Merida has more than 50 years of experience building tough aluminium hardtails, and the Big Seven 15 brings that know-how to a smaller-framed 27.5" bike, ideal for shorter riders and younger teens getting into off-road riding.
This latest generation follows modern trends with a longer reach and shorter stem, a steeper seat angle and a slacker head angle for more off-road capability without compromising everyday usability. The updated TFS aluminium frame has full internal cable routing, a tapered head tube for future upgrades, inboard disc brake mounts that protect the brake and maximise stopping power, dropper post compatibility and clearance for 2.4" tyres.
The build is simple and dependable, with a 100mm SR Suntour coil fork, a Shimano 2x7-speed drivetrain and Shimano mechanical disc brakes, plus size-tuned Merida finishing kit.
Features
- Updated TFS V aluminium frame with clearance for 2.4" tyres
- Trail-ready geometry for confident off-road handling
- 100mm SR Suntour XCE28 coil suspension fork
- Shimano mechanical disc brakes with 160mm rotors
- Shimano 2x7-speed drivetrain with 12-32T cassette
- 27.5" wheels with Kenda 2.2" tyres
- Size-tuned Merida finishing kit, mudguard and kickstand mounts
Sizing
- XXS: under 140cm
- XS: 140cm - 156cm
- S: 157cm - 173cm
Specifications
DisciplineTrail
MaterialAluminium
Front Travel100mm
Rear TravelHardtail
Wheel Size27.5"
WarrantyLifetime
Frame - TFS V, 6061 aluminium, double butted and technoformed. Tapered head tube. Chainstay mounted disc brake. Internal cable routing. Mudguard and kickstand mounts. BSA threaded BB. 135x9mm axle. Max tyre size 27.5x2.4"
Fork - SR Suntour XCE28; Coil; 100mm travel; 27x2.25" max tyre size
Headset - FSA NO.55R/57SC/57B
Stem - Merida Comp CC; material: aluminium; 31.8mm diameter; 7 degree rise
Handlebar - Merida CC; material: aluminium; 15mm rise; (XXS-XS) 700mm wide, S 720mm wide
Grips - Merida EC
Brake type - Mechanical disc
Front brake - Shimano BR-M375; mechanical disc brake with Shimano RT10; 160mm
Rear brake - Shimano BR-M375; mechanical disc brake with Shimano RT10; 160mm
Front tyre - Kenda K1080; 27.5x2.2"
Rear tyre - Kenda K1080; 27.5x2.2"
Wheel size - 27.5"
Rims - Merida Comp CC; 20mm inner rim width; material: aluminium
Spokes - Black steel
Front hub - Shimano TX505; 100x9mm; 32 spoke; Centerlock
Rear hub - Shimano TX505; 135x9mm; 32 spoke; Centerlock
Speeds - 14
Front derailleur - Shimano Altus FD-M315
Rear derailleur - Shimano Tourney TY300
Shift levers - Front: Shimano Altus EF-500-2L, Rear: Shimano Altus EF-500-7R
Chain - KMC Z7
Cassette - Shimano CS-HG210-7; 12-32 teeth; 7 speed
Chainset - Prowheel TM-CY10; 36-22 tooth; material: aluminium; crank length: 165mm
Bottom bracket - FSA TH-7420ST; 73-127.5mm
Pedals - VP VPE-891
Saddle - Merida Sport
Seatpost - Merida CC; material: aluminium; 30.9mm diameter; 15mm layback
Big Seven 15 2026
- Trail
- Hardtail · 100mm fork
- Alloy frame
Order within [time] for delivery by [date]
90 Day Returns
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Pro builtBuilt and safety-checked by our mechanics before it leaves us
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Free UK mainland courier deliveryNorthern Ireland: £60
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Collect in CanterburyPick up and get set up at our store
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Talk to a riderChat with our team
Merida has more than 50 years of experience building tough aluminium hardtails, and the Big Seven 15 brings that know-how to a smaller-framed 27.5" bike, ideal for shorter riders and younger teens getting into off-road riding.
This latest generation follows modern trends with a longer reach and shorter stem, a steeper seat angle and a slacker head angle for more off-road capability without compromising everyday usability. The updated TFS aluminium frame has full internal cable routing, a tapered head tube for future upgrades, inboard disc brake mounts that protect the brake and maximise stopping power, dropper post compatibility and clearance for 2.4" tyres.
The build is simple and dependable, with a 100mm SR Suntour coil fork, a Shimano 2x7-speed drivetrain and Shimano mechanical disc brakes, plus size-tuned Merida finishing kit.
Features
- Updated TFS V aluminium frame with clearance for 2.4" tyres
- Trail-ready geometry for confident off-road handling
- 100mm SR Suntour XCE28 coil suspension fork
- Shimano mechanical disc brakes with 160mm rotors
- Shimano 2x7-speed drivetrain with 12-32T cassette
- 27.5" wheels with Kenda 2.2" tyres
- Size-tuned Merida finishing kit, mudguard and kickstand mounts
Sizing
- XXS: under 140cm
- XS: 140cm - 156cm
- S: 157cm - 173cm
Specifications
DisciplineTrail
MaterialAluminium
Front Travel100mm
Rear TravelHardtail
Wheel Size27.5"
WarrantyLifetime
Frame - TFS V, 6061 aluminium, double butted and technoformed. Tapered head tube. Chainstay mounted disc brake. Internal cable routing. Mudguard and kickstand mounts. BSA threaded BB. 135x9mm axle. Max tyre size 27.5x2.4"
Fork - SR Suntour XCE28; Coil; 100mm travel; 27x2.25" max tyre size
Headset - FSA NO.55R/57SC/57B
Stem - Merida Comp CC; material: aluminium; 31.8mm diameter; 7 degree rise
Handlebar - Merida CC; material: aluminium; 15mm rise; (XXS-XS) 700mm wide, S 720mm wide
Grips - Merida EC
Brake type - Mechanical disc
Front brake - Shimano BR-M375; mechanical disc brake with Shimano RT10; 160mm
Rear brake - Shimano BR-M375; mechanical disc brake with Shimano RT10; 160mm
Front tyre - Kenda K1080; 27.5x2.2"
Rear tyre - Kenda K1080; 27.5x2.2"
Wheel size - 27.5"
Rims - Merida Comp CC; 20mm inner rim width; material: aluminium
Spokes - Black steel
Front hub - Shimano TX505; 100x9mm; 32 spoke; Centerlock
Rear hub - Shimano TX505; 135x9mm; 32 spoke; Centerlock
Speeds - 14
Front derailleur - Shimano Altus FD-M315
Rear derailleur - Shimano Tourney TY300
Shift levers - Front: Shimano Altus EF-500-2L, Rear: Shimano Altus EF-500-7R
Chain - KMC Z7
Cassette - Shimano CS-HG210-7; 12-32 teeth; 7 speed
Chainset - Prowheel TM-CY10; 36-22 tooth; material: aluminium; crank length: 165mm
Bottom bracket - FSA TH-7420ST; 73-127.5mm
Pedals - VP VPE-891
Saddle - Merida Sport
Seatpost - Merida CC; material: aluminium; 30.9mm diameter; 15mm layback
Returns Information
Reviews
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