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Merida Big Trail 400 Mountain Bike Silk Dark Purple/Silver Purple (2021) PRE-ORDER

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Merida Big Trail 400

  • Alloy Frame
  • 1x10 Speed Shimano Deore Drivetrain (11-46 cassette)
  • Merida Comp TR Dropper Seat Post
  • Tektro M275 Hydraulic Disc Brakes
  • Suntour XCR34 LOR Fork - 140mm Travel


"The Merida Big.Trail is going to be a lot of fun for someone getting their first proper mountain bike, or a rider looking for a trail hardtail without breaking the bank."
- Mike Blewitt

Australian Mountain Bike Magazine

The Merida Big Trail 400 dials up the fun with the simple brilliance of a hardtail with long travel adventure. The Big Trail reignites a bike with modern trail geometry, big 29er wheels and long travel for grip and comfort. This bike is all about bringing the most out of a hardtail which is easy to set up, maintain, affordable and can be just as fun as a full suspension mountain bike.

The lightweight alloy frame with internally routed cables is paired with a Suntour XCR34 LOR Fork with 140mm travel and lockout for versatile trail capabilities. The modern trail geometry ensures that this bike can descend with speed even on technical trails and still climb with ease thanks to the central seating position over the bottom bracket. Ride aggressively on trails all day long with the 1x10 speed Shimano Deore drivetrain which is incredibly proficient on the trails Add in the Tektro Hydraulic Disc brakes for powerful braking and this bike is flat out fun, ready to corner with aggression and confidence. Spend all day riding with fixing points for two bottles and hidden rack, fender and kickstand mounts for anyone that wants to make this bike a capable commuter.

The 400 is nice step up from the Big Trail 200 with an upgraded fork and the addition of a dropper post. This is similar throughout the Big Trail range, where design concept is similar with a few spec adjustments. Move up the to Big Trail 500 and you get a RockShox Recon Silver RL fork and an 11 speed drivetrain. At the end of the day the 400 will tick a lot of boxes for most riders as it is bashful, big and bold for a modern ride that the recreational rider will thrive on.

Modern Trail Geometry

A long reach, paired with a slack 65.5° head angle and a steep seat angle make the BIG.TRAIL a solid descender even when the trail is full of roots and rocks, maintaining impressive climbing abilities, due to the central seating position over the bottom bracket. The extra short seat tube and low stand over height help create lots of space to manoeuvre the bike when the trail is tough but also allow for long travel dropper posts.

Boost Technology

The entire BIG.TRAIL range offers Boost technology at the front and rear. The shallower axle standard of 110 mm (front) and 148 mm (rear) allows for a wider spoke angle, resulting in a stiffer and stronger wheel, hugely beneficial on trail hardtails with 29er wheels.

Tyre Clearance

Our BIG.TRAIL rolls on 29er wheels and has tyre clearance for up to 2.5“ trail tyres. The combination of 29er wheels and 2.5“ tyres offer plenty or corner and climbing grip, while the big tyre volume and the 29er’ rolling over ability’ give our trail hardtail extra comfort and stability.

More Information
SKU 21MeridaBigTrail400SilkDarkPurpleSilverPurple
Season 2021
Click & Collect Yes
Wheel Size 29"
Frame Material Alloy
Groupset Brand Shimano
Groupset Shimano Deore
Cassette Type 10 Speed
Fork Brand Suntour
Chainset Type Single
Brake Type Hydraulic Disc Brake
Front Travel 140mm
Bottom Bracket Shimano BSA 68/73 – 24mm
Brakes Tektro M275; 2 piston
Brake Levers Tektro
Cassette Shimano Deore M4100; 11-46 ATC; 10 Speed
Chain KMC X11 NPBK
Crankset Shimano Deore M5100; 32 ATC
Derailleur Rear Shimano Deore M5120 Shadow+
Fork Suntour XCR34 LOR; Air; 140 STR; Tapered; lockout; 51mm fork offset
Frame BIG.TRAIL TFS; MAT aluminium; 29 WHS; 148x12 AST; BSA BBR
Handlebar MERIDA EXPERT CC; MAT aluminium; 760 Wide; 10 Rise
Headset MERIDA M2345
Hubs Shimano MT400-B; 148x12 WHR; 32 Spokes; Centerlock
Pedals VP VPE-891
Rims MERIDA COMP TR; 29 IWR; MAT aluminium; Tubeless ready (tubeless tape and valves not included)
Seatpost MERIDA COMP TR; 30.9 Diameter; 0 Setback; S: 125 SPT - M/L/XL: 150 SPT
Stem MERIDA COMP CC; MAT aluminium; 31.8 Diameter; 6 Angle
Spokes Black stainless
Shifters Shimano Deore M4100
Tyres Kenda Regolith; 29x2.4"; wire
Speeds 1 x 10
Sizing SKUs SM:MEHP2181946, MD:MEHP2181957, LG:MEHP2181968, XL:MEHP2181979

Hardtail Mountain Bike Geometry Diagram


ST Seat Tube

TT Top Tube

CS Chain Stay Length

HTA Head Tube Angle

STA Seat Tube Angle

BD Bottom bracket Drop

HT Head Tube

FL Fork Length

R Reach

S Stack

WB Wheel Base


Wheel Size 29" 29" 29" 29"
Frame Size 38 41 43 45
ST Seat Tube (mm) 380.0 410.0 430.0 450.0
TT Top Tube (mm) 579.0 600.0 622.0 645.0
CS Chain Stay Length (mm) 435.0 435.0 435.0 435.0
HTA Head Tube Angle (°) 65.5 65.5 65.5 65.5
STA Seat Tube Angle (°) 75.5 75.5 75.5 75.5
HT Head Tube (mm) 95.0 100.0 110.0 120.0
R Reach (mm) 415.0 435.0 455.0 475.0
S Stack (mm) 636.0 641.0 650.0 659.0
WB Wheel Base (mm) 1150.0 1172.0 1196.0 1220.0


About Merida

In September 1972, Ike Tseng (1932–2012) a brilliant engineer and visionary founded MERIDA. While visiting the USA, Ike saw a sign in a bike shop that stated refusal to repair any Taiwanese bikes, due to the unfavourable quality. As a result of this he set out to fulfil his dream of high quality bikes made in Taiwan and formed the MERIDA Industry Company Ltd.

The MERIDA name has three syllables Me-Ri-Da and it is the company’s intention to manufacture beautiful, high quality bikes that enables everyone to reach their destination enjoyably. MERIDA created a world-leading bike factory but Ike still wasn’t satisfied, so in 1988 the MERIDA brand was launched. Ike’s vision is still very much a part of MERIDA, manufacturing all kinds of bikes from children’s bikes to world-class professional road and mountain bikes for the Bahrain- MERIDA team riders. Everybody has a different journey, and everyone can benefit from a MERIDA.

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Merida Big Nine Bike Sizing Chart

Rider's Height (cm)

This is an accurate estimate, and every new bike comes with a free professional bike fit when you click & collect in store, plus all bikes have a 30 day Perfect Ride Guarantee.