ALL BIKES FREE SHIP 48
Gravity FSX 27.5 HD Boost
with Massive 27.5x2.8" Tires, 27.5PLUS (MidFat) 2X8 Speed
Full Suspension Mountain Bikes
Click to see enlarged photo


With Advanced ThruAxle Lockout Forks and Powerful Shimano Hydralic Disc Brakes, Normally $350 Upgrade

Click Links For>> Specs | Customer Reviews | Sizing Chart | Geometry

Lockout Suspension Fork, Full Shimano
2X8 Speed 27.5PLUS (MidFat) Full Suspension Mountain Bikes

2025 Gravity
FSX 27.5 HD Boost
SURPRISE SALE $524
Will Be $799 Soon (List $1999)
Ships Signature Required

Massive 27.5PLUS X 2.8 Tires
Advanced BOOST Hub Spacing
THRUAXLE 27.5" LockOut Forks
Adjustable Rear Suspension
Shimano Hydraulic Disc Brakes

Save up to 60% Off List Prices
Buy Factory Direct from Bikesdirect
Compare to $1700 Giant 27.5, (650B) Full Suspension Mountain Bikes

Use pull-down above to select size/color. (May Show Sold Out Sizes) Cart Doesn't Reserve Items. Select Size, Then Checkout. Don't See Size/s? Click> Get Restock Emails

We accept Visa/MC/Disc/Amex. PayPal is optional

Price Includes Ground Shipping
to 48 United States
(5 to 7 Day Delivery) (AK/PR/HI addtl charges)
(Email us for Delivery to PO Box/APO/FPO)

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Bikes come up to 90 percent assembled. Assembly is Easy. An 11 year old customer assembled their own bike. Check out his video: CLICK HERE.How much Assembly? CLICK HERE for sample assembly instructions and videos CLICK HERE for a special price on the full Video DVD/CD and Folding Mini ToolKit
If you don't feel confident working on your bike, we suggest you take it to a local bike shop for final assembly & safety checks.

We have sold thousands of Gravity FSX Full Suspension Mountain Bikes. This full suspension frame has some of the best quality and design for the money we have seen. Customers who own FSX's send friends and family to buy these excellent bikes all the time.

Here is what just a few Customers say:

New Mexico. Joey V.
“…on a Mountain trail with a friend who is highly experienced with MTB and stayed toe to toe with them...took on some tough rocks and some tough bumps without any malfunctions. I Am falling in love with my bike and Im super happy with my buy...I give this bike a high score. Not only does it perform on the Mountain but it gets me to and from work....get one hell of a deal by buying this nice piece of equipment . Very pleased...”

Ethan
“..this bike is amazing...out lasted our "top of the line" brand name.”

Dee
“Overall, great bike....held up well through small jumps and steep DH.”

David
“Assembly was easy and straight forward...this Gravity FSX Mountain Bike is several steps above any bike I have purchased to this date. I have been to bike shops that sell top end mountain bike for several hundreds of dollars more that have big name brands on them that do not compare....a great bike for a great price and highly recommend it for the beginner to intermediate riders...a very satisfied customer.”

John H.
"... this bike is all me!I can fly down hill on this bike and stop on a dime, or veer hard with it…Going up hill, if you got the leg power and the lungs it'll do it....get a lot of compliments on the bike's sleek look too."

Tempe, AZ
"..a great bike so far. Looks dope, and rides good! Also, super quiet....Personally, I'd give it a 9/10."

Buy Your FSX now with shipping included to 48 states.

Unheard of Price for This Level Of Tech. Get 27.5 PLUS FULL Suspension w/Lockout Forks
If you have ridden one you know why you want one. If you have ever wanted to try one, this is the best deal on a 2X8 Speed Shimano drive 27PLUS Full Suspension bike with BOOST Hub Spacing.

Join the 27.5PLUS (MidFat) FULL SUSPENSION Evolution
If you have ridden one you know why you want one. If you have ever wanted to try one, this is the best deal on a 2X8 Speed Shimano drivetrain equipped 27.5PLUS (MidFat) bike with powerful Hydraulic Disc Brakes and FULL SUSPENSION with 27.5PLUS" SUSPENSION FORK, SUNTOUR XCM Boost Spacing with Lockout

+ Advanced REAR + Advanced SR 27.5 Fork with FRONT LOCKOUT for absolute control when you need it
NOTE: This is a brand new factory direct model with the newest features and not yet on the Gravity USA site

Why 27.5PLUS (MidFat)?
You are lighter and more nimble than a normal fat bike and roll over obstacles better most any other tire size. Fits smaller riders than the 29ers too. The 27.5 PLUS / Mid Fat mountain bikes will have the best of all worlds. The agility of the 26" wheel and the big wheel experience of the 29er mountain bikes with the cushion, super grip and flotation of a fat bike.

