2025 Merida Big Seven 20 Mountain Bike

The 2025 Merida Big Seven 20 Mountain Bike is a Taiwanese-made entry-level aluminium hardtail with 27.5" wheels and a single chainring setup using the newly released Shimano ESSA drivetrain. It features a more upright and comfortable riding position compared to race-focused hardtails, which reduces strain on the lower back and improves visibility. The 100 mm SR Suntour suspension fork and hydraulic disc brakes further enhance control and comfort.

This model uses full Shimano components throughout, ensuring reliable performance. Mountain biking, being one of the most varied and equipment-demanding cycling disciplines, benefits from the precision of hardtail frames like this. While full suspension bikes offer impressive riding dynamics, the classic hardtail, like the Big Nine, remains a versatile and pure tool for the job.

Merida’s BIG.NINE range, which includes both carbon and aluminium frames, boasts modern geometry for increased standover clearance and handling stability. The more relaxed geometry of the BIG.NINE TFS and SPEED versions is designed for a comfortable, upright riding position. With over half a century of bike production and manufacturing expertise, Merida’s Taiwanese craftsmanship is evident in every detail of this bike.

This model comes fully assembled and includes a free first service. It’s equipped with:

Double-butted aluminium frame

Less aggressive, upright geometry for control and comfort

SR Suntour 100 mm travel suspension fork with lockout

Shimano 8-speed drivetrain with single chainring

Tektro hydraulic disc brakes

Internal cable routing

Specifications:

Brakes: Tektro HD-M275

Frame: BIG.SEVEN TFS IV

Frame size: M, L, XL, XXL

Fork: Suntour XCT30 HLO

Color: BLACK (GREY)

Rear derailleur: Shimano ESSA RD-U2000-8

Rotors: Shimano RT10

Rear shifter: Shimano ESSA SL-315-8R

Front and rear brakes: Tektro HD-M275

Chain: KMC Z8.3

Crank: Shimano ESSA FC-U2001 32 teeth

Hubs: Shimano TX505 (front and rear)

Rim: MERIDA CC

Freewheel: Shimano CS-HG400-8

Tires: MERIDA K1080 (front and rear)

Spokes: Black steel

Handlebar, stem, seat post: MERIDA CC

Saddle: MERIDA Sport comfort