








🚴♀️ Unlock the trailblazer in your kid with every pedal stroke!
The Mongoose Cipher Kids Mountain Bike is a lightweight, durable aluminum-framed bike designed for children between 4’ and 5’ tall. Featuring a 7-speed rear derailleur with an easy twist grip shifter, dual coaster and linear pull brakes, and rugged Kenda tires on aluminum rims, it offers young riders a confident transition to multi-speed mountain biking. Available in 20” or 24” wheels, it’s built for everyday trail adventures with a five-year limited warranty for peace of mind.









| ASIN | B07XYR2HRS |
| Age Range (Description) | Big Kid |
| Assembly Required | No |
| Best Sellers Rank | #1,636,244 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1,249 in Kids' Bicycles |
| Bicycle Drivetrain Type | Derailleur |
| Bicycle Gear Shifter Type | Twist Grip |
| Bike Type | Kids Bike, Mountain Bike |
| Brake Style | Coaster, Linear Pull |
| Brand | Mongoose |
| Brand Name | Mongoose |
| Color | blue |
| Customer Reviews | 3.5 3.5 out of 5 stars (23) |
| Date First Available | September 16, 2019 |
| Derailleur Configuration | Rear |
| Frame Material | Aluminum |
| Frame Size | 20 |
| Global Trade Identification Number | 00038675187498 |
| Grip Type | Xposure, single density |
| Included Components | Cipher 20 Bicycle |
| Item Package Dimensions L x W x H | 44.75 x 22.25 x 8 inches |
| Manufacturer | Pacific Cycle, Inc. |
| Material | Other |
| Maximum Weight Recommendation | 150 Pounds |
| Minimum User Height | 48 Inches |
| Model Name | Mongoose cipher kids mountain bike |
| Number of Items | 1 |
| Number of Speeds | 7 |
| Package Weight | 12.61 Kilograms |
| Part Number | M55400U10OS-PC |
| Power Source | Pedal power |
| Size | 20-Inch |
| Special Feature | Lightweight |
| Style | 20-inch Wheels |
| Suggested Users | unisex-child |
| Suspension Type | No Suspension |
| UPC | 038675187498 |
| Warranty Description | five year limited warranty, 1 year on normal wear parts |
| Warranty Type | Limited |
| Wheel Material | Aluminum |
| Wheel Size | 20 Inches |
| Year | 2020 |
L**V
Lightweight
Good bicycle! Lightweight
S**6
Not a good experience
Components supplied were different than those in pictures. Supplier sent a 3 speed nexus bike, even though description clearly said 7 speed nexus. Chain guard was different etc. than in photos. All together poor performance. Not a good experience.
J**F
WAY TOO SMALL FOR HEIGHT RECOMMENDED
I have no idea if this is a good bike or not as my daughter couldn't ride it. She is 4'6 and the 20" size is recommended for 4-5 ft. 24 is recommended for 4'8+. DO NOT BUY IF YOUR KID IS OVER 4'2
L**S
Very Nice Starter Mountain Bike
This lightweight, yet sturdy mountain bike is ideal for our ten year old. We ordered the 24” wheels with alloy V-brakes. All parts and pieces look well-made, except the brackets for the rear red reflectors that are supposed to mount under the seat are too small to fit the seat post. That’s the only reason it’s receiving a four star rating instead of five. The parts that require assembly are the handlebars, front wheel, front wheel quick-release lever, pedals, and the seat post with the seat already attached. The owner’s manual provides clear instructions with detailed illustrations. There were no surprises during assembly. You don’t have to be a bicycle specialist to assemble and fine-tune some of the working parts, but a basic familiarity with how multi-speed bikes work will help. No rear derailleur adjustments were necessary and the front brakes needed only minor fine tuning. Beginners will appreciate that all seven speeds are controlled by a single twist shifter, which operates smoothly. The chain is kept centered on the front pedal sprocket with a type of chain guard that should help keep pant legs from getting caught between the chain and the sprocket. I’ll use a hex wrench to adjust the handlebar angle as our child grows and raise the seat with the quick release lever. The bike has a clamp (headless) handlebar stem, which can't be raised, but it does angle for a more comfortable ride. Our ten year old really likes the bike's sporty colors, and the way it handles on all types of terrain.
B**E
Fits ME just Fine!!
The first thing i noticed, even before i assembled this bike was the way the cant, and the angle of the design seemed to put the center of gravity right under the rider and the way the rider naturally leans forward a bit to transfer some of that stability to the front end. I also liked the weight and thickness of the parts during and after assembly. The 7 speeds, the shifter, brakes -- are ergonomic and easy to access and use. The color is eye catching and the bike looks and feels sturdy enough to last with proper maintenace, including keeping the tires properly inflated and damage-free. Its more of a good solid touring bike than a mountain bike but it can handle the rough spots as needed.
W**M
Great Bike For a Kid
This bike is very sturdy and can take a beating. It has been ridden down stairs, on rocks, through the woods and of course up and down the street. It has lasted for miles and miles without any problems.
C**W
High Quality, Complete With Chain Guard and Shimano Twist Shifter!
My 8 year old loves this bike and I found the build quality to surpass my expectations! I'd actually never seen a twist shifter on a children's bike before and was impressed with the overall build quality and relative ease of assembly (though buyers should be aware that they'll need their own hex wrenches to put everything together). There's even a quick release skewer for the front tire! The guard over the chain is another nice touch, as my kids tend to get paint legs nabbed on the chain occasionally, and the feature alleviates that worry. Highly recommend this as a higher end children's bike!
S**E
Sent the wrong one
You get a flat box with some assembly required. I ordered the 24 inch and ended up with the 20 inch so I will go ahead and write up what I found on the 20 inch. Assembly was easy with basic knowledge, skills and tools. The 20 inch comes with both the rear hub brake and hand brakes as an entry for young riders into the full size bike setup without taking away the security of their tried and true braking system. As a kid I hated this kind of bike but as a parent getting this bike for a younger rider just makes sense. The 20 inch is not a trick bike or anything like that, it is an entry level bike into the trail and off road biking scene and this bike is very high quality for just that. Great off road capability and very fun to take on the biking trails. It has a hardtail design which helps with rigidity and prevents unexpected breakdowns on the trail. All in all this is an excellent entry level off road bike
Trustpilot
2 weeks ago
1 week ago