Breezer Thunder 29 Expert

Name: Breezer Thunder 29 Expert
Brand: Breezer

2017 MountainTrail Manufacturer page

Fork travel: 120 mm
Wheels: 29″, 27.5″
Drivetrain: 2 × 10 22–36t / 11–36t
Gear range: 536%
Weight: 12.73 kg 28.1 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

14.5"
14.5"
16"
16"
17.5"
17.5"
18.5"
18.5"
20.5"
20.5"

The manufacturer did not publish rider heights for these sizes.

Components

18 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

Breezer D'Fusion Hydroformed Custom-Butted 6066 Aluminum, Tapered Head Tube, BB92 Press-Fit Bottom Bracket, Boost 148X12 Spacing with Thru-Axle Not identified

Suspension

2 parts

Fork
- RockShox Recon
Rear shock

na Not identified

Drivetrain

7 parts

Bottom bracket
- Shimano SM-BB92
SM-BB92
Cassette
- Shimano CS-HG50-10 10 speeds 11–36t
CS-HG50-10HG-50
Chain
- KMC X10 10 speeds
Crankset
- Shimano FC-M617 22t
FC-M617
Front derailleur
- Shimano Deore
Rear derailleur
- Shimano SLX
Shifters
- Shimano Deore

Brakes

2 parts

Brake levers
- Shimano BL-M396
BL-M396
Brakes
- Shimano BR-M395
BR-M395

Wheels and tires

2 parts

Rims
- WTB
Tires
- WTB

Cockpit and contact points

7 parts

Sizes and geometry

10 sizes Open in the geometry plotter

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

Size 17.5"

Table

Geometry diagram unavailable

The drawing needs bottom bracket drop / Bottom bracket height, which the manufacturer did not publish. Available facts remain in the table.

Size Reach Stack

Complete manufacturer geometry table 10 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	382	382	402	402	419	419	431	431	448	448
Stackmm	631	631	626	626	626	626	640	640	636	636
Top tube lengthmm	575	575	593	593	610	610	626	626	648	648
Seat tube lengthmm	370	370	410	410	445	445	475	475	520	520
Head tube lengthmm	100	100	100	100	100	100	115	115	130	130
Head tube angle	69°	69°	69°	69°	69°	69°	69°	69°	69°	69°
Seat tube angle	73°	73°	73°	73°	73°	73°	73°	73°	73°	73°
Chainstay lengthmm	438	438	438	438	438	438	438	438	438	438
Wheelbasemm	1092	1092	1112	1112	1129	1129	1145	1145	1168	1168
Standover heightmm	736.5	736.5	763.5	763.5	785.5	785.5	810	810	842	842
Fork rakemm	51	51	51	51	51	51	51	51	51	51
Stack/reach ratio	1.65	1.65	1.56	1.56	1.49	1.49	1.49	1.49	1.42	1.42
Suspension and parts
Crank lengthmm	170	170	175	175	175	175	175	175	175	175
Handlebar widthmm	710	710	710	710	710	710	710	710	710	710
Stem lengthmm	70	70	70	70	80	80	80	80	90	90

Not published by the manufacturer: Front center, Bottom bracket drop, Bottom bracket height, Trail, Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 12.73 kg

28.1 lb

Suspension

Suspension configuration: Hardtail
Front travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 22
Largest chainring: 36
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 16.8 in
Highest gear: 90.0 in

Wheels and brakes

Wheel configuration: Wheel options
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BB86/BB92
Fork spring: Air
Tire width: 2.25″
Wheel material: Aluminum
Wheel size: 29″, 27.5″

Technical analysis

3 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: 2017
Sample: 429 bicycles with this information
Coverage: 95.7% of the class

Lowest gear

16.8 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2017
Sample: 416 bicycles with this information
Coverage: 92.8% of the class

Highest gear

90.0 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2017
Sample: 416 bicycles with this information
Coverage: 92.8% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.4 km/h
Highest gear: 34.5 km/h

Total gear range 535%

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: 16.8–90.0 gear inches
Class reference (p10–p90): 16.8–94.9 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2017
Lowest gear: 416 bicycles with this information, 92.8% of the class
Highest gear: 416 bicycles with this information, 92.8% 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 2017 builds
Specification	This bicycle Breezer Thunder 29 Expert	Breezer Thunder 27.5+ Pro (US-INTL)	Breezer Thunder 27.5+ Team (US-INTL)	Breezer Thunder 29 Pro (US-INTL)	Breezer Thunder 29 Team (US-INTL)
Frame
Bicycle weight	12.73 kg	12.28 kg	11.87 kg	12.28 kg	11.87 kg
Drivetrain
Front chainrings	2	2	1	2	1
Smallest chainring	22	26	32	26	32
Largest chainring	36	36	32	36	32
Rear sprockets	10	11	11	11	11
Largest sprocket	36	40	42	40	42
Lowest gear	16.8 in	17.9 in	21.0 in	17.9 in	21.0 in
Highest gear	90.0 in	90.0 in	80.0 in	90.0 in	80.0 in
Other specifications
Fork spring	Air	Air	Not informed	Air	Not informed
Tire width	2.25″	2.8″	2.8″	2.25″	2.25″

Changes since 2016
Specification	2016 Breezer Thunder 29 Expert	This bicycle Breezer Thunder 29 Expert
Frame
Bicycle weight	12.84 kg	12.73 kg
Suspension
Front travel	100 mm	120 mm
Drivetrain
Smallest chainring	24	22
Largest chainring	38	36
Lowest gear	19.3 in	16.8 in
Highest gear	100.2 in	90.0 in
Wheels
Wheel configuration	Same size	Wheel options
Other specifications
Wheel size	29″	29″ / 27.5″