Overdrive Comp 27.5

star(s) from 7 reviews.

Availability: In stock



27.5" version of our long-running MTB favorite!
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Overdrive Comp 27.5

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The Overdrive Comp is a classic hardtail in the tradition of cross-country trail bikes, made for riders who relish all-around speed. Its aluminum frame features butted and formed tubes in a neutral geometry, making it lightweight and responsive on trail. This year we’ve outfitted the Overdrives with 27.5” wheels, making them easier to control in tighter spots without sacrificing too much traction and speed. They’re still the fastest mountain bikes we sell, able to rocket through rolling terrain and fly up climbs. With Shimano hydraulic disc brakes (180/160mm rotors), SRAM 1×11 drivetrain, and a smooth Rockshox fork, the Overdrive Comp has a component group that matches its performance. Knock some time off your personal bests with this fast hardtail.

Ready Ride bikes are shipped 95 percent assembled. Typical bike assembly is time-consuming and requires technical know-how. Ready Ride reduces the time and skills needed for the final, four-step assembly.

Frame Overdrive 27.5" Butted 6061-T6 Aluminum, Formed Top / Down Tube, Machined Headtube, Forged Drop Outs w/ Replaceable Hanger
Fork RockShox 30 Silver, TK-27.5" w/ Turn Key Lockout, 120mm Travel, 15mm Thru-axle w/ Rebound and Compression Adjust
Headset FSA NO.42, Sealed Cartridge for Tapered Headtube
Cranks SRAM NX 1x, w/ X-Sync 30T Chain Ring
Bottom Bracket SRAM GXP
Rear Derailleur SRAM NX X-Horizon, 11 Speed
Shifter SRAM NX 11 Speed X-Actuation Trigger
Cogset SRAM PG1130, 11 Speed, 11-42T
Chain SRAM PC-1130, 11 Speed, Power Link
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
Spokes 14g Stainless Steel
Rims Diamondback Blanchard 25, Tubeless Compatible
Tires Kenda Honey Badger 27.5x2.2"
Brakes Shimano BR-M355 Hydraulic Disc, w/ 180mm Front /160mm Rear Center Lock Rotors
Brake Levers Shimano BR-M355 Hydraulic Lever w/ Reach Adjust
Pedals DB4L Alloy Platform
Handlebar Diamondback "Pro Bar", 740mm Wide, 15mm Rise, 31.8 Bar Bore
Grips DB4L 135mm Kraton
Stem DB 3D Forged, 7° Rise, 31.8 Bar Bore
Seat DB Race M-series Saddle
Seatpost DB Alloy Micro Adjust 30.9mm
Extras Owner's Manual, Assembly Guide, Tool Kit
Bike Weight 28.64 lbs
Accessories Overdrive 27.5" Butted 6061-T6 Aluminum, Formed Top / Down Tube, Machined Headtube, Forged Drop Outs w/ Replaceable Hanger
Bike Size S/16" / Rider Height: 5'4" - 5'7" M/18" / Rider Height: 5'7" - 5'10" L/20" / Rider Height: 5'10" - 6'1" XL/22" / Rider Height: 6'1" - 6'4"
Seat Tube Length 410mm 460mm 510mm 560mm
Stand Over Height 758mm 796mm 831mm 867mm
Top Tube Length 574mm 600mm 620mm 640mm
Stack 575mm 593mm 611mm 630mm
Reach 398mm 418mm 433mm 447mm
Head Tube Length 105mm 125mm 145mm 165mm
Head Angle 68° 68° 68° 68°
Seat Angle 73° 73° 73° 73°
Wheel Base 1082mm 1110mm 1132mm 1154mm
Chain Stay Length 425mm 425mm 425mm 425mm
Fork Offset 44mm 44mm 44mm 44mm
BB Drop 44mm 44mm 44mm 44mm
Stem Length 70mm 70mm 80mm 80mm
Handlebar Width 740mm 740mm 740mm 740mm
Crank Length 170mm 175mm 175mm 175mm
Seat Post Length 350mm 350mm 350mm 350mm

Customer Reviews Write Your Own

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Overall Quality


Review by stalin
Overall Quality

I bought this bike a month back and its been great. light fast all the things you want in a bike. my only problem is that the seat is like a rock and it went on sale a week after i bought it so bummed out but other than that perfect bike.

(Posted on 3/1/2018)

Excellent buy

Review by Joshknee
Overall Quality

Bought it on sale on this site. For what you get it seemed to be a fantastic deal. I've taken it on a few rides, one of them a pretty long downhill and it was a blast. I am a very novice Rider.

(Posted on 2/25/2018)


Review by Christopher
Overall Quality

Great vike fpr the money.
Would be 5 stars but the wheels dont like tubeless. Leak overnight no matter what.

(Posted on 2/25/2018)

Worth every penny

Review by YL
Overall Quality

Denver has a bunch of annoying hills everywhere and I wanted to get a better bike for a while to take them on. I chose Overdrive Comp and so far no regrets. It's pretty light, visually pleasing, surprisingly maneuverable, and it is going uphill nicely. The gears are simple, shift smoothly and have enough range. It is a bit slower going downhill than my old Wildwood, but it turned out to be a blessing since I don't have to wear out my brakes to control the descent. I definitely felt less tired compared to the old bike on the same route. Now it won't win any speed trophies, but this is no road bike after all and so I will not penalize it by taking stars off. IMHO one of the best mountain bikes under $1K (I did get it on sale).

(Posted on 2/19/2018)

Awesome Bike for the money

Review by Tom R.
Overall Quality

I use this bike for singletrack with some jumps and it does really handle great. Its 1x11 NX drive train works well too. When i got the bike i was surprised to see tools to help aid in what little there is too assemble. Not only were the wheels tubeless ready but, Diamond back did include valvestems to go tubeless! that saves you at least 20 dollars. The wheels are are built strong but the brakes are a little weak at first but break in and are decent. I would consider buying DB products again!

(Posted on 9/27/2017)

Great bike for both trail and light mountain riding

Review by Duckman12
Overall Quality

I've had this bike for a little over a year now and I've extremely pleased. I utilize it primarily for trail riding but occasionally for mountain riding in the hills of Arizona. Versatile enough to take out on the roads for a leisurely ride with the family. Very good components for the price point. I would purchase again.

(Posted on 8/20/2017)

Absolutely great deal

Review by totalkewl
Overall Quality

This is probably the best 27.5" HT bike you can get for the money. 1x11 NX drivetain with a decent fork. Fast, smooth, use it for singletrack, cruising, even some jumping.. it's really a great bike.

(Posted on 7/30/2017)


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