How to Choose Mountain Bikes
Co-op Cycles DRT 4.1 Fat-Tire Mountain Bike
$898.93Compared to $1,499.00* Save 40%
When life gives you roots, rocks, sand or snow—anything, really—you'll be thrilled that you can roll over it like it's shag carpet when you're astride the Co-op Cycles DRT 4.1 fat-tire mountain bike.
Key Details
Wheel Size
26 inches
Number of Gears
12 gear(s)
- Strong, rigid aluminum frame keeps the ride fast and saves the weight of a suspension fork—who needs it with those tires soaking up the bumps!
- Fat-tire bikes are all about floating; this one rolls on Innova 26 x 4.8 in. (!) tires that'll glide over just about anything but have low-profile knobs for speed on hardpack
- 1 x 12 drivetrain with SRAM X1 1000 Eagle™ crankset and SRAM SX Eagle 12-speed rear derailleur for swift, streamlined shifting and reduced overall weight
- Shimano hydraulic disc brakes deliver reliable stopping power on or off road and in variable weather conditions
- Front and rear thru axles provide added rigidity
- Bicycle weight limit is 300 lbs. total, including rider plus all gear carried on the bike and on the rider's body
- 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 DRT Product LineView all Co-op Cycles Rigid Mountain 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 | Mountain Biking |
|---|---|
| Frame | Co-op Cycles 6061 aluminum |
| Mountain Bike Style | Fat-tire |
| Bike Suspension | No Suspension |
| Fork | 6061 aluminum |
| Crankset | SRAM X1 1000 Eagle™ DUB fat 5 |
| Bottom Bracket | SRAM DUB English BSA 100mm fat |
| Shifters | SRAM SX Eagle 12-speed |
| Rear Derailleur | SRAM SX Eagle 12-speed |
| Rear Cogs | SRAM Eagle, 11-50t, 12-speed |
| Number of Gears | 12 gear(s) |
| Brake Type | Hydraulic Disc Brake |
| Brakes | Shimano Acera MT-400 hydraulic disc |
| Brake Levers | Shimano |
| Rims | 26" aluminum |
| Front Hub | 15mm thru axle |
| Rear Hub | 12mm thru axle |
| Wheel Size | 26 inches |
| Tires | Innova 26 x 4.8 in.; 60 TPI |
| Tire Width | 4.8 inches |
| Handlebar Shape | Riser Bar |
| Handlebar | Co-op Cycles alloy butted aluminum riser |
| Stem | Co-op Cycles 6061 aluminum |
| Seat Post | Co-op Cycles 6061 aluminum |
| Saddle | WTB Pure Sport |
| Pedals | Not included |
| Headset | Internal headset |
| Chain | SRAM SX Eagle |
| Weight | 39 pounds |
| 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 |
Co-op Cycles Bikes (172198)
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Reach | 400 | 425 | 450 | 475 | 500 |
| Stack | 573 | 577 | 587 | 596 | 610 |
| Effective Top Tube | 564 | 591 | 618 | 646 | 675 |
| Seat Tube Center-Top | 360 | 395 | 430 | 465 | 500 |
| Standover Height | 704 | 728 | 750 | 773 | 795 |
| Head Tube Angle (degrees) | 68 | 68 | 68 | 68 | 68 |
| Seat Tube Angle (degrees) | 72 | 72 | 72 | 72 | 72 |
| Wheelbase | 1100 | 1127 | 1156 | 1185 | 1215 |
| Chainstay | 445 | 445 | 445 | 445 | 445 |
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.
Buying Advice
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.
