Diamondback Overdrive ST Hardtail Mountain Bike

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The Diamondback Overdrive ST is a hardtail mountain bike. Lighter than a full suspension mountain bike and faster on the uphill, hardtails are great for ripping across cross country trails. The classic geometry of the Overdrive ST emphasizes traction and straight line speed. It smooths out the trail as it rolls over uneven terrain, making it one of Diamondback’s fastest mountain bikes.

This bike is part of Diamondback's READYRIDE series. Diamondback READYRIDE bikes eliminate the usual hassle of tedious at-home bike assembly, an often-ignored process that can take hours. READYRIDE bikes are hand-built and shipped direct to you. The process is simple. You need only to re-install the front wheel and put on the seat and pedals. That’s it: just put these finishing touches on the build, pump up your tires, and go!

  • Hand built 6061-T6 aluminum alloy hardtail frame is classic mountain biking
  • Custom formed and butted tubing combines lightweight and stiffness
  • 27.5" wheels roll well over obstacles and offer quick handling
  • SR Suntour XCT fork delivers 100mm of suspension travel
  • Finding your perfect fit

Shipping Note: Shipping to Alaska and Hawaii is not available for this item.

Warranty: 1 Year Diamondback


Size Guide
Small: 64" - 67" rider height, 27" standover height
Medium: 67" - 70" rider height, 29" standover height
Large: 70" - 73" rider height, 31" standover height
XL: 73" - 76" rider height, 32.5" standover height
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
Headset: Integrated FSA Drop-in ACB upper,  Zero Stack lower internal cup and cartridge bearing,  1 1/8"
Cranks: Suntour XCT, 42/32/22T
Bottom Bracket: Square Taper - 5pc
Front Derailleur: Shimano Tourney,  top pull,  31.8
Rear Derailleur: Shimano Acera M360, 8 Speed
Shifters: Shimano Altus EF-51 3x8spd
Cogset: Shimano HG-31, 8 Speed, Cassette, 11-32T
Chain: KMC-Z82
Front Hub: 32h MX260 Alloy w/ CNC Disc Mount
Rear Hub: 32h SL-7 Alloy w/ CNC Disc Mount, Cassette
Spokes: Black 14g Stainless
Rims: DB SL7 27.5" 32h, Doublewall
Tires: Chaoyang Hornet 27.5x2.1
Brakes: Tektro Aires Mechanical Disc w/  160mm Front / 160mm Rear Rotors
Brake Levers: Shimano Altus EF-51
Pedals: Alloy Forged
Handlebar: DB Flat Bar, 720mm wide, Flat Bar,31.8mm
Grips: DB4L 135mm Kraton
Stem: DB AL6061 Ahead, 31.8mm, 7°
Seat: DB Race s M-series Saddle
Seat Post: DB Laser Micro Adjust 30.9mm
Extras: Owner’s manual
Small: 31.4 pounds
Medium: 31.75 pounds
Large: 32 pounds
XL: 32.3 pounds

Imported: Made in China

In the box:

(1) Diamondback Overdrive ST Hardtail Mountain Bike

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Overdrive ST Hardtail Mountain Bike
$369.99 Sold Out Sporting Goods
$369.99 USD false 1 Retail EA
1 3
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4121 International Pkwy Carollton TX 75007 U.S.A.