Trenga GLG 4.0

Name: Trenga GLG 4.0
Brand: Trenga

2026 RoadGravel Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €1,299 Last known price
Travel: / 89 mm Fork / rear shock
Wheels: 700c
Drivetrain: 2 × 8 34–50t / 11–34t
Gear range: 455%
Weight: 11.1 kg 24.5 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

50cm
58cm
62cm

The manufacturer did not publish rider heights for these sizes.

Components

14 of 16 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

Aluminium 6061 TFW, bottom bracket: Press-Fit 89 mm, axle mount: thru-axle 12x142 mm, tire clearance: 35 mm with fenders/40 mm without, cable routing: partially integrated, brakes: flat mount, fender and rack mounts, front derailleur mount: clamp Not identified

Suspension

1 part

Fork

Aluminium TDE 3.5, axle mount: 12x100 mm thru-axle, steerer tube: 1 1/8" to 1.5", disc brake mount: flat mount, lowrider eyelets, max. tire width: 37 mm with fenders/40 mm without Not identified

Drivetrain

6 parts

Bottom bracket
- Shimano SM-BB72-41B
SM-BB72-41B
Cassette
- Shimano CS-HG41
CS-HG41
Chain
- Shimano CN-HG71
CN-HG71
Crankset
- Shimano Claris FC-R2000 8 speeds
FC-R2000
Front derailleur
- Shimano Claris FD-R2000 2 speeds
FD-R2000
Shifters
- Shimano Claris
RD-R2000

Brakes

1 part

Brakes
- Shimano

Wheels and tires

3 parts

Cockpit and contact points

4 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 58cm

Table

Reach 410mm

Stack 615mm

Wheelbase 1066mm

Head angle 73.0°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c 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	392	410	415
Stackmm	570	615	644
Top tube lengthmm	555	600	615
Seat tube lengthmm	500	580	620
Head tube lengthmm	150	190	220
Head tube angle	71°	73°	73°
Seat tube angle	74°	73°	72.3°
Chainstay lengthmm	440	440	440
Wheelbasemm	1052	1066	1075
Front centermm	621	635	644
Bottom bracket dropmm	68	68	68
Bottom bracket heightmm	281	281	281
Fork rakemm	50	50	50
Trailmm	67	52	58
Stack/reach ratio	1.45	1.50	1.55

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
Fork material: Aluminum
Bicycle weight: 11.1 kg

24.5 lb
Weight limit: 125 kg

275.6 lb

Suspension

Suspension configuration: Full suspension
Rear travel: 89 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 29.0 in
Highest gear: 131.8 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 clearance: Maximum tire width: 35c
Tire width: 40c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

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

Lowest gear

29.0 gear inches

This value is above the central range for this class.

Cohort: Road / Gravel Model year: 2026
Sample: 1,455 bicycles with this information
Coverage: 73.2% of the class

Highest gear

131.8 gear inches

This value is above the central range for this class.

Cohort: Road / Gravel Model year: 2026
Sample: 1,455 bicycles with this information
Coverage: 73.2% of the class

Shifting

Mechanical

706 of 1,980 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2026
Sample: 1,980 bicycles with this information
Coverage: 99.6% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.1 km/h
Highest gear: 50.5 km/h

Total gear range 455%

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: 29.0–131.8 gear inches
Class reference (p10–p90): 22.8–127.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2026
Lowest gear: 1455 bicycles with this information, 73.2% of the class
Highest gear: 1455 bicycles with this information, 73.2% 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 2026 builds
Specification	This bicycle Trenga GLG 4.0	Trenga GLG 5.0	Trenga GLG 7.0	Trenga GLG 9.0	Trenga GLG EQ
Frame
Fork material	Aluminum	Carbon	Carbon	Carbon	Carbon
Bicycle weight	11.1 kg	11.2 kg	10.9 kg	10.5 kg	12.7 kg
Weight limit	125 kg	130 kg	130 kg	130 kg	130 kg
Suspension
Suspension configuration	Full suspension	Rigid	Rigid	Rigid	Rigid
Rear travel	89 mm	Not informed	Not informed	Not informed	Not informed
Drivetrain
Front chainrings	2	2	2	1	2
Smallest chainring	34	34	30	40	31
Largest chainring	50	50	46	40	48
Rear sprockets	8	10	12	12	12
Smallest sprocket	11	11	11	10	11
Largest sprocket	34	39	36	51	36
Lowest gear	29.0 in	25.3 in	24.2 in	22.8 in	25.0 in
Highest gear	131.8 in	131.8 in	121.3 in	116.0 in	126.6 in
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Electronic	Mechanical
Other specifications
Bottom bracket standard	BB86/BB92	BSA	BSA	BSA	BSA
Suspension	Full suspension	Rigid	Rigid	Rigid	Rigid
Tire clearance	Maximum tire width: 35c	Maximum tire width: 45c	Maximum tire width: 45c	Maximum tire width: 45c	Maximum tire width: 45c
Tire width	40c	40c	40c	40c	35c