Breezer Thunder 29 Sport

2012 MountainCross-country Manufacturer page

Fork travel: 100 mm
Wheels: 29″
Drivetrain: 3 × 9 22–44t / 11–34t
Gear range: 618%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

12 of 19 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

Breezer D'Fusion hydroformed custom-butted 6066 aluminum, integrated head tube, BB92 Press-Fit bottom bracket Not identified

Suspension

1 part

Fork
- SR Suntour

Drivetrain

7 parts

Bottom bracket
- Shimano SM-BB92
SM-BB92
Cassette
- Shimano CS-HG20 11–34t
CS-HG20HG-20
Chain
- Shimano CN-HG53
CN-HG53HG-53
Crankset
- Shimano FC-M542 44t
FC-M542
Front derailleur
- Shimano FD-M390
FD-M390
Rear derailleur
- Shimano RD-M430-SGS
RD-M430-SGS
Shifters
- Shimano Alivio ST-M430
ST-M430

Brakes

2 parts

Wheels and tires

2 parts

Rims
- Breezer
Tires
- WTB

Cockpit and contact points

6 parts

Handlebar

Oval M250, 6061 Aluminum, 31.8 - Flat Bar, 710mm wide, 9° sweep Not identified
Headset

Oval 1 1/8", Fully Integrated, Semi-Cartridge Bearings Not identified
Pedals

NA Not identified
Saddle

Oval R300, Satin Steel Rails Not identified
Seatpost

Oval M200 TBT, 6061 Aluminum, 27.2x400mm Not identified
Stem

Oval M200 RBT, 6061 Aluminum, 31.8, 6°/84° Not identified

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Geometry diagram unavailable

The drawing needs reach and stack, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Top tube lengthmm	590	605	615	630
Seat tube lengthmm	430	470	500	530
Head tube lengthmm	100	110	120	130
Head tube angle	71°	71°	71°	71°
Seat tube angle	72°	72°	72°	72°
Chainstay lengthmm	439	439	439	439
Wheelbasemm	1061.7	1076.7	1086.7	1101.7
Front centermm	628.5	643.5	653.4	668.4
Bottom bracket dropmm	69	69	69	69
Bottom bracket heightmm	305	305	305	305
Standover heightmm	786.8	810.4	829.2	848
Fork rakemm	45	45	45	45
Suspension and parts
Crank lengthmm	175	175	175	175
Stem lengthmm	90	100	100	110

Not published by the manufacturer: Reach, Stack, Trail, Stack/reach ratio, Front travel, Rear travel, Handlebar width, 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: 3
Smallest chainring: 22
Largest chainring: 44
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 18.8 in
Highest gear: 116.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BB86/BB92
Tire width: 2.1″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

3 measures

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

Front travel

100 mm

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2012
Sample: 238 bicycles with this information
Coverage: 75.3% of the class

Lowest gear

18.8 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2012
Sample: 294 bicycles with this information
Coverage: 93.0% of the class

Highest gear

116.0 gear inches

This value is above the central range for this class.

Cohort: Mountain / Cross-country Model year: 2012
Sample: 294 bicycles with this information
Coverage: 93.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.2 km/h
Highest gear: 44.4 km/h

Total gear range 618%

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: 18.8–116.0 gear inches
Class reference (p10–p90): 16.8–116.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2012
Lowest gear: 294 bicycles with this information, 93.0% of the class
Highest gear: 294 bicycles with this information, 93.0% 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 2012 builds

Differences across 2012 builds
Specification	This bicycle Breezer Thunder 29 Sport	Breezer Thunder	Breezer Thunder 29 Comp	Breezer Thunder Comp	Breezer Thunder Sport
Frame
Fork material	Aluminum	Not informed	Aluminum	Aluminum	Aluminum
Drivetrain
Smallest chainring	22	22	24	24	22
Largest chainring	44	44	42	42	44
Rear sprockets	9	9	10	10	9
Largest sprocket	34	34	36	36	34
Lowest gear	18.8 in	16.8 in	19.3 in	17.3 in	16.8 in
Highest gear	116.0 in	104.0 in	110.7 in	99.3 in	104.0 in
Brakes
Brake type	Hydraulic disc	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Other specifications
Bottom bracket standard	BB86/BB92	Not informed	BB86/BB92	Not informed	Not informed
Tire width	2.1″	2.1″	2.2″	2.1″	2.1″
Wheel size	29″	26″	29″	26″	26″
Fork spring	Not informed	Coil	Air	Not informed	Not informed