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Gravity Gravel Zilla GRX
Advanced Carbon Gravel Bike, Shimano GRX600/800 2x11, Hydraulic Disc Brakes
SUPER SALE $1699
$4999
FAST FREE Delivery 48 USA* | 30 Day Money-Back Guarantee*
  • Shimano GRX600/800 2x11
  • Powerful Hydraulic Disc Brakes
  • Advanced Carbon Gravel Design
  • FSA Omega Gravel Crank
  • WTB TCS Tubeless-Compat Rims
  • 700x50c Maxxis Tires

Gravity Gravel Zilla GRX Size Chart*
XXS (46cm) - 4'11" to 5'1"
XS (49cm) - 5'2" to 5'4"
S (52cm) - 5'4" to 5'7"
M (54cm) - 5'7" to 5'10"
L (56cm) - 5'10" to 6'0"
XL (58cm) - 6'0" to 6'2"
XXL (61cm) - 6'2" to 6'5"
*Approx. sizing, your final choice is up to personal preference. Between sizes? Size down for more crotch clearance or shorter reach.

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Bike Assembly is easy, most are up to 90% assembled.

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If you don't feel confident working on it, we suggest taking it to a local bike shop for final assembly / safety checks.
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Save Up to 60% Off Gravity Gravel Zilla GRX Advanced Carbon Gravel Bikes with Shimano GRX Hydraulic Disc Brakes

Shimano GRX600/800 series performance: Gravity Gravel Zilla GRX is built for riders who want a serious carbon gravel/adventure bike with Shimano GRX 2x11 shifting, GRX hydraulic disc braking, thru-axles front and rear, and wide 700x50c Maxxis Rambler tires.

Advanced carbon value: The advanced carbon frame and matching carbon gravel fork keep the ride light, responsive and comfortable on pavement, chipseal, gravel, rough roads and mixed-surface rides.

ON SALE for $1699 for Carbon Design: Other brands have lower level Aluminum at $1599-$1899

Compare to other GRX Hydraulic disc brake bikes with carbon frame $2299 to $4999+

This Zilla GRX Carbon gravel bike Includes WTB TCS tubeless-compatible wheels, FSA Omega 46/30 gravel crank, rear rack mounts, Trifecta fork braze-ons, and wide tire clearance up to 700x50c / 29x2 inch with free 48-state delivery.

TRUSTED SELLER SINCE 1997
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Over A Million Happy Customers

Gravity Gravel Zilla GRX carbon gravel bike: an advanced carbon gravel/adventure bike made for fast mixed-surface riding, gravel roads, rough pavement, chipseal and long endurance rides.

Shimano GRX600/800 drivetrain: GRX RX600 2x11 shifters, GRX RX810 front and rear derailleurs, 11-34T 11-speed cassette and FSA Omega 46/30T gravel-specific crank give wide, useful gearing for pavement and gravel.

Hydraulic disc control: Shimano GRX hydraulic disc brakes with RX400 calipers and 160mm rotors deliver confident braking through rain, dirt, descents and variable road surfaces.

Wide tire carbon platform: the carbon frame and carbon gravel fork use thru-axles, rear rack mounts and Trifecta fork braze-ons, with clearance up to 700x50c / 29x2 inch tires.

