Co-op Cycles CTY 2.1 Step-Through Bike
This product is not available. Good news: we have a newer version.
The tricked-out Co-op Cycles CTY 2.1 Step-Through bike features a low crossbar, a 3 x 8 drivetrain, hydraulic disc brakes and a shock-absorbing fork that lets you detour off-street with ease.
Shop newer versionKey Details
- Relaxed geometry puts you in a fully upright position, optimizing comfort and steering control as well as visibility in every direction
- Suspension fork provides 63mm of travel to smooth out rough roads; you can lock the suspension out when it isn't needed to increase control
- Reflective sidewalls enhance visibility
- Riser handlebar puts your hands in a natural position to reduce strain
- 24 smooth-shifting gears help you through a variety of terrains and grades
- Shimano M315 hydraulic disc brakes provide sure stopping power in variable weather
- Ergonomic grips provide comfort and support hands
- Accommodates a rear rack and fender (rack and fender sold separately)
- Bicycle weight limit is 300 lbs. total, including rider + all gear carried on the bike and on the rider's body
- NOTE: Specs and images are subject to change based on component availability
Imported.
- 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 | Urban Cycling |
|---|---|
| Frame | Aluminum |
| Step-Through | Yes |
| Bike Suspension | Front Suspension |
| Fork | SR Suntour Nex HLO |
| Fork Travel | 63 millimeters |
| Crankset | Shimano, 48/38/28 |
| Bottom Bracket | Cartridge |
| Shifters | Shimano Altus trigger shifters |
| Front Derailleur | Shimano FD-M191 |
| Rear Derailleur | Shimano Acera |
| Rear Cogs | Shimano HG41, 11-34, 8-speed |
| Number of Gears | 24 |
| Brake Type | Hydraulic Disc Brake |
| Brakes | Shimano M315 hydraulic disc brake |
| Brake Levers | Shimano Solve |
| Rims | Co-op Cycles |
| Front Hub | Joytech, 32h |
| Rear Hub | Joytech, 32h |
| Wheel Size | 700c |
| Tires | Kenda Kick-Back, 700 x 40mm with reflective sidewalls |
| Tire Width | 40 millimeters |
| Handlebar Shape | Riser Bar |
| Handlebar | 6061 aluminum |
| Stem | Alloy |
| Seat Post | 6061 aluminum |
| Saddle | Selle Royal Shadow plus with gel |
| Pedals | Platform |
| Headset | Semi-integrated |
| Chain | KMC Z8 |
| Weight | 30 lbs. 15 oz. |
| Bike Weight | Bike weight is based on median size, as sold, or the average of two median sizes. |
| Gender | Unisex |
| Sustainability | From a Climate Label Certified brand |
| XS | S | M | |
|---|---|---|---|
| Height Range | 5'0" - 5'3" | 5'3" - 5'6" | 5'6"- 5'9" |
| Reach | 352 | 359 | 370 |
| Stack | 597 | 613 | 617 |
| Effective Top Tube | 520 | 544 | 565 |
| Seat Tube Center-Top | 350 | 400 | 450 |
| Standover Height | 26 in. | 28 in. | 28 in. |
| Head Tube Length | 110 | 130 | 130 |
| Head Tube Angle (degrees) | 69.5 | 70 | 70 |
| Seat Tube Angle (degrees) | 74.5 | 73.5 | 72.5 |
| Wheelbase | 1040 | 1049 | 1060 |
| Chainstay | 440 | 440 | 440 |
| Fork Offset | 44 | 44 | 44 |
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.
Better gear is built together
From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.


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assembly required
I bought two of the Co-op bikes so we could get out and all ride our bikes as a family during the quarantine . We put the first one together in about an hour from unwrapping to final assembly. The second one was even faster. The bike gurus could have accomplished it much faster but we enjoyed the father daughter time together. The seat was already mounted, we only had to put-on the quick release for the for the front tire, handle bars and the pedals. The instructions were amazingly easy to follow. It even included a handy set of allen wrenches!
