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Mongoose Grafton Mountain Bike, 24, 26 or 27.5 Inch Bike, 21 Speed, Aluminum Frame, Knobby Mountain Tires, Suspension Fork, Trigger Shifters, Mechanical Disc Brakes, Teal, Tan, Blue or Purple

  • Based on 96 reviews
Condition: New
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$299.99 Why this price?

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Availability: Only 7 left in stock, order soon!
Fulfilled by Amazon

Arrives Thursday, Jul 3
Order within 17 hours and 36 minutes
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Size: 26-Inch Wheels


Color: Teal


Features

  • FAT TIRE MOUNTAIN BIKE: Go exploring with the Grafton by Mongoose. Featuring 26-inch wheels, this bike is perfect for riders from 5'4" - 6'2" tall. Roll over difficult terrain with ease.
  • BORN IN DIRT: From pavement to singletrack, the aluminum hardtail frame is built for adventure. With modern geometry and an internal headset, this womens and mens mountain bike offers a clean, streamlined look.
  • BUILT FOR ADVENTURE: This Mongoose mountain bike is ready to roll with 2.3-inch-wide knobby mountain tires for superior grip and stability. The suspension fork absorbs bumps and rough terrain, ensuring a smooth, controlled ride.
  • SHIFT INTO GEAR: This 21-speed bike features trigger shifters for smooth transitions and the right gear for your ride. Mechanical disc brakes provide reliable all-weather stopping power, giving riders control on varied terrain.
  • KNOW YOUR ROOTS: As one of the OGs in BMX and action sports, Mongoose has helped bring this movement to the world. For over 50 years, we've been all about epic rides and pushing limits and we're just getting started.

Description

Adventure starts where the pavement ends with the Mongoose Grafton, an adults and kids mountain bike built for all-terrain fun. With 24, 26 or 27.5-inch wheels, this adults, boys and girls mountain bike is ideal for riders between 4'8"" - 6'0"", perfect for bringing all explorers into the action. Its aluminum rims and 2.3-inch-wide knobby mountain tires provide superior traction and stability. The aluminum mountain frame is easy to handle while offering a clean look with its modern geometry and internal headset. Equipped with trigger shifters, this 21-speed bike ensures smooth shifting and a wide gear range for tackling your ride. Mechanical disc brakes provide reliable stopping power in varied conditions, keeping riders in control. Whether taking on the trail or cruising the neighborhood, the Grafton is ready for the adventure. Assembly is easy with a few common household tools and the included instruction guide. At Mongoose, we know our roots – as pioneers in BMX and action sports for over 50 years, we're dedicated to delivering an epic ride every time. Get ready to push the limits.

Bike Type: Mountain Bike


Age Range (Description): Adult


Brand: Mongoose


Number of Speeds: 21


Color: Teal


Wheel Size: 26 Inches


Frame Material: Aluminum


Suspension Type: Front


Special Feature: Lightweight, Aluminum Frame, mountain bike


Included Components: Bike


Bike Type: ‎Mountain Bike


Age Range (Description): ‎Adult


Brand: ‎Mongoose


Number of Speeds: ‎21


Color: ‎Teal


Wheel Size: ‎26 Inches


Frame Material: ‎Aluminum


Suspension Type: ‎Front


Special Feature: ‎Lightweight, Aluminum Frame, mountain bike


Included Components: ‎Bike


Size: ‎26-Inch Wheels


Brake Style: ‎Disc


Style: ‎Teal


Model Name: ‎Grafton


Power Source: ‎Pedal power


Wheel Material: ‎Aluminum


Year: ‎2022


Maximum Weight Recommendation: ‎220 Pounds


Assembly Required: ‎Yes


Bicycle Gear Shifter Type: ‎Trigger


Is Autographed: ‎No


Minimum User Height: ‎64 Inches


UPC: ‎038675091375


Bicycle Drivetrain Type: ‎Derailleur


Manufacturer: ‎Pacific Cycle, Inc.


Item Package Dimensions L x W x H: ‎56 x 27.5 x 8.5 inches


Package Weight: ‎19.78 Kilograms


Brand Name: ‎Mongoose


Warranty Description: ‎One year limited warranty


Material: ‎Aluminum


Suggested Users: ‎unisex-adult


Part Number: ‎R8023


Date First Available: December 5, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jul 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Nice and strong bicycle.
Size: 27.5-Inch Wheels Color: Blue
Easy to assemble, smooth ride. Why did you pick this product vs others?: Good brand and sturdy design, and nice blue color.
Reviewed in the United States on June 20, 2025 by Javier Rodriguez Salomon

  • Poor quality - Not worth the headache
Size: 26-Inch Wheels Color: Teal
After having an unreasonably difficult time trying to assemble this bike, I finally realized the front fork was bent so badly I couldn’t fit the front wheel in place. After calling mongoose for support, I was told that they no longer stock replacement forks for this bike and to return it. The only riding time this bike had was on the delivery truck, and I hope it enjoys the ride back. Very disappointed. ... show more
Reviewed in the United States on May 22, 2025 by Ethan F

  • Perfect bike
Size: 26-Inch Wheels Color: Teal
My Daughter LOVES this bike and its disc breaks!
Reviewed in the United States on June 4, 2025 by Lora Parrish

  • Best price around!!!
Size: 27.5-Inch Wheels Color: Blue
I found this same bike at a big name sporting goods chain store for almost double. All aluminum frame with shocks. I can’t say enough about the price this is selling for.
Reviewed in the United States on May 9, 2025 by Jerel Hotaling

  • Best bikes
Size: 26-Inch Wheels Color: Teal
I purchased this bike for my wife and she absolutely loves it mongoose bikes is our family’s go to for bikes they’ve never let us down quality is one of the best in the business
Reviewed in the United States on January 4, 2025 by Mark Russell

  • Don't waste your time
Poor quality bike. Derailleur doesn't work well. The back wheel makes a grinding noise (suspect internal parts are flawed). Ignored previous warnings from other people and spent several hours trying to fix the derailleur issue. Gave up and returned it. Too much of wasted time.
Reviewed in the United States on June 1, 2025 by Sergey M.

  • nice bike
Size: 26-Inch Wheels Color: Tan
nice bike for the price, its a little heavy.
Reviewed in the United States on November 11, 2024 by mildred silva

  • definitely ridable in the snow and slush
Size: 27.5-Inch Wheels Color: Blue
hopefully it doesnt rust the bolts out as one started to rust already. all terrain perfect for even snowy weather. love it. could you please change the rating to five stars.
Reviewed in the United States on December 21, 2024 by i llllooooovvvveeeee this bike. definitely gets 5 stars from me!!! flies through the snow in the new york weather. doesnt even spin out on ice!

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