Name: OBED Boundary Gravel Bike
Brand: OBED Bikes
SKU: BOUNDARY
Price: 1809.0 USD
Availability: InStock

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OBED Boundary Gravel Bike

See the OBED Boundary Gravel Bike overview

Component requests

Note any additional requests here

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Your build highlights

Built For You

Customize your bike with your preferred drivetrain and components. Create a custom color scheme by choosing your paint and decals.

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Expert Help

Have questions? Our team of experts is ready and waiting to help. Simply call, email, or chat with us and get the answers you seek.

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Easy Financing

Turn your dream bike into reality with easy financing, quick approvals, and low monthly payments that fit your budget.

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Explore the details

The original OBED gravel bike, with unbeatable value and customization options to build your foundation for exploration. With a tough but lightweight carbon frame, clearance for modern 50mm gravel tires, and endurance geometry, the Boundary is the most reliable partner for your next adventure.

Frame Material: Carbon Fiber

Max Tire Size: 700c x 50mm

Headset Upper: IS42

Headset Lower: IS52

Crown Race: 40mm

Front Spacing: 12x100mm

Front Axle Specs: 12x1.5x120mm

Rear Spacing: 12x142mm

Rear Axle Specs: 12x1.5x172mm

Seatpost Diameter: 27.2mm

Seat Collar Diameter: 31.8mm

BB Standard: BB86

Max Chainring Size: 52/36

Rotor Max Size (Front): 180mm

Rotor Max Size (Rear): 160mm

Front Derailleur Mount: Braze-on

Derailleur Hanger: Proprietary

Water Bottle Mounts: Yes

Fender Mounts: Yes

Rack Mounts: Yes

Three-Pack Mounts: Yes

Toptube Bag Mounts: Yes

Downtube Accessory Mount: Yes

Fork Offset: 50mm

Rigid Fork Length: 395mm

Bar, Stem + Crank Specs

Size XS - Bar: 42cm; Stem: 90mm; Crank: 170

Size S - Bar: 42cm; Stem: 90mm; Crank: 170

Size M - Bar: 44cm; Stem: 100mm; Crank: 170

Size L – Bar 44cm; Stem 110; Crank 172.5

Size XL - Bar: 46cm; Stem: 110mm; Crank: 175

Select a build kit:

Groupset	Shimano GRX 820 1X 12 Spd
Headset	Cane Creek
Stem	FSA Energy
Handlebar	FSA A-Wing AGX Alloy
Seatpost	Select in Builder
Saddle	WTB Volt Cromoly
Shifters	Shimano GRX RX820 12 spd
Rotors	Shimano CL800 160mm
Rear derailleur	Shimano GRX RX822 12 spd
Crankset	Shimano GRX RX820 1x 40T
Cassette	Shimano XT M8100 10-51 12 spd
Chain	Shimano M8100 12 spd
Bottom bracket	BB86 Press-Fit
Tires	Select in Builder
Brakeset	Shimano GRX RX820 Hydraulic
Wheelset	Select in Builder
Fork	Select in Builder

Groupset	Shimano GRX 820 2X 12 Spd
Headset	Cane Creek
Stem	FSA Energy
Handlebar	FSA A-Wing AGX Alloy
Seatpost	Select in Builder
Saddle	WTB Volt Cromoly
Shifters	Shimano GRX RX820 12 spd
Rotors	Shimano CL800 160mm
Front derailleur	Shimano GRX RX820
Rear derailleur	Shimano GRX RX820 12 Spd
Crankset	Shimano GRX RX820 48/31
Cassette	Shimano Ultegra R8100 11-34T 12 spd
Chain	Shimano M8100 12 spd
Bottom bracket	BB86 Press-Fit
Tires	Select in Builder
Brakeset	Shimano GRX RX820 Hydraulic
Wheelset	Select in Builder
Fork	Select in Builder

Groupset	Shimano GRX 827 Di2 1x 12 Spd
Headset	FSA 55R 1.5" ACR
Stem	FSA SMR
Handlebar	Select in Builder
Seatpost	Select in Builder
Saddle	Select in Builder
Shifters	Shimano GRX RX825 Di2 12 spd
Rotors	Shimano CL800 160mm
Front derailleur	N/A
Rear derailleur	Shimano GRX RX827 12 spd
Crankset	Shimano GRX RX820 1x 40T
Cassette	Shimano XT M8200 10-51 12 spd
Chain	Shimano M8100 12 spd
Bottom bracket	T47 Outboard
Tires	Select in Builder
Brakeset	Shimano GRX RX820 Hydraulic
Wheelset	Select in Builder
Fork	Select in Builder

