Trenga KSM 7.9

2024 MountainCross-country Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €2,899 Last known price
Travel: 100 / 92 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 34t / 10–51t
Gear range: 510%
Weight: 10.7 kg 23.6 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–170
MD 168–179
LG 176–187

Components

16 of 17 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

Full carbon monocoque, bottom bracket: press-fit 92 mm, axle mount: thru axle 12x148 mm, tire clearance: 60 mm, cable routing: partially integrated, brake: post mount 160 mm Not identified

Suspension

1 part

Fork
- RockShox Reba RL

Drivetrain

7 parts

Brakes

1 part

Brakes
- Shimano Deore XT
- Shimano Deore XT BL-M8100
BL-M8100BR-M8100

Wheels and tires

3 parts

Cockpit and contact points

4 parts

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 434mm

Stack 636mm

Wheelbase 1124mm

Head angle 70.0°

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 Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	415	434	451
Stackmm	622	636	646
Top tube lengthmm	600	630	650
Seat tube lengthmm	420	480	530
Head tube lengthmm	105	120	130
Head tube angle	70°	70°	70°
Seat tube angle	73.5°	73°	72.9°
Chainstay lengthmm	435	435	435
Wheelbasemm	1100	1124	1144
Front centermm	672	696	716
Bottom bracket dropmm	60	60	60
Bottom bracket heightmm	314	314	314
Fork rakemm	51	51	51
Trailmm	86	86	87
Stack/reach ratio	1.50	1.47	1.43

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: Carbon
Bicycle weight: 10.7 kg

23.6 lb
Weight limit: 110 kg

242.5 lb

Suspension

Suspension configuration: Full suspension
Front travel: 100 mm
Rear travel: 92 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 19.3 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

Additional specifications

Bottom bracket standard: BB86/BB92
Fork spring: Air
Tire width: 2.25″
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

100 mm

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2024
Sample: 1,755 bicycles with this information
Coverage: 93.6% of the class

Lowest gear

19.3 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2024
Sample: 1,384 bicycles with this information
Coverage: 73.8% of the class

Highest gear

98.6 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2024
Sample: 1,384 bicycles with this information
Coverage: 73.8% of the class

Shifting

Mechanical

229 of 1,871 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2024
Sample: 1,871 bicycles with this information
Coverage: 99.8% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.4 km/h
Highest gear: 37.8 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: 19.3–98.6 gear inches
Class reference (p10–p90): 17.7–100.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2024
Lowest gear: 1384 bicycles with this information, 73.8% of the class
Highest gear: 1384 bicycles with this information, 73.8% 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 2024 builds

Differences across 2024 builds
Specification	This bicycle Trenga KSM 7.9	Trenga KSM 5.9
Frame
Bicycle weight	10.7 kg	11.9 kg
Drivetrain
Front chainrings	1	Not informed
Smallest chainring	34	Not informed
Largest chainring	34	Not informed
Lowest gear	19.3 in	Not informed
Highest gear	98.6 in	Not informed