• M051

Merida Big Nine 80 Mountain Bike 2021 - Blue

Frame Size :

One of the best things about Merida is that despite being one of the biggest bike manufacturers on the planet they're agile and listen to our local market feedback.

The introduction of the brand new Shimano Deore 12 speed groupset was too good an opportunity to miss, so we took the template of the Big Nine 60 and upgraded it to 12 speed.


  • Lightweight alloy frame
  • Rock Shox Judy TK Coil 100mm w/ lockout
  • Shimano Deore 1x12sp drivetrain
  • Shimano MT-200 drivetrain


Product Code M051
Brand Merida
Gender Womens;Mens
Age Adult
Model Year 2021
Frame BIG.NINE TFS III material: aluminium 29x2.25" max. wheelsize 135x9mm axle standard BSA bottom bracket standard
Fork Rock Shox Judy TK Coil 100mm suspension travel Lockout 42mm fork offset 29x2.25" max. wheelsize
Shifters Shimano Deore SL-M6100 12 Speed
Derailleur (Rear) Shimano Deore M6100SGS Shadow+
Brakes Shimano MT-200 BR-MT200 brake caliper w/ Shimano RT10 160 mm
Crankset Shimano Deore M6100 30 teeth 170 mm-XS/S, 175 mm-M/L
Cassette Shimano Deore M6100 51-10 teeth 12 Speed
Chain KMC X10
Hub Front Shimano TX505 100x9mm width front hub 32 spoke holes Centerlock
Hub Rear Shimano MT-401 Centerlock 135x9mm width rear hub 32 spoke holes Centerlock
Rims Merida CC 17mm inner width material: aluminium
Tyres MERIDA K1080 29x2.2" wire
Handlebar Merida CC material: aluminium 690mm width 15mm rise
Stem MERIDA CC material: aluminium 31.8mm diameter 6° stem angle 70 mm-XS/S, 80 mm-M, 90 mm-L
Headset Merida M2345
Saddle MERIDA Sport comfort
Seatpost MERIDA CC material: aluminium 30.9mm diameter 15mm setback
Pedal VP, VPE-891
Wheel Size 29inch
Number of Gears 12


Ready to ride

Every bike from Start Fitness is fully checked & assembled before despatch and will arrive, almost, ready to ride. Each bike is assembled by one of our CyTech accredited mechanics and then packed into one of our custom boxes. Minimal assembly, with basic tools, is required before you can ride. Assembly tools are not usually included. Please note: Some bikes are not supplied with pedals. Manufacturers don’t know if you want flat or clipless pedals, rather than send the bike with the wrong type, they leave the choice for you to make.   This process has a lead time of between 5-7 working days Unfortunately during peak times this may be slightly delayed. We will however, aim to despatch your bike as quickly as possible.  

Making sure you are home

Once fully checked and boxed, we will contact you to book a delivery date. Our bikes are despatched on a next working day service (excludes weekends & bank holidays) for UK mainland orders, or a two day service to Northern Ireland and outlying Scottish areas. European bike deliveries usually take approximately one week.  

Taking Delivery

Any mechanical or cosmetic issues need to be reported to us within one week of the delivery date. If you do not plan on using the bike straight away, we advise that you remove it from the box and check it over ASAP as we cannot be responsible for any reported issues (other than standard warranty issues) later than one week from the date that the bicycle was delivered.  

First Check-Over

After a few weeks of riding (depending on riding style and conditions), a new bike will need a check-over to make final adjustments and to re-check all nuts and bolts. This is necessary as the bike goes through a ‘bedding in’ phase after which, final adjustment may be necessary. We recommend that this is carried out by a CyTech qualified mechanic. It is important to have these checks carried out to prevent any avoidable problems which may not be covered by warranty and to ensure the smooth running of the bicycle.   We can carry out the first check-over free of charge, at our Newcastle store (NE16JE). If you’ve had the bike delivered, it will be your responsibility to get the bicycle to and from our store for this work to be carried out. This complimentary check-over does not include any labour to replace worn parts or to fit new accessories.   All bikes must be booked in for the first service & must be clean or a £15 cleaning charge will be payable. You can book this by calling 0191 261 4191. Proof of purchase will need to be presented when the bicycle is dropped off for the first check-over.  

Bike Servicing

Bicycles need to be serviced regularly, as a guideline we would advise on at least one full service per year and/or a standard service twice a year. If the bike is used regularly in adverse conditions, more regular servicing may be required.


Book a call with one of our experts to get more information on this product.



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