BULLS Sonic EVO TR 1 29

2021 MountainTrail Electric bicycle Manufacturer page

BULLS Sonic EVO TR 1 29, color Blue Grey

Price: Not published

Prices shown first for United States
Europe: €4,099 Last known price
Travel: 120 / 120 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 34t / 10–50t
Gear range: 500%
Battery: 500 Wh
Weight: 23.8 kg 52.5 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

41cm
44cm
48cm
51cm
53cm

The manufacturer did not publish rider heights for these sizes.

Components

20 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

Alloy Not identified

Electric system

3 parts

Suspension

2 parts

Drivetrain

4 parts

Brakes

1 part

Brakes
- Shimano BR-MT420
BR-MT420

Wheels and tires

4 parts

Cockpit and contact points

6 parts

Other components

1 part

Lights

MonkeyLink Ready Not identified

Sizes and geometry

5 sizes Open in the geometry plotter

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

Size 48cm

Table

Reach 450mm

Stack 636mm

Wheelbase 1215mm

Head angle 67.5°

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 Reach Stack

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	419	430	450	480	510
Stackmm	626	627	636	646	664
Top tube lengthmm	580	588	611	644	679
Seat tube lengthmm	410	440	480	510	530
Head tube lengthmm	120	120	130	140	160
Head tube angle	67.5°	67.5°	67.5°	67.5°	67.5°
Seat tube angle	73°	73°	73°	73°	73°
Chainstay lengthmm	465	465	465	465	465
Wheelbasemm	1181	1192	1215	1249	1287
Front centermm	720	731	754	787	825
Bottom bracket dropmm	45	45	45	45	45
Bottom bracket heightmm	329	329	329	329	329
Fork rakemm	54	54	53	53	53
Trailmm	97	97	98	98	98
Stack/reach ratio	1.49	1.46	1.41	1.35	1.30

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: Unisex
Frame material: Aluminum
Bicycle weight: 23.8 kg

52.5 lb

Suspension

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

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 50
Lowest gear: 19.7 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: 500 Wh

Additional specifications

Battery: PowerTube 500 Vertikal
Fork spring: Air
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: 2021
Sample: 1,324 bicycles with this information
Coverage: 98.1% of the class

Lowest gear

19.7 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,137 bicycles with this information
Coverage: 84.2% of the class

Highest gear

98.6 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,137 bicycles with this information
Coverage: 84.2% 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

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.6 km/h
Highest gear: 37.8 km/h

Total gear range 500%

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: 19.7–98.6 gear inches
Class reference (p10–p90): 16.9–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2021
Lowest gear: 1137 bicycles with this information, 84.2% of the class
Highest gear: 1137 bicycles with this information, 84.2% 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 EVO TR 1 29	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
Frame
Intended fit	Unisex	womens	womens	Unisex	Unisex	Unisex
Bicycle weight	23.8 kg	24.2 kg	25.9 kg	22.8 kg	22.8 kg	26.2 kg
Suspension
Suspension configuration	Full suspension	Full suspension	Full suspension	Hardtail	Hardtail	Full suspension
Front travel	120 mm	120 mm	120 mm	120 mm	120 mm	140 mm
Rear travel	120 mm	120 mm	120 mm	Not informed	Not informed	150 mm
Drivetrain
Smallest chainring	34	Not informed	Not informed	Not informed	Not informed	Not informed
Largest chainring	34	Not informed	Not informed	Not informed	Not informed	Not informed
Rear sprockets	12	12	Not informed	10	10	12
Smallest sprocket	10	11	10	11	11	10
Largest sprocket	50	50	51	46	46	50
Lowest gear	19.7 in	Not informed	Not informed	Not informed	Not informed	Not informed
Highest gear	98.6 in	Not informed	Not informed	Not informed	Not informed	Not informed
Cockpit
Seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost
Electric bicycle systems
Battery capacity	500 Wh	500 Wh	500 Wh	625 Wh	500 Wh	500 Wh
Other specifications
Fork spring	Air	Air	Not informed	Air	Air	Air
Suspension	Full suspension	Full suspension	Full suspension	Hardtail	Hardtail	Full suspension
Wheel size	29″	27.5″	27.5″	27.5″	29″	27.5″