Save Up to 60% Off New Bikes
Save Up to 60% Off New Bikes

Gravity 27FIVE G1, 27.5 (650B) 27 Speed
Front Suspension Mountain Bikes

Click to see enlarged photo of bikes
Mountain Bikes - MTB - Gravity new 650b and 27.5 Mountain Bikes
Mountain Bikes - MTB - Gravity new 650b and 27.5 Mountain Bikes

NOTE: Orange pic is of the smallest frame size to show shorter rider clearance. It has a very short seat tube so the rear stay and top tube must v down slightly to meet it.
Larger frames like the black pic above have progressively taller top tubes.
Larger frames cannot be made with same clearance as the smallest size for mtb riding. All traditional MTB frame styles are like this for these reasons
Click For :
Sizing Guide | Specs
| Customer Reviews | Geometry

Suntour MLO Suspension Fork, Shimano
27 Speed 27.5 (650B) Mountain Bikes

2018 Gravity G27FIVE G1
ONLY $288

(List $995)
Ships Signature Required

27.5" SUNTOUR MLO Fork
Tektro Disc Brakes
+ 27.5 inch Tires/Wheels

Save up to 60% Off List Prices
Buy Factory Direct from Bikesdirect

Compare to $995 27.5 (650B) Mountain Bikes

Use menus below to select size/color
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FREE Ship 48
Click for Sizing Chart
FREE Ship 48
Click for Sizing Chart
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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Pay with your US Issued Visa, MC, Disc, AMEX Cards. You do NOT need to use Paypal
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 BaseCamp Front Suspension Mountain Bikes. This aluminum MTB frame has some of the best quality and design for the money we have seen. Customers who own BaseCamp's send friends and family to buy these excellent bikes all the time.

Here is what just a few Customers say:

Bill B.
"Impressed…I bought a Gravity Base camp...after searching all the major brands...has comparable components and I have to say a better frame than the Specialized Hardrock I just bought for my girlfriend…"

“…I have a Gravity BaseCamp...NO complaints whatsoever.....I took it into the shop today after a nice 14 mile ride for some adjusting and tuning, I missed it before I even left the shop. ...”

“..OOOOOOHHHHHHH. I have one of these. I love this bike. No other way to put it. ”

“Great price and quick shipment. Awesome communication.”

Scott M.
“Extraordinary bike for price.”


"... Excellent bike, great price, super fast shipping."

"..Best deal on a (size small) mountain bike-period. High Quality and BETTER than expected."

Buy Your BaseCamp now with shipping included to 48 states.


Join the 27.5 (650B) 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 27 Speed drivetrain equipped 27.5 (650B) bike with powerful Disc Brakes and 27.5" SUSPENSION FORK, SUNTOUR SF13-XCT-MLO-DS.

Why 27.5 (650B)?
You are lighter and more nimble than a 29er and roll over obstacles better than a 26er. Fits smaller riders than the 29ers too. The 27.5 mountain bikes will have the best of both worlds. The agility of the 26" wheel and the big wheel experience of the 29er mountain bikes.
26vs27.5vs29er Wheels

Specified with competition-ready components and has geometry based on careful research and trail-testing. Please compare this bike directly against any other manufacturers $900+ 27.5 (650B) mountain bike on the market. Their bikes are likely heavier or not as well equipped.

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

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

Gravity has really dialed in a race-proven geometry into this phenomenal ride. The handling is very responsive and yet stable. Singletrack and switchbacks are all handled with ease. Slow speed and high speed, technical and flat-out hammering, you will go faster because this bike is so capable. If you love the ride of the 29er bikes like the Gary Fisher Marlin, Cobia or Mamba; you will love the ride of this Gravity 27FIVE G1 bike as it will be more nimble and roll about as well.

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.

These 2018's are shipping NOW. Get yours before they are all gone

Gravity 27Five G1/G2 Sizing Guide
13" - fits most 5'0" to 5'5" (standover 640mm)
15" - fits most 5'5" to 5'9" (standover 660mm)
17" - fits most 5'10 to 6'0" (standover 705mm)
19" - fits most 6'0" to 6'2" (standover 750mm)
21" - fits most 6'2 to 6'4" (standover 785mm)

Standover measured on axis with Crank/BottomBracket. Top tubes slope upwards to the Headtube so please allow for that.
Between sizes? If you size up, you may touch when straddling the bike. Sizing is a personal preference and the choice is ultimately up to the Customer.


Frame ALLOY 6061 Aluminum with TrailTested Design. D-Section, Hydroformed Downtube with reinforced Gusset, water bottle mount
Crankset SUNTOUR 22Tx32Tx44T(for 27-SP)x175mm
Bottom Bracket SUNTOUR 113 CARTRIDGE
Pedals Mountain Platform
Front Derailleur SHIMANO ALIVIO
Rear Derailleur SHIMANO DEORE
Cassette SRAM PG-11-32T-9 SILVER
Hubs Gravity by Formula Sealed Ball Bearing Disc with QR Axles
Spokes Stainless steel
Tires WTB Wolverine, 27.5 (650b) x2.2
Brakes Tektro Novela Disc Brake  160mm Rotor front and rear
Brake Levers TEKTRO RS-360A ALLOY BLACK, Brake Levers
Headset CaneCreek VP-A42E Sealed Bearing threadless 1 1/8 in
Handlebar Black Finish Aluminum 6061 T6, 660MM (31.8mm)
Stem Black Finish Aluminum threadless
EXT:90MM(15.5"~17.5")/105MM(19"~21")x10 DEGREES, ALLOY BLACK
Tape/Grip WTB DualCompound
Saddle WTB SpeedV
Seat Post Black Finish Aluminum Mountain 27.2mm x 400mm
(insert min 2 inches 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 is $399  Compare to $900 Trek, Jamis, Giant and Gary Fisher 27.5 (650B) Mountain bikes

Bikes come up to 90 percent assembled.  
We suggest you take it to your local bike shop for final assembly & safety checks.