Basso Palta III 820 Shimano GRX 1x12

Name: Basso Palta III 820 Shimano GRX 1x12
Brand: Basso

2026 RoadGravel Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €4,299 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 12 42t / 10–51t
Gear range: 510%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 158–167
SM 165–173
MD 169–180
LG 177–186
XL 183–191
XXL 186–194

Components

3 of 8 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.

Drivetrain

3 parts

Brakes

1 part

Brakes

Hydraulic Disc Not identified

Wheels and tires

1 part

Rims

Microtech MX 25 Not identified

Cockpit and contact points

3 parts

Handlebar

Gravel Carbon Handlebar Not identified
Seatpost

Piuma - 15mm Seatpost Not identified
Stem

Strato Stem Not identified

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 373mm

Stack 570mm

Wheelbase 1026mm

Head angle 70.0°

Seat angle 73.7°

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	354	362	373	385	398	405
Stackmm	530	550	570	590	605	620
Top tube lengthmm	496	515	540	560	578	595
Seat tube lengthmm	410	450	490	520	550	580
Head tube lengthmm	112	127	146	163	179	193
Head tube angle	68°	69°	70°	71°	71°	71°
Seat tube angle	75°	74.5°	73.7°	73.5°	73.5°	73°
Chainstay lengthmm	430	430	430	430	430	430
Wheelbasemm	1012	1013	1026	1035	1054	1060
Front centermm	592	593	606	615	634	640
Bottom bracket dropmm	71	71	71	71	71	71
Bottom bracket heightmm	278	278	278	278	278	278
Standover heightmm	737	770	802	827	850	827
Fork rakemm	45	40	44	45	45	40
Trailmm	92	91	80	73	73	78
Stack/reach ratio	1.50	1.52	1.53	1.53	1.52	1.53

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: 1
Smallest chainring: 42
Largest chainring: 42
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 23.9 in
Highest gear: 121.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Wheel material: Aluminum
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

23.9 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2026
Sample: 1,452 bicycles with this information
Coverage: 73.2% of the class

Highest gear

121.8 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2026
Sample: 1,452 bicycles with this information
Coverage: 73.2% of the class

Shifting

Mechanical

706 of 1,977 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2026
Sample: 1,977 bicycles with this information
Coverage: 99.6% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.1 km/h
Highest gear: 46.7 km/h

Total gear range 510%

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: 23.9–121.8 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: 2026
Lowest gear: 1452 bicycles with this information, 73.2% of the class
Highest gear: 1452 bicycles with this information, 73.2% 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 2026 builds
Specification	This bicycle Basso Palta III 820 Shimano GRX 1x12	Basso Palta III X Campagnolo Record 13	Basso Palta III X 13 Campagnolo Record	Basso Palta III S Rival XPLR 13	Basso Palta III 820 Shimano GRX 2x12	Basso Palta III 825 Shimano GRX Di2 2x12
Drivetrain
Front chainrings	1	2	1	1	2	2
Smallest chainring	42	13	40	40	31	31
Largest chainring	42	40	40	40	48	48
Rear sprockets	12	Not informed	Not informed	13	12	12
Smallest sprocket	10	10	10	10	11	11
Largest sprocket	51	48	48	46	34	34
Lowest gear	23.9 in	7.9 in	24.2 in	25.2 in	26.4 in	26.4 in
Highest gear	121.8 in	116.0 in	116.0 in	116.0 in	126.6 in	126.6 in
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Electronic	Mechanical	Electronic
Other specifications
Wheel material	Aluminum	Aluminum	Aluminum	Carbon	Aluminum	Aluminum