BESV TRX-B 1.1

Name: BESV TRX-B 1.1
Brand: BESV

2025 MountainTrail Electric bicycle Manufacturer page

BESV TRX-B 1.1, color Jade Green with Black Satin

Price: Not published

Prices shown first for United States
Europe: €4,499 Last known price
Fork travel: 120 mm
Wheels: 29″
Drivetrain: 1 × 12 34t / 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

17 of 22 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
- RockShox Recon Silver RL

Drivetrain

6 parts

Bottom bracket
- Bosch
Cassette
- Shimano Deore CS-M6100-12 12 speeds 10–51t
CS-M6100-12CS-M6100
Chain
- KMC
Crankset
- Samox 34t
Rear derailleur
- Shimano Deore XT RD-M8100 12 speeds
RD-M8100
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-TC500-15FH-TC500-MS
Tires

29 x 2.6 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 S5 SUPERFLOW
Seatpost
- ProMax
SP-726
Stem

E-MTB 3D Forged alloy stem, 31.8mm clamp, for internal cable routing Not identified

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 428mm

Stack 539mm

Wheelbase 1174mm

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	422	428	449
Stackmm	539	539	539
Top tube lengthmm	616	630	650
Seat tube lengthmm	425	490	490
Head tube lengthmm	130	130	130
Head tube angle	68°	68°	68°
Seat tube angle	74°	73°	73°
Chainstay lengthmm	460	460	460
Wheelbasemm	1166	1174	1194
Front centermm	715	719	739
Bottom bracket dropmm	70	55	55
Bottom bracket heightmm	304	319	319
Standover heightmm	705	739	759
Fork rakemm	93	87	86
Trailmm	51	57	59
Stack/reach ratio	1.28	1.26	1.20

Not published by the manufacturer: 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: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 19.3 in
Highest gear: 98.6 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: 2.6″
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

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

19.3 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

98.6 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

Mechanical

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: 7.4 km/h
Highest gear: 37.8 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: 19.3–98.6 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
Specification	This bicycle BESV TRX-B 1.1	BESV TRX-B 1.0	BESV TRX-B 1.0 LS	BESV TRX-B 1.1 ST	BESV TRX-B 1.2	BESV TRX-B 1.2 LS
Frame
Bicycle weight	Not informed	26.4 kg	26.4 kg	Not informed	25.3 kg	25.1 kg
Drivetrain
Rear sprockets	12	12	12	12	11	11
Smallest sprocket	10	10	10	10	11	11
Largest sprocket	51	51	51	51	50	50
Lowest gear	19.3 in	19.3 in	19.3 in	19.3 in	19.7 in	19.7 in
Highest gear	98.6 in	98.6 in	98.6 in	98.6 in	89.6 in	89.6 in
Electric bicycle systems
Battery capacity	750 Wh	750 Wh	750 Wh	750 Wh	625 Wh	625 Wh