A Happy Last Minute Switch
I originally purchased a Ghost bike online (tore pickup). Despite a ton of research and measuring, when I went to pick up the bike at my REI store, it was way too big (female, around 5'4"). I couldn't justify taking that bike on an upcoming vacation. Normally, I'd just pick out another in-stock bike - but the bike shortage had them pretty much wiped out. Then, the associate offered me a different bike that happened to just come in - the CTY 2.1 Step Through. I took it for a ride nthe parking lot and desparate, I was sold. The bike fit my needs for some great rides on our trip - a comfortable ride! Looking forward to using it for years.
Great Bike!
This bike replaced an REI mountain bike (XS) I bought several years ago. My previous bike seemed a little too small (I am 5'5"), but this bike is a perfect fit. I am also really impressed with the braking system and overall ride. I usually ride on paved trails and am really enjoying riding this bike . It is not as well suited as my mountain bike for unpaved/rocky trails since the suspension is not designed for that like my mountain bike is, but it handles well enough for the amount of time I spend riding rougher trails. In my opinion it is a great dual purpose bike.
this bike *secretly* does it all
Can't express how much I love this bike. I bought this with the purpose of simply riding to and from work, but I've ridden this thing all over Alaska. I've loaded it up with panniers full of camping gear and have gone on multi-day tours over mountain passes over rocks, gravel, pavement, everything. I've climbed hill after hill right next to friends with $1500 touring bikes with no problems. It was left out all winter in -40 temps and emerged like new. this bike is sick y'all
Fantastic women's specific hybrid bike!
I love this bike! After deciding to replace my rusty bike I got as a kid I did a ton of research on brands, components, and features. This is one of the best women's hybrid bikes on the market for less than $1k. The aluminum frame is great, and the front suspension fork gives me enough cushion over bumpy roads. All of the components work great 10 months after buying and I'm excited to use the bike for years to come. I love the larger tires and all the reflective details. I'm happy with the sizing of this bike because I finally don't have to lean extra to reach the handlebars.
Perfect for the city
This is the first time I have spent significant money on a bike and it has been 100% worth it. The hydraulic brakes make me feel safer while navigating the terrible city drivers, the suspension makes the ride smoother when hitting rough roads, and the tire size is perfect middle road to make me feel confident when taking on a rough patch of the streets. It's light enough weight that I can pick it up easily. Absolutely no complaints and great bang for the buck.
Good bike for petite senior
I have had this bike for several months. I mostly ride on paved bike paths with occasional use on gravel. If you you are An older rider or short/petite this bike is worth looking at. I'm 5'2", weigh 118.I am70years old and want to stay fit and active. I was having trouble finding a bicycle that works with my size and physical limitations. With mild arthritis in my ankles and tendonitis in my shoulders I needed to find a bike that was ergonomically right for me. The staff at REI were very helpful and suggested several possibilities. I chose this one because the small size was a good fit, the upright seating position is easy on my shoulders and the shifting is quite easy. The main selling point though was the arm reach, which was not quite right on most bikes I tried. Those are all pros. The only con is that the weight of this bike is a bit higher than average because of the shock absorbers I don't mind, but if you have to lift your bike a lot it might matter. Bottom line: a quality bike that meets my needs.
Wonderful bike- co-op
I am a short old lady 72) that likes to ride -in spite of a new knee, screws in my back etc.- my new extra small sized bike is light weight enough for me load on my car- it shifts like a dream and the bigger tires make it an easier ride for me further - it’s wonderful!
Want a second one !! Saving up!!
Love this bike ! It has been used by my kids and they fight over it ...want to get a second one so saving job! My daughter learned to ride a bike on this bike.
GREAT bike!!
This bike was purchased to ride on the streets for twenty mile rides and on the local NCR trail. As my first bike in over twenty years, it's a breeze to ride. I'm 5'5" and ordered a medium rather than a small since I don't have particularly long legs. I have the rack put on it for swimming gear as well as lights and a horn. While it doesn't have a place to put on a water bottle, I prefer an osprey backpack anyway. My goal is to use it indoors on a Wahoo stand over the winter and in warmer weather then attach a Burley dog carrier which I checked on before ordering. This bike meets all of my needs and it is money well-spent.

