BESV TRX-B Urban 1.1 ST

Name: BESV TRX-B Urban 1.1 ST
Brand: BESV

2025 UrbanGeneral urban Electric bicycle Manufacturer page

BESV TRX-B Urban 1.1 ST, color Metallic Khaki with Black Satin

Price: Not published

Prices shown first for United States
Europe: €4,699 Last known price
Fork travel: 100 mm
Wheels: 29″
Drivetrain: 1 × 12 38t / 10–51t
Gear range: 510%
Battery: 750 Wh
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 163–176
MD 174–188
LG 185–197

Components

18 of 25 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

Hard-tail BESV TRX-B Series smooth welded alloy frame, Bosch motor and internal battery compatible Not identified

Electric system

3 parts

Suspension

1 part

Fork
- SR Suntour XCR34

Drivetrain

6 parts

Bottom bracket
- Bosch
Cassette
- Shimano Deore CS-M6100-12 12 speeds 10–51t
CS-M6100-12CS-M6100
Chain
- KMC
Crankset
- Samox 38t
Rear derailleur
- Shimano Deore RD-M6100 12 speeds
RD-M6100
Shifters
- Shimano Deore SL-M6100 12 speeds
SL-M6100

Brakes

2 parts

Brake levers
- Shimano
Brakes
- Shimano

Wheels and tires

2 parts

Rims
- Shimano
HB-TC500-15MT-410B
Tires

29 x 2.35 Not identified

Cockpit and contact points

7 parts

Grips
- BESV
Handlebar

E-MTB rizer bar, 6066 alloy, 4mm rise, sweep: 7° back, 31.8mm clamp Not identified
Headset
- Acros
AZX-581
Pedals
- Wellgo
Saddle
- Selle Italia MAX S 5 Superflow
Seatpost
- ProMax
SP-726
Stem

3D Forged alloy City-Trekking stem, SP-Connect mount, 31.8mm clamp, integrated cable routing Not identified

Other components

3 parts

Fenders

Alloy extruded fenders, front & rear 3/4 length, stainless steel hardware Not identified
Lights
- Lezyne
Racks

Tubular aluminium carrier, with MIK-HD platform and spring clamp, H-Cargo rear light mount Not identified

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 430mm

Stack 519mm

Wheelbase 1167mm

Head angle 68.0°

Seat angle 73.0°

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 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	425	430	448
Stackmm	519	519	519
Top tube lengthmm	616	630	650
Seat tube lengthmm	425	460	490
Head tube lengthmm	140	140	150
Head tube angle	68°	68°	68°
Seat tube angle	74°	73°	73°
Chainstay lengthmm	460	460	460
Wheelbasemm	1166	1167	1188
Front centermm	715	712	733
Bottom bracket dropmm	70	55	55
Standover heightmm	625	632	633
Fork rakemm	97	86	89
Trailmm	36	48	45
Stack/reach ratio	1.22	1.21	1.16

Not published by the manufacturer: Bottom bracket height, 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
Fork material: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 38
Largest chainring: 38
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 21.6 in
Highest gear: 110.2 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Electric system

Battery capacity: 750 Wh

Additional specifications

Battery: 750WH
Bottom bracket standard: Bosch
Fork spring: Air
Tire width: 2.35″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

1 measure

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

Shifting

Mechanical

11 of 276 bicycles with this information use electronic shifting.

Cohort: Urban / General urban Model year: 2025
Sample: 276 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.3 km/h
Highest gear: 42.2 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: 21.6–110.2 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 BESV TRX-B Urban 1.1 ST	BESV TRX-B 1.0	BESV TRX-B 1.0 LS	BESV TRX-B 1.1	BESV TRX-B 1.1 ST	BESV TRX-B 1.2
Frame
Bicycle weight	Not informed	26.4 kg	26.4 kg	Not informed	Not informed	25.3 kg
Suspension
Front travel	100 mm	120 mm	120 mm	120 mm	120 mm	120 mm
Drivetrain
Smallest chainring	38	34	34	34	34	34
Largest chainring	38	34	34	34	34	34
Rear sprockets	12	12	12	12	12	11
Smallest sprocket	10	10	10	10	10	11
Largest sprocket	51	51	51	51	51	50
Lowest gear	21.6 in	19.3 in	19.3 in	19.3 in	19.3 in	19.7 in
Highest gear	110.2 in	98.6 in	98.6 in	98.6 in	98.6 in	89.6 in
Electric bicycle systems
Battery capacity	750 Wh	750 Wh	750 Wh	750 Wh	750 Wh	625 Wh
Other specifications
Tire width	2.35″	2.6″	2.6″	2.6″	2.6″	2.6″