BULLS Sonic EVA TR 1 27.5

2021 MountainTrail Electric bicycle Manufacturer page

BULLS Sonic EVA TR 1 27.5, color Light Blue

Price: Not published

Prices shown first for United States
Europe: €4,099 Last known price
Travel: 120 / 120 mm Fork / rear shock
Wheels: 27.5″
Drivetrain: 1 × 12 11–50t
Gear range: 455%
Battery: 500 Wh
Weight: 24.2 kg 53.4 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

40cm
44cm
48cm

The manufacturer did not publish rider heights for these sizes.

Components

20 of 21 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

Alloy Not identified

Electric system

3 parts

Suspension

2 parts

Drivetrain

4 parts

Cassette
- SRAM PG-1210 Eagle 12 speeds 11–50t
PG-1210CS-PG1210-A1
Crankset
- FSA
CK-320
Rear derailleur
- SRAM SX Eagle 12 speeds
Shifters
- SRAM SX Eagle Trigger 12 speeds
SL-1-A1

Brakes

1 part

Brakes
- Shimano BR-MT420
BR-MT420

Wheels and tires

4 parts

Cockpit and contact points

6 parts

Sizes and geometry

3 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 44cm

Table

Reach 436mm

Stack 607mm

Wheelbase 1180mm

Head angle 67.5°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	403	436	451
Stackmm	605	607	618
Top tube lengthmm	561	591	609
Seat tube lengthmm	—	440	480
Head tube lengthmm	120	120	130
Head tube angle	67.5°	67.5°	67.5°
Seat tube angle	73°	73°	73°
Chainstay lengthmm	450	450	450
Wheelbasemm	1150	1180	1198
Front centermm	702	732	750
Bottom bracket dropmm	30	30	30
Bottom bracket heightmm	325	325	325
Fork rakemm	55	52	50
Trailmm	88	91	93
Stack/reach ratio	1.50	1.39	1.37

Not published by the manufacturer: Standover 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: womens
Frame material: Aluminum
Bicycle weight: 24.2 kg

53.4 lb

Suspension

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

Drivetrain

Derived by Bikelake

Front chainrings: 1
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 50

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Electric system

Battery capacity: 500 Wh

Additional specifications

Battery: PowerTube 500 Vertikal
Fork spring: Air
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

2 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: 2021
Sample: 1,324 bicycles with this information
Coverage: 98.1% of the class

Shifting

Mechanical

53 of 1,346 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,346 bicycles with this information
Coverage: 99.7% 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 2021 builds

Differences across 2021 builds
Specification	This bicycle BULLS Sonic EVA TR 1 27.5	BULLS Sonic EVA TR 2 27.5	BULLS Sonic EVO 1 27.5	BULLS Sonic EVO 1 29	BULLS Sonic EVO AM 1	BULLS Sonic EVO AM 2 Carbon
Frame
Intended fit	womens	womens	Unisex	Unisex	Unisex	Unisex
Frame material	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Carbon
Bicycle weight	24.2 kg	25.9 kg	22.8 kg	22.8 kg	26.2 kg	25.3 kg
Suspension
Suspension configuration	Full suspension	Full suspension	Hardtail	Hardtail	Full suspension	Full suspension
Front travel	120 mm	120 mm	120 mm	120 mm	140 mm	150 mm
Rear travel	120 mm	120 mm	Not informed	Not informed	150 mm	150 mm
Drivetrain
Rear sprockets	12	Not informed	10	10	12	Not informed
Smallest sprocket	11	10	11	11	10	10
Largest sprocket	50	51	46	46	50	51
Cockpit
Seatpost	Rigid seatpost	Dropper seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost
Electric bicycle systems
Battery capacity	500 Wh	500 Wh	625 Wh	500 Wh	500 Wh	625 Wh
Other specifications
Fork spring	Air	Not informed	Air	Air	Air	Not informed
Suspension	Full suspension	Full suspension	Hardtail	Hardtail	Full suspension	Full suspension
Wheel size	27.5″	27.5″	27.5″	29″	27.5″	27.5″