Groupset	Shimano GRX 825 Di2 12 Spd
Headset	Cane Creek
Stem	FSA Energy
Handlebar	FSA A-Wing AGX Alloy
Seatpost	Select in Builder
Saddle	WTB Volt Cromoly
Shifters	Shimano GRX RX825 Di2 12 spd
Rotors	Shimano CL800 160mm
Front derailleur	Shimano GRX RX825 Di2
Rear derailleur	Shimano GRX RX825 Di2
Crankset	Shimano GRX RX820 48/31
Cassette	Shimano Ultegra R8100 11-34T 12 spd
Chain	Shimano M8100 12 spd
Bottom bracket	BB86 Press-Fit
Tires	Select in Builder
Brakeset	Shimano GRX RX820 Hydraulic
Wheelset	Select in Builder
Fork	Select in Builder

	XS	S	M	L	XL
Top Tube Length	52cm	53.5cm	55cm	56.5cm	58cm
Head Tube Length	120mm	140mm	150mm	170mm	190mm
Seat Tube Angle	74.5˚	74.0˚	73.0˚	73.0˚	73.0˚
Head Tube Angle	70.5˚	71.0˚	71.5˚	72.0˚	72.0˚
BB Drop	67mm	67mm	67mm	67mm	67mm
Chainstay Length	435mm	435mm	435mm	435mm	435mm
Wheelbase	1020mm	1021mm	1026mm	1037mm	1052mm
Front Center	594mm	595mm	600mm	611mm	626mm
Standover Height	75.9cm	78.6cm	80.3cm	82.3cm	84.3cm
Fork axle to crown	395mm	395mm	395mm	395mm	395mm
Fork rake	50mm	50mm	50mm	50mm	50mm
Seat Tube Length	490mm	520mm	540mm	560mm	580mm
Reach	371mm	375mm	376mm	385mm	394mm
Stack	537mm	557mm	568mm	590mm	609mm

155cm 61 - 168cm 66

163cm 64 - 175cm 69

170cm 67 - 180cm 71

178cm 70 - 188cm 74

185cm 73 - 196cm 77

We can install a gravel suspension fork as a custom component request. The Boundary, however, does not use suspension-corrected geometry, so be aware that a suspension fork will lift the front end, altering the geometry and handling.

Yes! The Boundary has built-in rear rack mounts. Rigid forks come with additional gear mounts on the fork legs.

The Boundary comes with tubeless-ready wheels and tires and is shipped set up tubeless with sealant from the factory.

The Boundary fits tires up to 700c x 50mm wide or 650b x 53mm wide.

The Boundary is our most versatile entry-level gravel bike, built for riders who want to explore gravel roads without breaking the bank. It uses a purpose-built frame with robust yet compliant carbon lay-up, and geometry tuned for comfort, making it perfect for long-distance adventures and general gravel riding.

Yes! The Boundary is a do-it-all bike and will be competent on the road. If you choose to install road tires on your Boundary, we recommend using tires at least 700c x 32mm wide to reduce the effect smaller tires will have on the geometry.

Yes! The Boundary can be used as a gravel racer, and it has been successfully raced at many of the world's biggest gravel events. While it’s not as light or stiff as our race-focused GVR, the Boundary will provide nearly the same performance for less.

If you're on the border of two sizes, the right size may depend on certain body measurements and your riding style. Feel free to contact us at any time regarding sizing questions - our product specialists are experienced with finding riders the right fit by cross-referencing your information with our fit database.

If you're not transferring measurements from a similar bike, to get completely "dialed in" for maximum performance, we recommend you see a reputable professional bike fitter that can fit you to your new bike.

Custom requests can be submitted through the “Component Requests” box in our bike builder, or you can contact us at any time to inquire about custom requests. A member of our team will reach out for additional information. All custom requests are subject to availability, and additional charges may apply.

Watch the video below:

To mount your OBED bike to a direct drive stationary trainer, follow these steps:

1. Shift into the bike's hardest gear

2. Remove the rear thru axle

3. Remove the rear wheel

4. Place the frame onto the direct drive trainer, ensuring the chain falls onto the cassette and the rear axle dropouts are aligned with the trainer hub end caps.

5. Reinstall the rear thru-axle and tighten.

Notes:

We recommend shifting into the hardest gear before removing the rear wheel to make it easier to remove the rear wheel and position your bike for installation on the trainer.

Mounting a bike to a direct drive trainer is very similar to installing a rear wheel. You may need to swing the rear derailleur back to direct the chain onto the cassette cogs. If you have a rear derailleur with an adjustable clutch, turn the clutch off to be able to articulate the rear derailleur.

Ensure the rear axle dropouts of the frame are aligned with the endcaps on the trainer, and that the chain is properly routed before reinstalling the rear axle and using your direct drive to prevent damage.

Ensure the rear cassette on your direct drive trainer is compatible with your bike's drivetrain to prevent damage. (E.g., you must use a 12-speed Shimano cassette with a 12-speed Shimano drivetrain and a 12-speed SRAM cassette with 12-speed SRAM drivetrains.)

The maximum recommended load of 3 kg (6.6 lbs) per leg when attaching items to the accessory mounts on the OBED Rigid Carbon Gravel Fork with Accessory Mounts