Obed Boundary GRX 400

2022 RoadGravel Manufacturer page

Last known price: $2,695

Prices shown first for United States
Suspension: Rigid
Wheels: 700c, 650b
Drivetrain: 2 × 10 30–46t / 11–36t
Gear range: 502%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 156–166
XS 156–166
SM 163–174
SM 163–174
MD 171–182
MD 171–182
LG 179–189
LG 179–189
XL 185–195
XL 185–195

Components

15 of 18 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Carbon Fiber Not identified

Suspension

1 part

Fork

Boundary Carbon, Multiple Rack/Fender/Cargo Mounts Not identified

Drivetrain

7 parts

Bottom bracket
- Shimano
Cassette
- Shimano CS-HG50-10 10 speeds
CS-HG50-10
Chain
- Shimano CN-HG54
CN-HG54
Crankset
- Shimano GRX FC-RX600 46/30t
FC-RX600
Front derailleur
- Shimano GRX FD-RX400 2 speeds
FD-RX400
Rear derailleur
- Shimano GRX RD-RX400 10 speeds
RD-RX400
Shifters
- Shimano GRX ST-RX400
ST-RX400

Brakes

2 parts

Wheels and tires

2 parts

Rims

Select Wheels Above Not identified
Tires
- Panaracer

Cockpit and contact points

5 parts

Sizes and geometry

10 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 376mm

Stack 568mm

Wheelbase 1026mm

Head angle 71.5°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 10 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	371	371	375	375	376	376	385	385	394	394
Stackmm	537	537	557	557	568	568	590	590	609	609
Top tube lengthmm	520	520	535	535	550	550	565	565	580	580
Seat tube lengthmm	490	490	520	520	540	540	560	560	580	580
Head tube lengthmm	120	120	140	140	150	150	170	170	190	190
Head tube angle	70.5°	70.5°	71°	71°	71.5°	71.5°	72°	72°	72°	72°
Seat tube angle	74.5°	74.5°	74°	74°	73°	73°	73°	73°	73°	73°
Chainstay lengthmm	435	435	435	435	435	435	435	435	435	435
Wheelbasemm	1020	1020	1021	1021	1026	1026	1037	1037	1052	1052
Front centermm	594	594	595	595	600	600	611	611	626	626
Bottom bracket dropmm	67	67	67	67	67	67	67	67	67	67
Bottom bracket heightmm	282	—	282	—	282	—	282	—	282	—
Standover heightmm	759	759	786	786	803	803	823	823	843	843
Fork rakemm	50	50	50	50	50	50	50	50	50	50
Trailmm	71	64	73	66	64	58	61	55	61	55
Stack/reach ratio	1.45	1.45	1.49	1.49	1.51	1.51	1.53	1.53	1.55	1.55

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 30
Largest chainring: 46
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 22.9 in
Highest gear: 115.0 in

Wheels and brakes

Wheel configuration: Wheel options
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire clearance: Maximum tire width: 45c; Additional specification: Wheel kind: 700
Wheel material: Aluminum
Wheel size: 700c, 650b

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

22.9 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2022
Sample: 1,202 bicycles with this information
Coverage: 84.1% of the class

Highest gear

115.0 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2022
Sample: 1,202 bicycles with this information
Coverage: 84.1% of the class

Shifting

Mechanical

373 of 1,429 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2022
Sample: 1,429 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.8 km/h
Highest gear: 44.0 km/h

Total gear range 502%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 22.9–115.0 gear inches
Class reference (p10–p90): 24.2–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2022
Lowest gear: 1202 bicycles with this information, 84.1% of the class
Highest gear: 1202 bicycles with this information, 84.1% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2022 builds
Specification	This bicycle Obed Boundary GRX 400	Obed Boundary Campagnolo Ekar 1x13	Obed Boundary GRX 600	Obed Boundary GRX 810	Obed Boundary GRX 810 Di2	Obed Boundary MLT (Mullet)
Drivetrain
Front chainrings	2	1	2	2	2	1
Smallest chainring	30	40	30	31	31	40
Largest chainring	46	40	46	48	48	40
Rear sprockets	10	13	11	11	11	11
Smallest sprocket	11	10	11	11	11	11
Largest sprocket	36	44	34	34	34	42
Lowest gear	22.9 in	25.0 in	24.3 in	25.1 in	25.1 in	26.2 in
Highest gear	115.0 in	110.0 in	115.0 in	120.0 in	120.0 in	100.0 in
Cockpit
Seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost
Shifting	Mechanical	Mechanical	Mechanical	Mechanical	Electronic	Mechanical
Other specifications
Tire width	Not informed	Not informed	1.9″	1.9″	1.9″	45c
Bottom bracket standard	Not informed	Not informed	Not informed	BB86/BB92	BB86/BB92	Not informed