Opus Orpheo LRT ST

Name: Opus Orpheo LRT ST
Brand: Opus

2025 UrbanCommuter Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 10 40t / 11–48t
Gear range: 436%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 151–164
SM 160–172
MD 166–179

Components

16 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

Aluminum Not identified

Suspension

1 part

Fork

Aluminum Tapered 1-1/4 to 1-1/8 IN Not identified

Drivetrain

7 parts

Bottom bracket
- Shimano
Cassette
- Shimano CS-LG400-10 10 speeds 11–48t
CS-LG400-10
Chain
- KMC
Crankset
- Shimano Cues FC-U4000-1 11 speeds
FC-U4000
Front derailleur

None
Rear derailleur
- Shimano Cues RD-U6000 11 speeds
RD-U6000
Shifters
- Shimano Cues

Brakes

2 parts

Brake levers
- Tektro HD-R280
HD-R280
Brakes
- Tektro HD-R280
HD-R280

Wheels and tires

4 parts

Cockpit and contact points

6 parts

Handlebar

Alloy butted 12 mm rise Not identified
Headset
- FSA NO.44E
Pedals

FPD NW-247 Not identified

NW-247
Saddle
- Opus
Seatpost
- ProMax
Stem
- ProMax

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size SM

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 3 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	379	387	396
Stackmm	542	560	580
Top tube lengthmm	529	547	568
Seat tube lengthmm	380	420	460
Head tube lengthmm	113	131	154
Head tube angle	71°	71.25°	71.5°
Seat tube angle	74.5°	74°	73.5°
Chainstay lengthmm	435	440	445
Bottom bracket dropmm	75	75	72.5
Standover heightmm	638	651	668
Stack/reach ratio	1.43	1.45	1.47
Suspension and parts
Crank lengthmm	165	170	170
Handlebar widthmm	580	600	600
Stem lengthmm	70	80	80

Not published by the manufacturer: Wheelbase, Front center, Bottom bracket height, Fork rake, Trail, Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Aluminum

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 40
Largest chainring: 40
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 48
Lowest gear: 24.2 in
Highest gear: 105.5 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 35c
Wheel material: Aluminum
Wheel size: 700c

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.3 km/h
Highest gear: 40.4 km/h

Total gear range 436%

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: 24.2–105.5 gear inches

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
Specification	This bicycle Opus Orpheo LRT ST	Opus Orpheo 2	Opus Orpheo 3	Opus Orpheo 3 ST	Opus Orpheo 4	Opus Orpheo 4 ST
Frame
Fork material	Aluminum	Aluminum	Aluminum	Aluminum	Steel	Steel
Bicycle weight	Not informed	11.34 kg	11.25 kg	11.16 kg	12.02 kg	12.02 kg
Drivetrain
Front chainrings	1	2	3	3	3	3
Smallest chainring	40	30	22	22	24	24
Largest chainring	40	46	44	44	42	42
Rear sprockets	10	9	9	9	8	8
Largest sprocket	48	36	28	28	30	30
Lowest gear	24.2 in	24.2 in	22.8 in	22.8 in	23.2 in	23.2 in
Highest gear	105.5 in	121.3 in	116.0 in	116.0 in	110.7 in	110.7 in
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Mechanical disc	Mechanical disc

Changes since 2024
Specification	2024 Opus Orpheo LRT ST	This bicycle Opus Orpheo LRT ST
Frame
Bicycle weight	12.38 kg	Not informed
Drivetrain
Smallest chainring	38	40
Largest chainring	38	40
Rear sprockets	9	10
Largest sprocket	36	48
Lowest gear	30.6 in	24.2 in
Highest gear	100.2 in	105.5 in