COMPETITION READY
Specified with competition-ready components and has geometry based on careful research and trail-testing. Please compare this bike directly against any other manufacturers $1700+ 27.5PLUS (MidFat) Full Suspension bikes on the market. Their bikes are likely heavier or not as well equipped.

Extremely capable
Hydraulic Disc Brakes are rated by magazines as the best - Way better than v-brake systems and more powerful.

LIGHT WEIGHT
This bike is lighter than most any other bike in its price range AND has much higher level parts.

SWEET HANDLING
uses an Advanced aluminum frame that features CantiBeam SinglePivot Technology
+ REAR adjustable coil-over cartridge
+ Advanced Suspension Fork with FRONT LOCKOUT

FSX Full Suspension mountain bikes feature Advanced Aluminum frames with a Hydroformed tubes, advanced CantiBeam single-pivot rear suspension and trail-ready geometry.

How Can We Sell At This Price?
We sell Factory Direct so you pay a price close to what a local dealer would pay at wholesale cost for a comparably equipped bike. Thus, you get a better equipped bike for hundreds less - often saving up to 60% off List prices. The only thing you have to do is a bit of tuning and assembly.

Get yours before they are all gone

FSX 275PLUS Sizing Guide:

15inSM | Standover = 28.5" | fits* 5'6" to 5'9"
17inSM/Med | Standover = 29.5" | fits* 5'10" to 6'
19in = Medium/Lr | Standover = 30.25" | fits* 6'1" to 6'3"
21in = Large/XLrg | Standover = 31.5" | fits* 6'2" to 6'5"
(*approx. sizing - your final choice is up to personal preferences.)

Frame	New 27.5 Design, Oversized Bearing CantiBeam Link SinglePivot, Custom Formed TIG Welded 6061 Aluminum Front Triangle with Hydroformed tubes. Rear Triangle with replaceable rear derailleur hanger
Fork / Rear Suspension	27.5"SUSPENSION FORK, SUNTOUR SF19-XCM32-BOOST LO DS 15AH2-110CTS ALLOY BLACK CROWN / Rear KINDSHOCK KS-260 with adjustable preload
Crankset	SHIMANO FC-M315-2 22/36T BKx175MM ALLOY BLACK CRANK
Bottom Bracket	VP-BC73 CARTRIDGE
Pedals	Mountain Platform
Front Derailleur	SHIMANO TOP PULL
Rear Derailleur	SHIMANO ALTUS BLACK CAGE
Shifters	SHIMANO TriggerShift 16-SP BLACK
Cassette	SHIMANO HG 11-34T-8Speed
Chain	KMC STEEL GY/BR for 8 speed
Hubs	F/HUB : FORMULA ALLOY BLACK FOR THRU AXLE W/O Q.R. R/HUB : ALLOY BLACK W/QR.
Spokes	Stainless steel
Rims	27.5x32H DOUBLE WALL, ALLOY BLACK
Tires	27.5x2.8 BIG DADDY A/V,BLACK
Brakes	SHIMANO HYDRAULIC DISC BRAKE W/ 60MM ROTOR
Brake Levers	SHIMANO HYDRAULIC for disc
Headset	VP-A71 BLACK W/M-1D ALLOY BLACK CAP
Handlebar	MTB- T W:720MMxR:20MMx6 DEGREES, ALLOY SAND BLACK
Stem	Black Finish Aluminum threadless EXT:90MMx10 DEGREES, ALLOY SAND BLACK
Tape/Grip	Black Kraton
Saddle	MTB padded black
Seat Post	Black Finish Aluminum Mountain 400MM, ALLOY BLACK (insert min 2ines below lowest top tube weld / maintain clamp collar tightness)
Seat Post Clamp	Super Light Alloy with Quick Release
Sizes	As shown
Colors	see pull down menus
Our low price Saves You Hundreds! Compare to $1300 Trek, Jamis, Giant and Gary Fisher 27.5PLUS (MidFat) Mountain bikes Bikes come up to 90 percent assembled. We suggest you take it to your local bike shop for final assembly & safety checks.

ALL BIKES FREE SHIP 48 Gravity FSX 27.5 HD Boost with Massive 27.5x2.8" Tires, 27.5PLUS (MidFat) 2X8 Speed Full Suspension Mountain Bikes Click to see enlarged photo

ALL BIKES FREE SHIP 48
Gravity FSX 27.5 HD Boost
with Massive 27.5x2.8" Tires, 27.5PLUS (MidFat) 2X8 Speed
Full Suspension Mountain Bikes
Click to see enlarged photo