Merida BIG Trail 300

2026 MountainTrail Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £1,100 Last known price
Fork travel: 140 mm
Wheels: 29″
Gear range: 418%
Weight: 14.8 kg 32.6 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

X-Short
Short
Mid
Long
X-Long

The manufacturer did not publish rider heights for these sizes.

Components

18 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

BIG.TRAIL TFS II, material: aluminium, 29x2.4" max. wheelsize, 148x12mm axle standard, BSA bottom bracket standard Not identified

Suspension

1 part

Fork
- SR Suntour XCR34

Drivetrain

6 parts

Bottom bracket
- Shimano BB-UN101
BB-UN101
Cassette
- SunRace
CS-U980
Chain
- KMC XGlide 11 speeds
Crankset
- Shimano FC-UT400-1 11 speeds
FC-UT400UT-400
Rear derailleur
- Shimano Cues RD-U4000 9 speeds
RD-U4000
Shifters
- Shimano Cues SL-U4000
SL-U4000

Brakes

2 parts

Brakes
- Shimano BR-MT200
BR-MT200
Disc rotors
- Shimano SM-RT10
SM-RT10

Wheels and tires

4 parts

Cockpit and contact points

5 parts

Sizes and geometry

5 sizes Open in the geometry plotter

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

Size Mid

Table

Reach 455mm

Stack 645mm

Wheelbase 1214mm

Head angle 64.0°

Seat angle 76.5°

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 Reach Stack

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	415	435	455	480	505
Stackmm	627	636	645	654	663
Top tube lengthmm	559	581	603	630	657
Seat tube lengthmm	385	400	420	445	475
Head tube lengthmm	90	100	110	120	130
Head tube angle	64°	64°	64°	64°	64°
Seat tube angle	76.5°	76.5°	76.5°	76.5°	76.5°
Chainstay lengthmm	435	435	435	435	435
Wheelbasemm	1165	1189	1214	1243	1272
Front centermm	739	763	788	817	846
Bottom bracket dropmm	70	70	70	70	70
Bottom bracket heightmm	304	304	304	304	304
Standover heightmm	715	721	724	726	729
Fork rakemm	44	44	44	44	44
Trailmm	134	134	134	134	134
Stack/reach ratio	1.51	1.46	1.42	1.36	1.31

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: 14.8 kg

32.6 lb

Suspension

Suspension configuration: Hardtail
Front travel: 140 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Smallest sprocket: 11
Largest sprocket: 46
Lowest gear: 20.2 in
Highest gear: 84.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Fork spring: Air
Tire width: 2.4″
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

140 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2026
Sample: 1,644 bicycles with this information
Coverage: 96.3% of the class

Lowest gear

20.2 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2026
Sample: 1,229 bicycles with this information
Coverage: 72.0% of the class

Highest gear

84.4 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2026
Sample: 1,229 bicycles with this information
Coverage: 72.0% of the class

Shifting

Mechanical

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

Cohort: Mountain / Trail Model year: 2026
Sample: 1,706 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.7 km/h
Highest gear: 32.3 km/h

Total gear range 418%

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: 20.2–84.4 gear inches
Class reference (p10–p90): 17.1–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2026
Lowest gear: 1229 bicycles with this information, 72.0% of the class
Highest gear: 1229 bicycles with this information, 72.0% 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 2026 builds
Specification	This bicycle Merida BIG Trail 300	Merida BIG Trail 500	Merida BIG Trail 600
Frame
Bicycle weight	14.8 kg	14.5 kg	14.5 kg
Drivetrain
Smallest sprocket	11	11	10
Largest sprocket	46	48	51
Lowest gear	20.2 in	19.3 in	18.2 in
Highest gear	84.4 in	84.4 in	92.8 in
Rear sprockets	Not informed	10	12
Other specifications
Tire width	2.4″	2.5″	2.5″