Lauf Elja XC - Ultimate Flight Attendant

Name: Lauf Elja XC - Ultimate Flight Attendant
Brand: Lauf

2025 MountainTrail Manufacturer page

Lauf Elja XC - Ultimate Flight Attendant, color Basalt Black - Glossy

Last known price: $8,990

Prices shown first for United States
Travel: 120 / 120 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 32t / 10–52t
Gear range: 520%
Weight: 11.69 kg 25.8 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 156–168
MD 165–180
LG 177–192
XL 189–200

Components

19 of 20 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

Lauf IRM* Elja carbon frame, 29x2.8/3.0" tire clearance**, Boost148, LSP, 120mm travel Not identified

Suspension

2 parts

Drivetrain

7 parts

Brakes

2 parts

Wheels and tires

2 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

Reach 450mm

Stack 605mm

Wheelbase 1183mm

Head angle 66.0°

Seat angle 76.8°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	420	450	480	507
Stackmm	595	605	615	625
Seat tube lengthmm	406	443	453	463
Head tube lengthmm	95	106	117	127
Head tube angle	66°	66°	66°	66°
Seat tube angle	77.5°	76.8°	76.2°	75.7°
Chainstay lengthmm	435	435	435	435
Wheelbasemm	1149	1183	1218	1249
Front centermm	716	751	785	816
Bottom bracket dropmm	40	40	40	40
Bottom bracket heightmm	334	334	334	334
Standover heightmm	724	747	756	765
Fork rakemm	44	44	44	44
Trailmm	117	119	117	119
Stack/reach ratio	1.42	1.34	1.28	1.23
Suspension and parts
Stem lengthmm	35	35	35	35

Not published by the manufacturer: Top tube length, Front travel, Rear travel, Crank length, Handlebar width, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Bicycle weight: 11.69 kg

25.8 lb

Suspension

Suspension configuration: Full suspension
Front travel: 120 mm
Rear travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 52
Lowest gear: 17.9 in
Highest gear: 92.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Derailleur hanger: UDH
Seatpost: Dropper seatpost
Shifting: Electronic

Additional specifications

Bottom bracket standard: BSA
Power meter: Dual-side SRAM AXS power meter spider
Tire width: 2.6″
Wheel material: Carbon
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

120 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,808 bicycles with this information
Coverage: 97.5% of the class

Lowest gear

17.9 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,382 bicycles with this information
Coverage: 74.5% of the class

Highest gear

92.8 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,382 bicycles with this information
Coverage: 74.5% of the class

Shifting

Electronic

387 of 1,847 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,847 bicycles with this information
Coverage: 99.6% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.8 km/h
Highest gear: 35.5 km/h

Total gear range 520%

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: 17.9–92.8 gear inches
Class reference (p10–p90): 17.1–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2025
Lowest gear: 1382 bicycles with this information, 74.5% of the class
Highest gear: 1382 bicycles with this information, 74.5% 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 2025 builds

Differences across 2025 builds
Specification	This bicycle Lauf Elja XC - Ultimate Flight Attendant	Lauf Elja Trail - Race	Lauf Elja Trail - Race Flight Attendant	Lauf Elja Trail - Ultimate Flight Attendant	Lauf Elja Trail - Weekend Warrior Transmission	Lauf Elja XC - Race Flight Attendant
Frame
Bicycle weight	11.69 kg	12.14 kg	12.42 kg	12.03 kg	13.06 kg	12.09 kg
Suspension
Front travel	120 mm	130 mm	130 mm	130 mm	130 mm	120 mm
Other specifications
Power meter	Dual-side SRAM AXS power meter spider	Single-sided SRAM AXS power meter	Single-sided SRAM AXS power meter	Dual-side SRAM AXS power meter spider	Not informed	Single-sided SRAM AXS power meter
Wheel material	Carbon	Carbon	Carbon	Carbon	Aluminum	Carbon
Fork spring	Not informed	Not informed	Air	Air	Air	Not informed