Trek Marlin 5 Gen 2

Name: Trek Marlin 5 Gen 2
Brand: Trek
Price: 669.00 EUR

2023 MountainCross-country Manufacturer page

Trek Marlin 5 Gen 2, color Radioactive Red

Price: Not published

Prices shown first for United States
Germany: €669 Brand's site · 2026-11-11
United Kingdom: £620 Brand's site · 2026-11-11
Fork travel: 100 mm
Wheels: 27.5″
Drivetrain: 2 × 8 22–36t / 12–32t
Gear range: 436%
Weight: 13.97 kg 30.8 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

15.5"

The manufacturer did not publish rider heights for these sizes.

Components

16 of 20 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

Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135x5 mm QR - XXS , XS , S : Alpha Silver Aluminium, curved top tube, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5 mm QR; M , ML , L , XL , XXL : Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135x5 mm QR Not identified

Suspension

1 part

Fork
- SR Suntour XCT30

Drivetrain

7 parts

Bottom bracket

Sealed cartridge, 73mm Not identified
Cassette
- Shimano 12–32t
Chain
- KMC Z8.3 8 speeds
Crankset
- Shimano Altus FC-M315 8 speeds 36/22t
FC-M315TM-CY10
Front derailleur
- Shimano Altus FD-M315 2 speeds
FD-M315
Rear derailleur
- Shimano Altus RD-M310
RD-M310
Shifters
- Shimano Altus SL-M315-2L 2 speeds
SL-M315-2L

Brakes

1 part

Brakes
- Tektro HD-M275 / HD-M276
HD-M275HD-M276

Wheels and tires

5 parts

Front hub
- Formula DC-20
DC-20
Rear hub
- Formula DC-22
DC-22
Rims
- Bontrager
Spokes

14 g stainless steel, black Not identified
Tires
- Bontrager

Cockpit and contact points

5 parts

Handlebar
- Bontrager
Headset

Semi-integrated, 1-1/8" Not identified
Saddle
- Bontrager
Seatpost
- Bontrager
Stem
- Bontrager

Sizes and geometry

1 size Open in the geometry plotter

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

Size 15.5"

Table

Reach 385mm

Stack 574mm

Wheelbase 1066mm

Head angle 69.3°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Reachmm	385
Stackmm	574
Top tube lengthmm	555
Seat tube lengthmm	368
Head tube lengthmm	90
Head tube angle	69.3°
Seat tube angle	73.5°
Chainstay lengthmm	438
Wheelbasemm	1066
Front centermm	632
Bottom bracket dropmm	48
Bottom bracket heightmm	307
Standover heightmm	686
Fork rakemm	44
Trailmm	88
Stack/reach ratio	1.49

Not published by the manufacturer: 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: 13.97 kg

30.8 lb
Weight limit: 136 kg

299.8 lb

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 22
Largest chainring: 36
Rear sprockets: 8
Smallest sprocket: 12
Largest sprocket: 32
Lowest gear: 18.9 in
Highest gear: 82.5 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Tire clearance: Maximum tire width: 2.2″
Tire width: 2.2″
Wheel material: Aluminum
Wheel size: 27.5″

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: 2023
Sample: 1,907 bicycles with this information
Coverage: 95.2% of the class

Lowest gear

18.9 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2023
Sample: 1,578 bicycles with this information
Coverage: 78.8% of the class

Highest gear

82.5 gear inches

This value is below the central range for this class.

Cohort: Mountain / Cross-country Model year: 2023
Sample: 1,578 bicycles with this information
Coverage: 78.8% of the class

Shifting

Mechanical

223 of 2,002 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2023
Sample: 2,002 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.2 km/h
Highest gear: 31.6 km/h

Total gear range 436%

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: 18.9–82.5 gear inches
Class reference (p10–p90): 17.7–101.5 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2023
Lowest gear: 1578 bicycles with this information, 78.8% of the class
Highest gear: 1578 bicycles with this information, 78.8% 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 2023 builds

Differences across 2023 builds
Specification	This bicycle Trek Marlin 5 Gen 2	Trek Marlin 4	Trek Marlin 4 Gen 2	Trek Marlin 6 Gen 2	Trek Marlin 6 Gen 3	Trek Marlin 7 Gen 2
Frame
Bicycle weight	13.97 kg	14.4 kg	14.4 kg	14.11 kg	14.8 kg	13.47 kg
Suspension
Front travel	100 mm	80 mm	100 mm	100 mm	100 mm	100 mm
Drivetrain
Front chainrings	2	3	3	1	1	1
Smallest chainring	22	24	24	30	30	28
Largest chainring	36	42	42	30	30	28
Rear sprockets	8	7	7	10	10	10
Smallest sprocket	12	14	14	11	11	11
Largest sprocket	32	28	28	46	46	46
Lowest gear	18.9 in	24.9 in	24.9 in	18.9 in	18.9 in	17.7 in
Highest gear	82.5 in	87.0 in	87.0 in	79.1 in	79.1 in	73.8 in
Brakes
Brake type	Hydraulic disc	Mechanical disc	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Other specifications
Tire clearance	Maximum tire width: 2.2″	Maximum tire width: 2.2″	Maximum tire width: 2.2″	Maximum tire width: 2.2″	Maximum tire width: 2.4″	Maximum tire width: 2.2″
Tire width	2.2″	2″	2″	2.2″	2.4″	2.2″
Wheel size	27.5″	27.5″ / 29″	27.5″ / 29″	27.5″ / 29″	29″	27.5″ / 29″
Bottom bracket standard	Not informed	BSA	BSA	Not informed	BSA	BSA