Berria Naii BR GRX800 Di2

Name: Berria Naii BR GRX800 Di2
Brand: Berria

2027 RoadGravel Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €4,184 Last known price
Travel: / 28 mm Fork / rear shock
Wheels: 700c
Drivetrain: 2 × 12 31–48t / 11–34t
Gear range: 479%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

46cm 150+
48cm 150–160
51cm 160–170
54cm 170–180
57cm 180–190
60cm 190+

Components

12 of 14 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

NAII Carbon, Geometry BGC with 28mm travel SOFTEX Suspension System, Full carbon HM3X, Triple monocoque, T47 bottom bracket, Full internal cable system ICS2, Headset semi integrated OH2S 1-1/2"- 1-1/2", Flat Mount 140mm, 700x50c maximum tyre, dedicated Seat post, Thru axle 12x142mm, UDH standard Not identified

Suspension

1 part

Fork

NAII BR Fork, full carbon, internal cable system ICS2, 1-1/8" - 1-1/2" Tapered, Flat Mount Standard max. 160mm disc, 700x50c maximum tyre, 48mm fork rake, 395mm axle to crown, Thru axle 12x100mm Not identified

Drivetrain

6 parts

Bottom bracket
- Shimano
Cassette
- Shimano Ultegra CS-R8100 11–34t
CS-R8100
Chain
- Shimano SLX CN-M7100
CN-M7100
Crankset
- Shimano GRX FC-RX820 12 speeds 48/31t
FC-RX820FC-RX820-12
Rear derailleur
- Shimano GRX RD-RX825 12 speeds
RD-RX825
Shifters
- Shimano GRX ST-RX825
ST-RX825

Brakes

1 part

Brakes
- Shimano GRX BR-RX820
BR-RX820

Wheels and tires

2 parts

Cockpit and contact points

3 parts

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 51cm

Table

Reach 395mm

Stack 539mm

Wheelbase 1014mm

Head angle 71.0°

Seat angle 75.0°

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 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	372	382	395	405	415	425
Stackmm	524	524.6	538.8	556.5	575.5	596.4
Seat tube lengthmm	440	460	485	510	535	560
Head tube lengthmm	95	95	110	130	150	170
Head tube angle	70.5°	71°	71°	71.5°	71.5°	72°
Seat tube angle	75.5°	75°	75°	75°	74.5°	74.5°
Chainstay lengthmm	420	420	420	420	420	420
Wheelbasemm	994.3	998.7	1013.6	1026.4	1042.8	1054.6
Front centermm	586	590	605	617	633	645
Bottom bracket dropmm	75	75	75	72	72	72
Bottom bracket heightmm	274	274	274	277	277	277
Fork rakemm	47	46	43	43	43	43
Trailmm	75.5	71.8	71.8	68.5	68.5	65.2
Stack/reach ratio	1.41	1.37	1.36	1.37	1.39	1.40

Not published by the manufacturer: Top tube length, Standover height, 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: Full suspension
Rear travel: 28 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 31
Largest chainring: 48
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 26.4 in
Highest gear: 126.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Derailleur hanger: UDH
Seatpost: Rigid seatpost
Shifting: Electronic

Additional specifications

Bottom bracket standard: T47
Tire clearance: Maximum tire width: 50c; Additional specification: Wheel kind: 700
Tire width: 45c
Wheel material: Carbon
Wheel size: 700c

Technical analysis

3 measures

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

Lowest gear

26.4 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2027
Sample: 213 bicycles with this information
Coverage: 80.0% of the class

Highest gear

126.6 gear inches

This value is above the central range for this class.

Cohort: Road / Gravel Model year: 2027
Sample: 213 bicycles with this information
Coverage: 80.0% of the class

Shifting

Electronic

126 of 265 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2027
Sample: 265 bicycles with this information
Coverage: 99.6% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.1 km/h
Highest gear: 48.5 km/h

Total gear range 479%

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: 26.4–126.6 gear inches
Class reference (p10–p90): 22.8–127.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2027
Lowest gear: 213 bicycles with this information, 80.0% of the class
Highest gear: 213 bicycles with this information, 80.0% 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 2027 builds

Differences across 2027 builds
Specification	This bicycle Berria Naii BR GRX800 Di2	Berria Naii BR PWM Force XPLR AXS	Berria Naii BR PWM Red XPLR AXS	Berria Naii BR PWM Rival XPLR AXS	Berria Naii X Essential Apex Mullet	Berria Naii X Essential GRX400
Suspension
Suspension configuration	Full suspension	Full suspension	Full suspension	Full suspension	Rigid	Rigid
Rear travel	28 mm	28 mm	28 mm	28 mm	Not informed	Not informed
Drivetrain
Front chainrings	2	1	1	1	1	2
Smallest chainring	31	42	44	42	42	30
Largest chainring	48	42	44	42	42	46
Rear sprockets	12	13	13	13	12	10
Smallest sprocket	11	10	10	10	11	11
Largest sprocket	34	46	46	46	50	36
Lowest gear	26.4 in	26.5 in	27.7 in	26.5 in	24.4 in	24.2 in
Highest gear	126.6 in	121.8 in	127.6 in	121.8 in	110.7 in	121.3 in
Wheels
Wheel configuration	Same size	Same size	Same size	Same size	Different sizes	Same size
Cockpit
Shifting	Electronic	Electronic	Electronic	Electronic	Mechanical	Mechanical
Other specifications
Suspension	Full suspension	Full suspension	Full suspension	Full suspension	Rigid	Rigid
Tire width	45c	45c	45c	45c	45c	40c
Wheel material	Carbon	Carbon	Carbon	Carbon	Aluminum	Aluminum
Wheel size	700c	700c	700c	700c	29″ / 27.5″	700c