How to Choose a Gravel Bike
Co-op Cycles ADV 2.1 Bike
$1,499.00
Members get an est. $149.90 in rewards
Explore more places, more often. The Co-op Cycles ADV 2.1 bike comes equipped to take you wherever your adventure may be. Plus, multiple accessory mounts let you fit everything you want to carry.
Key Details
Wheel Size
700c
Number of Gears
10 gear(s)
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- Wide-range 1 x 10-speed microSHIFT Sword groupset is great for beginners and experienced cyclists alike
- The simplicity of a single front chainring combined with the 11–48-tooth cassette gives you the speed you need on the flats and the gear range for when the road goes uphill
- Clutched rear derailleur helps keep the chain secure over rough terrain
- Stable but lively, gravel-forward 6061 aluminum frame features a full carbon fork, internal cable routing and plenty of accessory mounts
- Multiple accessory mounts let you fit everything you want to carry
- Mounts include triple bottle cage mounts on down tube and both fork legs, 2-bolt cage mounts on the seat tube and under the down tube, and under/over double mounts on top tube
- Also features fender/rack mounts on seatstays and a fender mount on the chainstay bridge
- Spec'd with 700c x 45 mm tires; fits tires up to 45 mm wide with fenders (fenders not included)
- Offered in 5 sizes for heights 5' to 6'3"
- 12 mm front thru axle, 12 mm rear thru axle and SRAM UDH (universal derailleur hanger) for universal repairability and lateral stiffness
- Frame is compatible with a 27.2 mm diameter dropper post (not included)
- WTB Silverado saddle with relief section for riding comfort
- Durable WTB double-wall rims are tubeless-ready for riders who wish to upgrade to a tubeless tire system
- Tektro dual-piston mechanical disc brakes with compressionless housing for confident, low-hand-force braking
- Co-op Cycles gravel-flare handlebar with anti-slip, shockproof pinhole tape provides multiple hand position choices and vibration damping
- Pedals not included
- NOTE: Specs and images are subject to change based on component availability
Imported.
This bike comes with Coast to Coast Support, which includes:
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 Co-op Cycles ADV Product LineView all Co-op Cycles Gravel Bikes- 1 year of free adjustments (see more below)
- In-store bike assembly
- Pickup in store or curbside
- Bike experts available at 170+ bike shops
- 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)
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.
| Best Use | Gravel Cycling Road Cycling |
|---|---|
| Frame | Co-op Cycles aluminum with SRAM UDH Road; 12 mm thru rear axle; 3 pack downtube bottle mount; top tube mounting points; under down tube bottle mount; rack and fender mounts; dropper post compatible |
| Bike Suspension | No Suspension |
| Fork | Co-op Cycles ADV 2 Series full carbon fork; 51 mm offset; clearance for 45 mm tire with fender; 12 mm thru axle; mounting points for accessories |
| Crankset | ProWheel 10-speed; 40T; size-specific arm length |
| Shifters | microSHIFT Sword Drop Bar Shifters SB-G7000-R, 1 x 10-speed |
| Rear Derailleur | microSHIFT Sword 1x RD-G7005M, 1 x 10-speed, with clutch; max sprocket: 42-48T; total capacity: 37T |
| Rear Cogs | microSHIFT Advent X, 10-speed CS-H104 11-48T |
| Number of Gears | 10 gear(s) |
| Brake Type | Mechanical Disc Brake |
| Brakes | Tektro MD-C550 flat-mount mechanical disc with metal/ceramic pads and 160 mm Tektro 6-bolt rotors; compressionless brake housing |
| Rims | WTB ST i21 TCS 2.0, 29 in./700c, 32-hole, tubeless-ready |
| Front Hub | Formula 100 x 12 mm thru, 32-hole, 6-bolt |
| Rear Hub | Formula 142 x 12 mm thru, 32-hole, 6-bolt |
| Wheel Size | 700c |
| Tires | Kenda Piedmont 700c x 45mm, 30 tpi, wire bead |
| Tire Width | 45 millimeters |
| Handlebar Shape | Drop Bar |
| Handlebar | Co-op Cycles Aero-Ergo, 31.8 mm diameter, 12 deg. flare, 80 mm reach, 125 mm drop; size-specific width |
| Stem | Co-op Cycles 6061 aluminum 4-bolt stem with open faceplate, 37 mm stack height, 31.8 mm bar bore, 6 deg. rise; size-specific extension |
| Seat Post | Co-op Cycles 6061 aluminum 27.2 mm diameter; size-specific length |
| Saddle | WTB Silverado with steel rails |
| Pedals | Not included |
| Headset | Integrated; 1-1/8 in. upper, 1-1/2 in. lower; ACB bearings |
| Chain | KMC X10 10-Speed |
| Weight | Unavailable |
| Gender | Unisex |
| Sustainability | From a Climate Label Certified brand |
Co-op Cycles Bikes (254161)
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Height Range | 5'0"-5'3" | 5'3"-5'6" | 5'6"-5'9" | 5'9"-6'0" | 6'0"-6'3" |
| Reach | 365 | 375 | 385 | 393.4 | 403.4 |
| Stack | 542 | 560 | 581 | 602 | 623 |
| Effective Top Tube | 520.4 | 536 | 556.5 | 571.7 | 587.9 |
| Seat Tube Center-Top | 385 | 435 | 470 | 500 | 530 |
| Standover Height | 689.5 | 728.2 | 758.1 | 788.1 | 814.3 |
| Head Tube Length | 100 | 114 | 138 | 160 | 180 |
| Head Tube Angle (degrees) | 69.8 | 71 | 71.5 | 71.5 | 72 |
| Seat Tube Angle (degrees) | 74 | 74 | 73.5 | 73.5 | 73.5 |
| Wheelbase | 1023 | 1028 | 1041 | 1057.5 | 1069 |
| Chainstay | 438 | 438 | 438 | 438 | 438 |
Sizing Notes
Measurements are stated in millimeters unless otherwise indicated.
How we measure bikes
- 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.
- Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
- 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.
- 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.
- 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.
- Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
- Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
- Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
- Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
- Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
- Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
- 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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Customer Images
Location:Snoqualmie, WA
Age:35–44
Weight:175–200 lbs.
Inseam:30"
Height:5'8"
Experience Level:Beginner
Riding Frequency:Multiple times per week
1 week ago
Great all-around bike - versatile and fun
Yes , I recommend this product
I’ve put about 300 miles on the ADV 2.1 over the past few weeks across a mix of pavement and gravel, and overall I’ve been really impressed. It’s a super versatile bike that feels right at home on everything from smooth roads to rail trails and light gravel. The ride quality is solid—comfortable without feeling sluggish, and stable enough that I don’t think twice about taking it onto rougher sections. It climbs well and handles predictably, which has made it easy to just get out and ride without overthinking gear or terrain. A couple of minor callouts: I wish it came set up tubeless out of the box. The rims are ready, so it feels like a missed opportunity not to include tubeless tires from the start. On the top end, the gearing feels a bit limiting. On steeper downhills, I find myself spinning out sooner than I’d like. Neither of those are dealbreakers, and both are fixable depending on how much you want to tweak the setup. Overall, this is a great all-around bike—especially if you’re looking for something that can handle road + gravel without needing multiple bikes. It’s been a really fun ride so far and I’d recommend it without hesitation.
Age:35–44
Weight:175–200 lbs.
Inseam:30"
Height:5'8"
Experience Level:Beginner
Riding Frequency:Multiple times per week