Lapierre Prorace 3.9

Name: Lapierre Prorace 3.9
Brand: Lapierre

2021 MountainCross-country Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €1,199 Last known price
Fork travel: 100 mm
Wheels: 29″
Drivetrain: 1 × 12 32t / 10–51t
Gear range: 510%
Frame: Aluminum
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

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

Components

13 of 16 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

Prorace 29″ Supreme 5 Alloy Disc, Boost, Pressfit, Ta 12x148, Int Brake RR Not identified

Suspension

1 part

Fork
- SR Suntour

Drivetrain

4 parts

Brakes

1 part

Brakes
- Shimano

Wheels and tires

2 parts

Rims
- Rodi
Tires

Tough Tom K-Guard 29X2.25 (Front) Rapid Rob K-Guard 29X2.25 (Rear) Not identified

Cockpit and contact points

7 parts

Grips
- Lapierre
Handlebar
- Lapierre
Headset
- FSA ORBIT IS 138
Pedals

NW 91K steel cage Not identified
Saddle
- Lapierre
Seatpost
- Lapierre
Stem
- Lapierre

Sizes and geometry

5 sizes

Enter your height to highlight matching ranges.

Size Reported by the manufacturer

Geometry not published

The manufacturer lists these sizes without frame measurements, so there is no drawing or geometry table.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 18.2 in
Highest gear: 92.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BB86/BB92
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: 2021
Sample: 1,256 bicycles with this information
Coverage: 91.6% of the class

Lowest gear

18.2 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2021
Sample: 1,101 bicycles with this information
Coverage: 80.3% 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: 2021
Sample: 1,101 bicycles with this information
Coverage: 80.3% of the class

Shifting

Mechanical

89 of 1,368 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2021
Sample: 1,368 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.0 km/h
Highest gear: 35.5 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: 18.2–92.8 gear inches
Class reference (p10–p90): 17.4–100.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2021
Lowest gear: 1101 bicycles with this information, 80.3% of the class
Highest gear: 1101 bicycles with this information, 80.3% 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 2021 builds
Specification	This bicycle Lapierre Prorace 3.9	Lapierre Prorace 20	Lapierre Prorace 24	Lapierre Prorace 3.9 Women	Lapierre Prorace 4.9	Lapierre Prorace 5.9
Frame
Intended fit	Unisex	Unisex	Unisex	womens	Unisex	Unisex
Bicycle weight	Not informed	10.4 kg	12 kg	Not informed	Not informed	Not informed
Suspension
Front travel	100 mm	40 mm	50 mm	100 mm	100 mm	100 mm
Drivetrain
Front chainrings	1	1	3	1	1	1
Smallest chainring	32	32	24	32	30	32
Largest chainring	32	32	42	32	30	32
Rear sprockets	12	7	7	12	12	12
Smallest sprocket	10	14	14	10	11	10
Largest sprocket	51	28	28	51	50	51
Lowest gear	18.2 in	22.9 in	20.6 in	18.2 in	17.4 in	18.2 in
Highest gear	92.8 in	45.7 in	72.0 in	92.8 in	79.1 in	92.8 in
Brakes
Brake type	Mechanical disc	Rim brake	Rim brake	Mechanical disc	Hydraulic disc	Hydraulic disc
Other specifications
Bottom bracket standard	BB86/BB92	Not informed	Not informed	BB86/BB92	BB86/BB92	BB86/BB92
Fork spring	Air	Coil	Coil	Air	Air	Air
Tire width	2.25″	2″	2.1″	2.25″	2.25″	2.25″
Wheel size	29″	20″	24″	29″	29″	29″

Changes since 2020
Specification	2020 Lapierre Prorace 3.9	This bicycle Lapierre Prorace 3.9
Frame
Bicycle weight	12.3 kg	Not informed
Drivetrain
Front chainrings	Not informed	1
Smallest chainring	Not informed	32
Largest chainring	Not informed	32
Lowest gear	Not informed	18.2 in
Highest gear	Not informed	92.8 in
Brakes
Brake type	Hydraulic disc	Mechanical disc