BESV TRS-B 140 LTD

2025 MountainTrail Electric bicycle Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €4,799 Last known price
Fork travel: 140 mm
Wheels: 29″
Drivetrain: 1 × 12 36t / 10–51t
Gear range: 510%
Battery: 708 Wh
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

MD 165–175
SM 165–176
LG 174–187

Components

17 of 23 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

BESV TRS-B 140 Series alloy frame, smooth welded, Bosch eBike system compatible, Gen.5 motor mount Not identified

Electric system

3 parts

Suspension

2 parts

Drivetrain

6 parts

Bottom bracket
- Bosch
Cassette
- Shimano Deore CS-M6100-12 12 speeds 10–51t
CS-M6100-12CS-M6100
Chain
- Shimano Deore CN-M6100
CN-M6100
Crankset
- FSA 36t
Rear derailleur
- Shimano Deore RD-M6100 12 speeds
RD-M6100
Shifters
- Shimano Deore SL-M6100 12 speeds
SL-M6100

Brakes

1 part

Brakes
- Shimano BR-MT420
BR-MT420

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
- WTB Wafel
Handlebar

E-MTB rizer bar Not identified
Headset
- Token
Pedals
- Wellgo
Saddle
- Selle Italia
Seatpost

Kind Shock e20i dropper post with remote lever, 170mm travel Not identified
Stem

E-MTB alloy stem Not identified

Other components

1 part

Lock
- Abus

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size SM

Table

Reach 455mm

Stack 643mm

Wheelbase 1240mm

Head angle 65.0°

Seat angle 76.5°

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	450	455	470
Stackmm	637	643	642
Top tube lengthmm	591	609	612
Seat tube lengthmm	425	415	445
Head tube lengthmm	120	120	125
Head tube angle	65°	65°	65°
Seat tube angle	77.5°	76.5°	77.5°
Chainstay lengthmm	465	455	465
Wheelbasemm	1248	1240	1270
Front centermm	784	788	806
Bottom bracket dropmm	25	40	25
Bottom bracket heightmm	349	334	349
Standover heightmm	789	759	788
Fork rakemm	44	46	43
Trailmm	126	124	127
Stack/reach ratio	1.42	1.41	1.37

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
Weight limit: 160 kg

352.7 lb

Suspension

Suspension configuration: Full suspension
Front travel: 140 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 36
Largest chainring: 36
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 20.5 in
Highest gear: 104.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Electric system

Battery capacity: 708 Wh

Additional specifications

Battery: 708WH
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

140 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,810 bicycles with this information
Coverage: 97.5% of the class

Lowest gear

20.5 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,384 bicycles with this information
Coverage: 74.6% of the class

Highest gear

104.4 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,384 bicycles with this information
Coverage: 74.6% of the class

Shifting

Mechanical

388 of 1,849 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,849 bicycles with this information
Coverage: 99.6% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.8 km/h
Highest gear: 40.0 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: 20.5–104.4 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: 1384 bicycles with this information, 74.6% of the class
Highest gear: 1384 bicycles with this information, 74.6% 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 BESV TRS-B 140 LTD	BESV TRS-B 140 1.0	BESV TRS-B 140 SUV 1.0	BESV TRS-B 140 SUV LTD	BESV TRS-B 170 1.0	BESV TRS-B 170 1.2
Frame
Weight limit	160 kg	160 kg	Not informed	160 kg	160 kg	160 kg
Bicycle weight	Not informed	26.6 kg	Not informed	31 kg	Not informed	Not informed
Suspension
Front travel	140 mm	140 mm	140 mm	140 mm	170 mm	170 mm
Drivetrain
Rear sprockets	12	12	11	10	12	12
Smallest sprocket	10	10	11	11	10	10
Largest sprocket	51	51	50	48	51	51
Lowest gear	20.5 in	20.5 in	20.9 in	21.8 in	19.4 in	19.4 in
Highest gear	104.4 in	104.4 in	94.9 in	94.9 in	99.0 in	99.0 in
Wheels
Wheel configuration	Same size	Same size	Same size	Same size	Different sizes	Different sizes
Electric bicycle systems
Battery capacity	708 Wh	708 Wh	800 Wh	800 Wh	708 Wh	708 Wh
Other specifications
Wheel size	29″	29″	29″	29″	29″ / 27.5″	29″ / 27.5″