BIG SEVEN 80

UK Exclusive - Aluminium 650b hardtail with sophisticated TFS frame, RockShox Judy fork, 1 x 12 Shimano Deore drivetrain and hydraulic disc brakes.
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Our heartland has always been bombproof aluminium hardtails. Half a century of frame building experience counts for a lot.

The Big Nine and Big Seven 80 is a UK exclusive model pairing a Rock Shox Judy fork and Shimano Deore 1 x 12 groupset with our sophisticated TFS frame featuring the latest technology:

    - full internal cable routing for a clean, neat set up<br>
    - tapered headtube offering the potential for future upgrades<br>
    - inboard disc brake mounts protect the brake and maximise stopping power<br>


There are a wide range of sizes; Big Nine for taller riders and Big Seven for shorter riders with a healthy overlap between the two.


For riders in the middle, riding style can be taken into account. If you are looking for speed and efficiency choose a Big Nine, if you are looking for agility chose a Big Seven.

  • 1 x 12 Shimano Deore drivetrain
  • RockShox Judy TK fork
  • Hydraulic disc brakes
  • Sophisticated aluminium frame
  • Tapered head tube
  • Internal cable routing
  • material: aluminium
  • 27.5x2.25" max. wheelsize
  • 135x9mm axle standard
  • BSA bottom bracket standard
frame size XS, S
  • Coil
  • 100mm suspension travel Lockout
  • 42mm fork offset
  • 27.5x2.25" max. wheelsize
  • 17mm inner width
  • material: aluminium
  • 100x9mm width front hub
  • 32 spoke holes
  • Centerlock
  • 135x9mm width rear hub
  • 32 spoke holes
  • Centerlock
  • 30 teeth
  • 170 mm-XS/S, 175 mm-M/L
crank size 170 mm-XS/S, 175 mm-M/L
bottom bracket Shimano Deore
  • 51-10 teeth
  • 12 Speed
chain KMC X10
rear derailleur Shimano Deore M6100SGS Shadow+
  • BR-MT200 brake caliper
headset Merida M2345
  • material: aluminium
  • 31.8mm diameter
  • 6° stem angle
  • 70 mm-XS/S, 80 mm-M, 90 mm-L
stem size 70 mm-XS/S, 80 mm-M, 90 mm-L
  • material: aluminium
  • 690mm width
  • 15mm rise
grip Merida EC
  • material: aluminium
  • 30.9mm diameter
  • 15mm setback
saddle MERIDA Sport comfort
pedal VP, VPE-891

weighed with 27.5" wheels and at frame size M, without pedals

Bike Frame Geometry Image
Frame Size XS S
Tyre Sizes 27.5" 27.5"
St Seat Tubes mm 340 380
Tt Top Tubes mm 550 570
Cs Chain Stays mm 430 430
HTA head tube angle [°] 69 69
STA seat tube angle [°] 73 73
Bd Bottom Bracket Drops mm 30 30
Ht Head Tube Lengths mm 100 115
Fl Fork Lengths mm 487 487
R Reach mm 378 394
S Stacks mm 563 577
Wb Wheel Base mm 1056 1078
Sh Stand Over Height mm 649 689

Technology

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X-TAPER HEADTUBE

Our X-Tapered headtube offers the space for a tapered fork to be fitted. Tapered forks offer superb stiffness and precise and deliver confidence-inspiring steering.

X-TAPER HEADTUBE
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SMOOTH WELDING

Sometimes called ‘double pass welding’, a second pass over the weld gives a clean organic look to the frame. At first glance, you will be convinced it is carbon.

SMOOTH WELDING
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INTERNAL CABLE ROUTING

Cables are routed through the frame, entering and exiting through smooth sockets. The bike looks neat, whilst the cables are protected from moisture and dirt.

INTERNAL CABLE ROUTING
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DOWN TUBE EXIT

Ensures that internally routed cables and wires can’t move freely and remain easily accessible for servicing.

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RACELITE 61 ALUMINIUM

We use a minimum of 6061 aluminium. The pay back is that it’s possible to make lighter and more advanced frames. We use an additional heat treatment and double-butted wall thicknesses to produce light and stiff frames.

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TFS - TECHNO FORMING SYSTEM

Technoforming is a mechanical forming process, shaping the tubes by using negative moulds, at times combined with an internal metal core. 

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F-MOUNT

‘F-Mount’ equipped bikes have integrated fittings for mud guards (some bikes require model specific mud guards), making fitting fast and simple.

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K-MOUNT

Integrated mount on the chainstay to fit a Merida kickstand (or any commercial kickstand).

K-MOUNT
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C-MOUNT

‘C-Mount’ equipped bikes have the fixing points for a rear rack already integrated (some bikes require model specific rear rack), making fitting fast, simple and reliable.