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Mongoose

Mongoose Impasse Full Suspension Mountain Bike, Men and Women, 18-Inch Aluminum Frame, 29-Inch Wheels, Front and Rear Disc Brakes, Twist Shifters, 21-Speed Rear Deraileur, Silver

  • Based on 1,238 reviews
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Returnable until Jan 31, 2026

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Availability: Only 1 left in stock, order soon!
Fulfilled by Global Bridge Logistics
Arrives Apr 2 – Apr 6
Order within 12 hours and 28 minutes
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Size: 29-Inch Wheels


Color: Silver


Features

  • Enhance comfort and performance with the 18-inch aluminum suspension frame, while the 29-inch wheels fit riders 5'4" to 6'2" tall
  • Element suspension fork smooths the bumps and increases control
  • Effortlessly switch gears with the 21-speed rear derailleur equipped with SRAM twist shifters
  • Alloy wheels with quick-release front, Superior braking performance of the alloy front and rear disc brakes, reliable stopping power for enhanced safety and control
  • Assembly Tip: Ensure wheel is as centered between the fork legs, if quick-release lever closes easily, open and tighten the adjustment nut further, if difficult to close, open the quick-release lever, loosen the adjustment nut a little, and try again

Description

Take on rough terrain with the Impasse by Mongoose. The Impasse features a lightweight aluminum hardtail frame with front suspension fork that’s ready for the trail. The 21-speed Sram twist shifters with rear derailleur let you adapt to your terrain with ease, while the front and rear disc brakes provide crisp stopping power every time. Plus, the 29-inch knobby tires give you all the traction you need to conquer rugged trail conditions. There’s nothing you can’t do on a Mongoose.

Bike Type: Mountain Bike


Age Range (Description): Adult


Brand: Mongoose


Number of Speeds: 21


Color: Silver


Wheel Size: 29 Inches


Frame Material: Aluminum


Suspension Type: Full


Special Feature: 21 speed, Aluminum Frame, Lightweight, mountain bike


Included Components: Bike


Bike Type: ‎Mountain Bike


Age Range (Description): ‎Adult


Brand: ‎Mongoose


Number of Speeds: ‎21


Color: ‎Silver


Wheel Size: ‎29 Inches


Frame Material: ‎Aluminum


Suspension Type: ‎Full


Special Feature: ‎21 speed, Aluminum Frame, Lightweight, mountain bike


Included Components: ‎Bike


Size: ‎29-Inch Wheels


Brake Style: ‎Disc


Specific Uses For Product: ‎Trail


Item Weight: ‎44 Pounds


Style: ‎Impasse


Model Name: ‎Impasse


Power Source: ‎Pedal power


Wheel Material: ‎Alloy Steel


Seat Material Type: ‎Plastic


Warranty Type: ‎Limited


Maximum Weight Recommendation: ‎250 Pounds


Assembly Required: ‎Yes


Bicycle Gear Shifter Type: ‎Twist Grip


Global Trade Identification Number: ‎11


Minimum User Height: ‎64 Inches


Derailleur Configuration: ‎Rear


UPC: ‎038675278011


Bicycle Drivetrain Type: ‎Derailleur


Manufacturer: ‎Pacific Cycle, Inc.


Frame Size: ‎18 Inches


Frame Type: ‎Hard Tail


Item Package Dimensions L x W x H: ‎56.5 x 30 x 9.5 inches


Package Weight: ‎21.77 Kilograms


Item Dimensions LxWxH: ‎57 x 9 x 31 inches


Brand Name: ‎Mongoose


Warranty Description: ‎Limited Lifetime


Material: ‎Aluminum


Suggested Users: ‎mens


Part Number: ‎R2780


Date First Available: January 12, 2012


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Apr 2 – Apr 6

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.

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Top Amazon Reviews

    • Great Moountain Bike !
This is a great bike for the price. It came mostly already assembled which was a nice surprise. I saved alot of money assembling the rest myself. I am a rough rider so I have already bent and damaged the derailleur which I think should have been better designed. This is a great bike to build on and tweak yourself. It really goes over all the bumps and does what other bikes can not do. I am very impressed with this bike. It is a very fast bike and I have had a tone of fun riding it. I wish the seat was a bit taller and the crank shafts a bit longer as I am 6'3" and around 230 pounds. You really can't beat the price. A similar bike that is swift and has a full suspension like this goes for around $700-$800 so I feel like I got a great deal. I saved on not having it assembled and that was a huge plus. Really the only downside was that its made in China so everything is delicate and the quality of the metal is not as good as it should be. Mongoose has always made the best bikes in my opinion and its just wonderful that they offer a full suspension 29er at this price. The bike is delicate and its noticeable how things made in China are done with the minimal amount of material in order to save money so things on this bike bend and break easily when you really bang it through trails like I do. I suppose it would be fine if you ride on the streets mostly. I just wish it was built stronger and built to last longer without needed frequent maintenance and repairs. I understand how the manual recommends frequent preventative maintenance but I just don't have the time to do all that and I ride really hard. If I could have afforded a really expensive bike I would have still chosen a Mongoose. I plan on adding to this bike so its more durable and can take the abuse I give it when I ride it in the woods and up and down mountains. I like to go over rocks with it. I will be a loyal customer of Mongoose for life. The feel of a real Mongoose once you get to riding is unlike any other bike. You just can't find a great bike like this for a better price. ... show more
Reviewed in the United States on September 29, 2016 by Oli
    • Sturdy and well made, but expect to have a lot of intial adjustments to make it road worthy
This bike might technically be a bit large for me, but honestly at my current weight I like having a bike that I feel can stand up to my heavy rump and this bike does that well! I had to spend a good portion of my day putting it together, but a large part of that was adjusting everything. It gives you a pretty small list of tools but trust me when I say you will NEED a socket wrench in order to adjust the front derailleur. The nut was so tight from the factory that no other tool was able to loosen it for further adjustments. The derailleurs probably took the most time, followed by the disc-brakes, but now aside from the cross-chaining gears everything else works smoothly and Mongoose doesn't recommend cross-chaining anyway because it puts undue wear on your chain anyway so it's all good in my book. I found I did need to tighten the rear suspension as it had a bit too much sag at first but after that the ride is great. I did replace the seat with my own from a prior bike that I find comfortable but I was very pleased to discover that the pedals were metal just like my last Mongoose bike, so I ended up not needing to install the pedals I purchased separately. I'll keep them since I know I'll probably need them down the road at some point, but it's great that out the gate I didn't have to replace plastic ones and makes me feel even better about my purchase. For anyone who wants to mount their phone on the handlebars I've been using Aduro U-GRIP PLUS Universal Bike, Motorcycle, Handlebar, Roll Bar Mount for Smart Phones (Black) and it's been fantastic. I had to use all three of the padding strips for it but it's held onto my S4 solidly and made navigating around on it so much easier than having to stop and pull it out of my pocket every so often to check my route. The only thing I wish is that there were a good place to mount a water bottle, but since I ride with a backpack that isn't a huge problem for me. I may look into some kind of cup holder for my handlebars but they are getting a bit crowded between my phone holder and Bright Eyes Rechargeable POWERFUL 1200 LUMENS Bike Headlight, but despite that one little thing I'm very pleased with this purchase and would recommend it to my friends. Installing Slime in the tubes was easy peasy too, so I feel more comfortable about the road hazards here in the DFW area. :) ... show more
Reviewed in the United States on August 24, 2015 by Aysha Springston

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