ModelGravity
Gravel Zilla GRX
Canyon
Grizl 6
Specialized
Diverge 3 Alloy
Price$1699 $1899$1599
Weight*22.7 lbs23.99 lbs23.1 lbs
Carbon Frame+Fork YES NO (Aluminum frame)NO (Aluminum frame)
Note *Weights can vary +/-5% due to size/production variables
Frame
Gravity ADVANCED UDCARBON 800K / PF BB / tapered steerer / 27.2mm seatpost / flat mount disc, dropout set 12x142mm convertible thru-axle / D042 hanger, blast anodized black.
Fork
Gravity UD-Carbon gravel fork, carbon tapered steerer 1.5" to 1-1/8", 57mm crown, straight carbon blade, flat disc mount, eyelet, 48mm offset, Trifecta braze-ons, max tire 700x50c / 29x2".
Bar / Stem / Saddle / Seatpost
Ritchey Comp Evocurve alloy 6061 double-butted handlebar, center 31.8mm, 400/420/440mm for 49-52 / 54 / 56-58cm, drop/reach 128/83mm, 2 degree flare. Ritchey Comp 4-Axis-44 stem, 84/6D alloy 3D forged 6061, 70/80/90mm for 49-52 / 54 / 56-58cm. Black Gel EVA synthetic cork tape. WTB or Velo saddle due to supply chain, cannot choose. Ritchey Comp 2B 6061 T-6 forged seatpost, 27.2 x 350mm. (Insert post min 2 inches below lowest top tube weld / maintain clamp collar tightness)
Rear Shock
n/a (does not apply)
Shifters / Derailleurs
Front Derailleur: Shimano FD-RX810 GRX, 11-speed, down-swing/down-pull, brazed-on type. Rear Derailleur: Shimano RD-RX810 GRX, 11-speed, Shadow Plus. Shifters: Shimano ST-RX600 GRX 2x11-speed shift/brake levers.
Chain / Gears
Cassette/Freewheel: Shimano CS-HG 11-speed, 11-13-15-17-19-21-23-25-27-30-34T. Chain: 11-speed super narrow chain, 1/2 x 11/128".
Cranks / Bottom Bracket
Updated to FSA Omega gravel-specific crankset, 46/30T, due to supply chain updates. Bottom Bracket: Shimano BB-RS500-PB press-fit type for road.
Brakes
Shimano GRX hydraulic disc brakes, RX600/BR-RX400, 160mm rotor, resin pad. Shimano SM-RT54 160mm rotor with lock ring.
Wheels / Tires
WTB Tubeless Compatible wheels. Rims: WTB ST i23 TCS 2.0 29"/700c, 32h, disc only, black anodized, Presta valve drilled, pinned joint. Spokes: 14G stainless, 64 pcs, black with 14mm brass nipples. Front hub: JTech D791SB-CL-12 center-lock disc, 12x100 thru-axle. Rear hub: JTech D162SB-SL-CL-X12-S35-11S center-lock disc, 12x142 thru-axle, Shimano 8/9/10/11-speed compatible. Tires: Maxxis Rambler 700x50c, 120tpi, EXO/TR, foldable.
Motor/Battery/Controller
n/a (does not apply)
Weight / Widest Tire
Approx. 22.7 lbs / Max tire width approx. 700x50c or 29x2", not guaranteed due to tire manufacturer variance.
Extras
Wellgo clipless 2-bolt alloy road pedals with 9/16" CNC CrMo axle. Rear rack mounts and Trifecta fork braze-ons.
Size 46 49 52 54 56 58 61
Head Tube Angle 70.5 70.5 71 71.5 72 72 72
Seat Tube Angle 74.5 74.5 74 73 73 72.5 72.5
Head Tube Length (mm) 110 120 140 150 170 190 210
Effective Top Tube (mm) 510 525 535 545 560 575 595
Chainstay (mm) 435 435 435 435 435 435 435
Standover (inch) 29.4 30.2 31.1 31.7 32.5 33.1 34.1

Gravity Real Customer Reviews

A. J. "..love this bike and it rides real well… original shifters worked well and the drops were nice...around 500 miles on this bike and it (rode) pretty good for the money. Why spend thousands...

T. S. "...most of the (wide tire road) options...available from the big manufacturers were beyond what I wanted to spend….so I turned to the internets(!) and discovered bikesdirect.com.…came about 90% ready...put the front wheel and handlebars on, I had to air up the tires, put the pedals on, and adjust some things (brakes, seat, shifters, derailers). But bikes are easy...I was up and riding within 30 minutes….

Since this bike is so well rounded, I can run errands with it during the week, commute to work on it, and take off some unnecessary bits for a long ride on the weekend. It’s almost like fitness disguised as fun..."

P.H. "...The (other brand) CX bike is probably the cheapest fat-tire road bike, and it was still $250 MORE than the Gravity..…$800 would get me a (other brand) Tourer with Sora 10spd, but that bike weighs close to 30lbs."

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