Bianchi Jab 29.1

Name: Bianchi Jab 29.1
Brand: Bianchi

2017 MountainCross-country

Last known price: $1,699

Prices shown first for United States
Fork travel: 100 mm
Wheels: 29″
Drivetrain: 2 × 11 26–36t / 11–42t
Gear range: 529%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

MD 165–177
LG 175–188
XL 185–198

Components

15 of 21 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

JAB 29" SX, triple butted 6061 aluminum, 1.5" tapered HT, BSA 73mm, PM 160mm rotor compatible, 12x142mm thru-axle Not identified

Suspension

1 part

Fork
- RockShox Recon

Drivetrain

7 parts

Bottom bracket
- Shimano
Cassette
- Shimano SLX CS-M7000-11 11–42t
CS-M7000-11
Chain
- KMC X11 11 speeds
Crankset
- Shimano SLX FC-M7000 36/26t
FC-M7000
Front derailleur
- Shimano SLX FD-M7025-11-D 2 speeds
FD-M7025-11
Rear derailleur
- Shimano Deore XT RD-M8000-GS
RD-M8000-GS
Shifters
- Shimano SLX SL-M7000
SL-M7000

Brakes

2 parts

Brakes
- Shimano BL-M425
BL-M425
Disc rotors
- Shimano SM-RT30
SM-RT30

Wheels and tires

4 parts

Cockpit and contact points

6 parts

Handlebar

TEC Obvius, 700mm, 31.8mm, DB Alloy 6061-T6 Not identified
Headset

Orbit 1.5E ZS Not identified
Pedals

Included Not identified
Saddle
- San Marco
Seatpost

TEC Obvius, aluminum, forged head Not identified
Stem

TEC Obvius, 31.8mm bar clamp, 3D forged alloy 6061 Not identified

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size LG

Table

Geometry diagram unavailable

The drawing needs wheelbase and seat tube length, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	403	422	441
Stackmm	630	634	639
Top tube lengthmm	590	610	630
Head tube lengthmm	110	115	120
Head tube angle	71°	71°	71°
Seat tube angle	73.5°	73.5°	73.5°
Chainstay lengthmm	445	445	445
Bottom bracket dropmm	65	65	65
Bottom bracket heightmm	309	309	309
Stack/reach ratio	1.56	1.50	1.45

Not published by the manufacturer: Seat tube length, Wheelbase, Front center, Standover height, Fork rake, Trail, 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: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 26
Largest chainring: 36
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 18.0 in
Highest gear: 94.9 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Fork spring: Air
Tire width: 2.1″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

3 measures

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

Front travel

100 mm

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2017
Sample: 555 bicycles with this information
Coverage: 87.8% of the class

Lowest gear

18.0 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2017
Sample: 607 bicycles with this information
Coverage: 96.0% of the class

Highest gear

94.9 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2017
Sample: 607 bicycles with this information
Coverage: 96.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.9 km/h
Highest gear: 36.4 km/h

Total gear range 529%

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: 18.0–94.9 gear inches
Class reference (p10–p90): 17.0–110.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2017
Lowest gear: 607 bicycles with this information, 96.0% of the class
Highest gear: 607 bicycles with this information, 96.0% 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 2017 builds

Differences across 2017 builds
Specification	This bicycle Bianchi Jab 29.1	Bianchi Jab 27.2 Plus	Bianchi Jab 29.3
Frame
Fork material	Not informed	Not informed	Aluminum
Suspension
Front travel	100 mm	120 mm	Not informed
Drivetrain
Smallest chainring	26	22	22
Rear sprockets	11	10	10
Largest sprocket	42	36	36
Lowest gear	18.0 in	16.8 in	17.7 in
Highest gear	94.9 in	90.0 in	94.9 in
Brakes
Brake type	Hydraulic disc	Mechanical disc	Hydraulic disc
Other specifications
Bottom bracket standard	BSA	BB86/BB92	BSA
Fork spring	Air	Air	Not informed
Tire width	2.1″	2.8″	2.1″
Wheel size	29″	27.5″	29″