Merida BIG Seven 20

2026 MountainTrail Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £700 Last known price
Fork travel: 120 mm
Wheels: 27.5″
Drivetrain: 1 × 8 32t / 11–45t
Gear range: 409%
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

19 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

BIG.SEVEN TFS V, material: aluminum, 27.5 wheelsize, 135x9mm axle standard, BSA bottom bracket standard, Smooth welding Not identified

Suspension

1 part

Fork
- SR Suntour XCM32

Drivetrain

6 parts

Bottom bracket
- Shimano BB-UN101
BB-UN101
Cassette
- Shimano CS-HG300-8 8 speeds
CS-HG300
Chain
- KMC Z8.3 8 speeds
Crankset
- Prowheel
Rear derailleur
- Shimano Essa RD-U2000 8 speeds
RD-U2000
Shifters
- Shimano Essa
SL-315-8R

Brakes

2 parts

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

Wheels and tires

4 parts

Front hub
- Shimano HB-TX505
HB-TX505
Rear hub
- Shimano FH-TX505 11 speeds
FH-TX505
Rims
- Merida
Tires
- Kenda Booster

Cockpit and contact points

6 parts

Handlebar
- Merida
Headset
- FSA
Pedals
- VP VPE-536 BMX bike pedal
VPE-536
Saddle
- Merida
Seatpost
- Merida
Stem
- Merida

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 XS

Table

Reach 370mm

Stack 592mm

Wheelbase 1091mm

Head angle 67.0°

Seat angle 74.0°

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 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	350	370	390
Stackmm	582	592	601
Top tube lengthmm	516	539	561
Seat tube lengthmm	320	340	365
Head tube lengthmm	95	105	115
Head tube angle	67°	67°	67°
Seat tube angle	74°	74°	74°
Chainstay lengthmm	442	442	442
Wheelbasemm	1067	1091	1114
Front centermm	628	652	675
Bottom bracket dropmm	37	37	37
Bottom bracket heightmm	318	318	318
Standover heightmm	651	671	694
Fork rakemm	42	42	42
Trailmm	105	106	106
Stack/reach ratio	1.66	1.60	1.54

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

Suspension

Suspension configuration: Hardtail
Front travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 45
Lowest gear: 19.6 in
Highest gear: 80.0 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: BSA
Fork spring: Coil
Tire width: 2.4″
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

120 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

19.6 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

80.0 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: 7.5 km/h
Highest gear: 30.6 km/h

Total gear range 409%

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: 19.6–80.0 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 Seven 20	Merida BIG Seven 15	Merida BIG Seven 40	Merida BIG Seven 60	Merida BIG Seven 80
Suspension
Front travel	120 mm	100 mm	120 mm	120 mm	120 mm
Drivetrain
Front chainrings	1	2	1	2	1
Smallest chainring	32	22	32	22	32
Largest chainring	32	36	32	36	32
Rear sprockets	8	7	9	9	9
Smallest sprocket	11	12	11	11	11
Largest sprocket	45	32	46	36	46
Lowest gear	19.6 in	18.9 in	19.1 in	16.8 in	19.1 in
Highest gear	80.0 in	82.5 in	80.0 in	90.0 in	80.0 in
Brakes
Brake type	Hydraulic disc	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Other specifications
Fork spring	Coil	Coil	Air	Air	Air
Tire width	2.4″	2.2″	2.4″	2.4″	2.4″