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GRAVITY FSX 1.0 Dual Full Suspension Mountain Bike with Disc Brakes Aluminum Frame

  • Based on 406 reviews
Condition: New
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$449.95 Why this price?

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Availability: Only 5 left in stock, order soon!
Fulfilled by Sun Cycle Warehouse

Arrives Friday, Apr 5
Order within 15 hours and 14 minutes
Available payment plans shown during checkout

Color: Black


Size: 21"


Features

  • Disc Brakes Front and Rear, Strong and Durable Aluminum Frames
  • Easy to Use Shim Shifters
  • Adjustable Suspension - Front and Rear!
  • Strong and Light Double Wall Rims, Quick Release Wheels - Front and Rear
  • Requires Assembly and Tuning Before Riding!
  • Signature required at delivery

Bike Type: Mountain Bike


Age Range (Description): Adult


Brand: GRAVITY


Number of Speeds: 24


Color: Black


Wheel Size: 26 Inches


Frame Material: Aluminum


Suspension Type: Dual


Special Feature: Dual Suspension, Aluminum Frame, mountain bike


Included Components: Bicycle Pump


Bike Type: ‎Mountain Bike


Age Range (Description): ‎Adult


Brand: ‎GRAVITY


Number of Speeds: ‎24


Color: ‎Black


Wheel Size: ‎26 Inches


Frame Material: ‎Aluminum


Suspension Type: ‎Dual


Special Feature: ‎Dual Suspension, Aluminum Frame, mountain bike


Included Components: ‎Bicycle Pump


Size: ‎21"


Brake Style: ‎Disc


Specific Uses For Product: ‎Trail


Item Weight: ‎15.9 Kilograms


Style: ‎Dual Suspension


Model Name: ‎FSX 1.0


Year: ‎2023


Maximum Weight Recommendation: ‎250 Pounds


Is Autographed: ‎No


Item Package Dimensions L x W x H: ‎52 x 31 x 8 inches


Package Weight: ‎35 Pounds


Item Dimensions LxWxH: ‎52 x 8 x 31 inches


Brand Name: ‎GRAVITY


Warranty Description: ‎Limited Lifetime by GravityBikes.com


Number of Items: ‎1


Manufacturer: ‎GRAVITY


Part Number: ‎FSX 1.0


Date First Available: October 1, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Apr 5

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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Top Amazon Reviews


  • Hard to put together, but seems like a decent bike
Color: Yellow Size: 19"
Edit: the extra j-shaped part is a sacrificial part that is meant to be destroyed in case of an accident to protect the rest of the bike, which is why they provided an extra one. Original review: The instructions that come with the bike are total garbage. It pretty much just tells you to take the bike to a shop, go slow, ask questions, use grease (I didn't), and use muscle (what?). There are no step by step instructions and no tools provided. I'm pretty handy and did eventually get it working well. Getting the handlebars, seat, front disk brakes, and front wheel "on" is pretty self explanatory, however pretty much nothing was lined up correctly (even stuff installed at the factory). If you don't have that front brake lined up perfectly, it sounds aweful when riding and it's pretty finicky about placement. I also had to adjust the back brake position. The derailleurs needed to be tuned (thanks internet) so that it would shift properly and quietly, but it's pretty quiet now. In the end, I still have an extra piece. It's a J-shaped piece of metal with some holes in it. There's already an identical piece like this installed on the back of the bike and it does not fit on the front. The bike seems to work fine without it, so maybe it's a random spare? It seems like a sturdy part that wouldn't likely ever break, so I'm not sure why a spare would be needed when they don't provide spares of anything else. Makes me worried something important is missing and the bike is going to fall apart on me, but it seems to work ok. (Edit: after some research, this part is called a derailleur hanger which is designed to be damaged in an accident to save other parts, hence the spare). Again, actual assembly instructions would be very helpful. A signature was required so USPS double-rang my doorbell and woke my toddler from his nap, which is annoying since this is a pretty cheap bike and I've had much more expensive things delivered with no signature required. I think my least favorite thing about the bike is that I don't see how you could ever attach a kick stand to it with the way the back is designed. So I'll have to lay it down or lean it against something. Overall, this seems like a good bike for the money. Putting it together was a pain, and honestly if I could rewind time, I would just spend a little more and go to a bike shop or even a sporting goods store to get a bike that's already put together and tuned properly. My 2 year-old kid was going nuts while I was putting it together and couldn't wait to go for a ride with dad, and kept trying to "help," which was cute, but...not actually helpful. I'd rather just have pulled a new bike out of my trunk, thrown his seat and handle bar attachments on and taken him for a ride. If you're on a budget, though, and don't mind tinkering and watching a YouTube video to compensate for the lack of provided instructions, and don't want a kick stand, this is a decent purchase. ... show more
Reviewed in the United States on June 3, 2023 by Amazons Customers

  • It's a nice bike.
Color: Yellow Size: 19"
I do like this bike but be advised it does require some tuning as the description says. I had a difficult time getting the front derailleur to shift the three gears straight as there are five adjustment points. Didn't bother me much cuz I'm a tinkerer but for someone not so mechanically inclined this could be quite the headache. I took a star away because I had to buy a new riser head and peddles. The handle bars are way too low and stretched out to the front to point of I'm leaning way forward to reach them. The peddles are just junk. I don't trust my life with them just cruising down the road less yet on a trail. ... show more
Reviewed in the United States on October 11, 2023 by Derek Derek

  • Light weight
Color: Black Size: 19"
Loved the duel suspension
Reviewed in the United States on November 4, 2023 by William Morton

  • Review changed ... chain broke. 21" Frame great for a 6'-6" 285 pound man.
Below you see my original 5 star review. Unfortunately, the chain broke on my third ride. I am not sure about recommending this bike for a large man. It's just the chain, I should have had the derailer professionally adjusted maybe. I'll still give it 4 stars. I ordered this bike with apprehension, being a bit larger than the average bear. I'm 6'-6", so I thought I would take a chance. The parts are top quality for a bike this price(under $400), and the front/rear disk brakes AND front/rear suspension are unheard of at under $400, at least everywhere I looked. I got the box, and took the bike out of the box. I only had to attach the handlebars to the frame, attach the front wheel, and the pedals. I discovered I also had to attach a front brake line. Then I put the seat on and tightened it up. Easy enough to do everything with a 5mm hex wrench. Everything looked great! Then I got on the bike and took off. Pretty much a disaster. I'm glad I survived. I hadn't really ridden a mountain bike for several years, and forgot there's a little bit more work needed to do after the bike is "assembled". First thing, this bike is plenty big for me, and I realized I had the bike seat about 5 inches higher than I should have. That made things scary. I'm just used to having to put the seat high. Second thing, with my large frame I thought I was going to have to replace the front forks. Way too soft. I went and got myself a pliers first and tightened them up as tight as they would possibly go. It turns out they are perfect now!! No need for replacements. Third, air in the tires seems to be a necessary thing. I filled them from 3 psi up to 55 psi. They are working great. Fourth, the front disk brake caliper needed to be moved a bit to let the wheel spin freely, and both front and rear brakes needed to be tightened up a bunch! After these adjustments the bike works great for my 6'-6" body. No bike shop or replacements needed. I love this bike. Feel free to contact me for some help with any of the above mentioned adjustments. Maybe I could send you a pic or a video of how to do them. I would love to help if I can. davidjimm at netzero dot com ... show more
Reviewed in the United States on May 7, 2019 by David Imm

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