Binary Bicycles titanium Grolar gravel bike with BroadFork frame bag in the Cascade Mountains, Washington.
Binary Bicycles titanium Grolar gravel bike on trail near Aurora, Illinois.

Grolar

The Grolar is our gravel race and adventure bike.  Designed by request from our ambassadors, the Grolar (Grizzly+Polar) is a gravel rolling bear.  Featuring a distinctive head badge on the tapered headtube, and able to run 700cx50 or 650bx2.2 tires, the Grolar is configured to run far and fast in comfort. 

The beautiful titanium frame is designed for rigid gravel forks and can also accept the Lauf Grit gravel suspension fork.  The front triangle is extra large for endurance-sized frame bag capability. Triple bottle mounts on the top and bottom of the down tube and fender mounts allow multiple bikepacking and touring gear options. The Grolar is 2x compatible and has sliding rear dropouts with a post mount disc brake setup.

The rear triangle is designed to have a large amount of mud clearance and efficient yet compliant action.  The Grolar is able to tackle a far wider range of terrain than just gravel roads.  “Pavement, double-track, singletrack, and animal track, this bike will get you there.”  

The Grolar is a design that is more than the sum of its parts!

Standard Frame Features

  • Construction – Light and beautifully crafted titanium
  • Axle Spacing – 12mm x 142mm non-boost; (axle included)
  • Dropouts – Sliding Paragon style; (inserts and titanium hardware included)
  • Headtube – Tapered
  • Bottom Bracket – Threaded 68mm
  • Seatpost – 27.2mm; (31.8mm seat clamp included)
  • Bottle Mounts – 3-boss on top of downtube, 3-boss on bottom of downtube, (sizes L and XL – 2-boss on seat post)
  • Fender mounts
  • 2x front derailleur compatible
  • Brakes – Disc
  • Wheels/Tires – Fits 700c (up to 50mm) tires ~ OR ~ 650b (up to 2.2) tires
  • Forks – 409 to 420mm axle to crown; Lauf gravel suspension fork compatible
  • Versatile design works for gravel, all-road, bikepacking

Geometry numbers in millimeters.  Dimensions are using a 409mm axle to crown rigid fork and 700c x 35mm wheels and tires.
Standover measured from midpoint between seat tube and head tube.

53.5cm

55cm

56cm

57.5cm

58cm

TT Effective Length

535

546

560

573

583

Seat Tube Length

480

492

500

535

540

Seat Tube Angle

74.75

74.3

74.3

74

74

Head Tube Length

130

140

150

160

165

Head Tube Angle

70.5

70.5

70.5

70.5

70.5

BB Drop

70

70

70

70

70

Chainstay Length
Fixed / Sliders

430 / 440

430 / 440

430 / 440

430 / 440

430 / 440

Fork Length

409

409

409

409

409

Fork Offset

47

47

47

47

47

Wheelbase
Fixed / Sliders

1030 / 1040

1035 / 1045

1050 / 1060

1061 / 1071

1071 / 1081

Stack

574

583

593

602

607

Reach

378

379

391

398

406

Standover

785

796

805

819

824

Binary Grolar gravel bike ridden by Josh Kato and Winston.

I’ve ridden a wide range of top-shelf drop-bar MTB bikes in steel, titanium and carbon as well as my fair share of high-end road bikes. My Grolar is the smoothest, most supple rigid frame I’ve been on. I really don’t understand how this bike is so smooth. The sharp sting of washboard surfaces melt away and allow me to increase speed even more. Descents on gravel at 50mph or 20% uphill grades at 5mph, this bike is exceptionally well mannered.  Confidence, stability, speed, durability and smoothness. This bike is grin inducing every time I ride it.

Josh Kato / Washington
Binary Bicycles Grolar in the greens of Aurora, Illinois

I had been looking for a gravel specific bike for awhile now. My previous gravel/do-it-all bike was a Salsa Fargo, and it’s still a great bike, but I knew I needed something a little more nimble and lighter while being strong. Enter the Grolar. This bike destroys gravel. It’s is the perfect harmony of strength while being extremely light. Paired with a Lauf Grit suspension fork, the possibilities are endless.

Scotty D. / Illinois