Lapierre XR 729

2018 MountainCross-country

Travel: 100 / 100 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 32t / 10–50t
Gear range: 500%
Weight: 11.5 kg 25.4 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

18 of 19 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

2 parts

Drivetrain

7 parts

Bottom bracket
- SRAM
Cassette
- SRAM XG-1275 Eagle 12 speeds
XG-1275
Chain guide

None
Crankset
- SRAM S-650 Eagle 11 speeds
S-650
Front derailleur

None
Rear derailleur
- SRAM X01
Shifters
- SRAM GX Eagle Trigger 12 speeds

Brakes

2 parts

Wheels and tires

4 parts

Cockpit and contact points

6 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Geometry diagram unavailable

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

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	412	437	452	477
Stackmm	587	587	605	605
Top tube lengthmm	575	600	620	645
Seat tube lengthmm	390	430	470	510
Head tube lengthmm	100	100	120	120
Head tube angle	69°	69°	69°	69°
Seat tube angle	74.5°	74.5°	74.5°	74.5°
Chainstay lengthmm	441	441	441	441
Bottom bracket dropmm	40	40	40	40
Bottom bracket heightmm	334	334	334	334
Stack/reach ratio	1.43	1.34	1.34	1.27

Not published by the manufacturer: 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: Carbon
Bicycle weight: 11.5 kg

25.4 lb

Suspension

Suspension configuration: Full suspension
Front travel: 100 mm
Rear travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 50
Lowest gear: 18.6 in
Highest gear: 92.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Air
Tire width: 2.25″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 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: 2018
Sample: 771 bicycles with this information
Coverage: 97.9% of the class

Lowest gear

18.6 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 724 bicycles with this information
Coverage: 91.9% of the class

Highest gear

92.8 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 724 bicycles with this information
Coverage: 91.9% of the class

Shifting

Mechanical

18 of 787 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2018
Sample: 787 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.1 km/h
Highest gear: 35.5 km/h

Total gear range 500%

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: 18.6–92.8 gear inches
Class reference (p10–p90): 16.5–105.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2018
Lowest gear: 724 bicycles with this information, 91.9% of the class
Highest gear: 724 bicycles with this information, 91.9% 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 2018 builds

Differences across 2018 builds
Specification	This bicycle Lapierre XR 729	Lapierre XR 529	Lapierre XR 929 Ultimate
Frame
Bicycle weight	11.5 kg	12.3 kg	10.7 kg
Drivetrain
Smallest chainring	32	30	32
Largest chainring	32	30	32
Rear sprockets	12	11	12
Smallest sprocket	10	11	10
Largest sprocket	50	42	50
Lowest gear	18.6 in	20.7 in	18.6 in
Highest gear	92.8 in	79.1 in	92.8 in
Other specifications
Wheel material	Aluminum	Aluminum	Carbon
Bottom bracket standard	Not informed	BB86/BB92	Not informed