mention23 positive3 negative

Customers like the quality of the bicycle. They say it's a well-made, high-quality entry-level bike with decent components for the intended use. Some customers also mention that the mechanical discs are nice and work as expected. Overall, customers are satisfied with their purchase and recommend it to others.

"...Plus, the bike is good-looking, too. It is a very nice bike, especially for the price." Read more

"...The bike is awesome. Great quality! You feel invincible riding it...." Read more

"...other than that , the bike is a solid machine built for all sorts of terrain" Read more

"...getting someone who has to put together, but they provided some good quality tools for the job...." Read more

15 customers mention15 positive0 negative

Customers are satisfied with the appearance of the bicycle. They mention it's a good looking bike, with a beautiful color and clean finish.

"...Plus, the bike is good-looking, too. It is a very nice bike, especially for the price." Read more

"...The bike is awesome. Great quality! You feel invincible riding it...." Read more

"...but my serious MB days are long gone! The Red is really nice, and the frame style is pretty cool as well, with decent components for the intended..." Read more

"...Bike came pre-assembled with a few exceptions...Beautiful color and clean finish...I like looking at it...Seriously...Would highly recommend as an..." Read more

15 customers mention15 positive0 negative

Customers find the bicycle easy to assemble. They mention the instructions are clear, and the tools provided are sufficient for the job.

"...Instructions for assembly were clear, and included tools were sufficient for assembly. Just follow the instructions and diagrams, and you'll be fine...." Read more

"...A few notes:- Assembly was easy enough.- The stock seat is terrible.- Chain slap is a real thing on this bike...." Read more

"...It came packed really well and is easy to assemble but I do have to admit that it is heavier than I originally thought ...." Read more

"...Assembly was very easy and straight forward. Everything worked after assembly...." Read more

12 customers mention12 positive0 negative

Customers appreciate the value of the bicycle. They mention it's a good product for the price.

"...The fork will be replaced soon.- Overall a good value and fun bike to rip around on." Read more

"Purchased "used" for a great price, and found it to be packaged as new when it arrived. Assembly was very easy and straight forward...." Read more

"Price is definitely on the lower end for an entry level bike. Excellent for beginners and surprised to upgraded parts considering the price...." Read more

"This bike is way beyond my expectations !!! Price, quality, performance and very smooth to ride!!!...." Read more

11 customers mention11 positive0 negative

Customers find the bike very smooth to ride. They say the cassette is smooth and the bike runs smooth out of the box. Customers also say the bike is well made and easy to ride with comfortable hand grips. They mention that the 27.5-inch wheel eats up obstacles and terrain smoothly.

"...The 27.5-inch wheel eat up obstacles and terrain smoothly. Plus, the bike is good-looking, too. It is a very nice bike, especially for the price." Read more

"...The bike is awesome. Great quality! You feel invincible riding it...." Read more

"...Order a neoprene guard and a guide.- The tires have good grip for New England terrain, but I suspect they'll wear out quickly.-..." Read more

"Fast delivery. Everything was perfect. Bike runs smooth out of the box...." Read more

6 customers mention6 positive0 negative

Customers are satisfied with the performance of the bicycle. They mention that the mechanical discs work as expected, and everything worked after assembly. They also say that the bike is very smooth to ride and has no issues with shocks absorbing potholes and curbs.

"...Assembly was very easy and straight forward. Everything worked after assembly...." Read more

"Fast delivery. Everything was perfect. Bike runs smooth out of the box...." Read more

"...Took it out for a short but quick ride (about 5 miles) and no issues, shocks absorbed potholes, curbs, etc...." Read more

"This bike is way beyond my expectations !!! Price, quality, performance and very smooth to ride!!!...." Read more

3 customers mention3 positive0 negative

Customers find the bicycle easy to maintain and adjust. They say the medium frame fits perfectly and the seat is adjustable.

"...a very nice system that stops the bike confidently, and is easy to maintain and adjust. The 27.5-inch wheel eat up obstacles and terrain smoothly...." Read more

"...IMO I felt this was the right bike for me. I am 5-10 and the Medium frame fits perfect. The bike is easy to put together comes with tools...." Read more

"...Seat is adjustable, but rock hard." Read more

They sent me the wrong bike, but that's ok.
5 Stars
They sent me the wrong bike, but that's ok.
After doing a fair amount of research, I settled on buying a Diamondback Overdrive. I purchased a red 27.5, and they sent me a black 29er. At first, I contemplated returning it but decided not to in the end. I'm glad I kept the 29er. It powers through a lot I think the 27.5 would have trouble with.A few notes:- Assembly was easy enough.- The stock seat is terrible.- Chain slap is a real thing on this bike. Order a neoprene guard and a guide.- The tires have good grip for New England terrain, but I suspect they'll wear out quickly.- Brakes are loud- Front derailleur needs a professional adjustment. You have to beg it to shift on the move.- It's an XC hardtail that wants to go downhill if you let it.- I immediately upgraded the pedals and handlebar. The fork will be replaced soon.- Overall a good value and fun bike to rip around on.
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Top reviews from the United States

Reviewed in the United States on May 16, 2017
One person found this helpful
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Reviewed in the United States on July 18, 2017
17 people found this helpful
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Reviewed in the United States on May 7, 2020
Customer image
5.0 out of 5 stars They sent me the wrong bike, but that's ok.
Reviewed in the United States on May 7, 2020
After doing a fair amount of research, I settled on buying a Diamondback Overdrive. I purchased a red 27.5, and they sent me a black 29er. At first, I contemplated returning it but decided not to in the end. I'm glad I kept the 29er. It powers through a lot I think the 27.5 would have trouble with.

A few notes:

- Assembly was easy enough.
- The stock seat is terrible.
- Chain slap is a real thing on this bike. Order a neoprene guard and a guide.
- The tires have good grip for New England terrain, but I suspect they'll wear out quickly.
- Brakes are loud
- Front derailleur needs a professional adjustment. You have to beg it to shift on the move.
- It's an XC hardtail that wants to go downhill if you let it.
- I immediately upgraded the pedals and handlebar. The fork will be replaced soon.
- Overall a good value and fun bike to rip around on.
Images in this review
Customer image
Customer image
10 people found this helpful
Report
Reviewed in the United States on June 30, 2021
Reviewed in the United States on July 15, 2021
Reviewed in the United States on June 5, 2021
One person found this helpful
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Reviewed in the United States on June 17, 2021
Reviewed in the United States on April 30, 2020
2 people found this helpful
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Top reviews from other countries

John Minty
5.0 out of 5 stars Great value for money
Reviewed in Canada on May 23, 2020
One person found this helpful
Report
C Martin
5.0 out of 5 stars Excellent bike
Reviewed in Canada on October 20, 2020
Jenn Verma
4.0 out of 5 stars Great bike with easy set up
Reviewed in Canada on May 12, 2020
Customer image
Jenn Verma
4.0 out of 5 stars Great bike with easy set up
Reviewed in Canada on May 12, 2020
Super easy setup.
Great ride
The seat is not very comfortable though so I will probably get a new one
Images in this review
Customer image
Customer image
One person found this helpful
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Amazon Customer
5.0 out of 5 stars Great Bike
Reviewed in Canada on June 11, 2020
jonathan whitson
5.0 out of 5 stars Awesome bike
Reviewed in Canada on August 28, 2018