Merida Big Trail 400 29" Mountain Bike 2021 - Hardtail MTB

Merida Big Trail 400 29" Mountain Bike 2021 - Hardtail MTB

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Product Description

The Big Trail name is back for 2021! Last year a few UK customers met Product Manager Rey at the Global Launch in Germany and over a few beers defined their wish list for a perfect UK bike - a trail focussed 29er with 140mm fork, 1 x transmission, Boost standard bolt through axles and a dropper post.

Key Features

  • Long, low and slack aluminium frame
  • 140mm Suntour XCR34 forks for confident descending
  • Shimano Deore 1x10 drivetrain give slick shifting
  • 29" wheels roll fast and carry speed over varying terrain
  • Colour: Orange/Black
  • Sizes: Small (14.5"), Medium (16"), Large (17"), X Large (18")
  • The Merida Big Trail 400 29" is available with 0% APR finance

Then it was over to Rey, a very handy rider to develop the ideas into a workable bike. He rode with us at The Ex Enduro event on Exmoor last year. At the end of day one he climbed off the bike understanding why we wanted 140mm forks. He completely gets the UK trail riding style. The enduro inspired 65.5° head angle in combination with the 140mm fork delivers a fun confidence inspiring bike. A long reach and short seat tube gives plenty of space to manoeuvre on the bike and a really low stand over height. We use long dropper posts to achieve the short seat tube. Speccing 29er wheels with 2.4” tyres meant designing the bike around a 55mm chain line to give ample tyre clearance even in muddy trail conditions.

The seat angle is much more aggressive compared than our XC focussed bikes making climbing easier. Another advantage of the geometry is depending on the riding style, most sizes work for most body sizes. The only question is if you want to go crazy fast or super agile. For speed take the longer size, for agility take a shorter size. 

Highlights of the Big Trail 400 - Suntour XCR34 Air fork, Deore 1 x 10

All Tredz bikes are:

  • Fully built & ready to ride
  • Fully checked & tested by Cytech qualified mechanics
  • Available with 0% APR finance on any basket over £99
  • UK price match guarantee
  • 365 day no hassle returns
  • Free delivery in the UK Mainland on a date that suits you

In the box with every Tredz bike is:

  • Free Tredz 9 key trail tool
  • Free Tredz pedal spanner
  • Free basic pedals
  • Tredz drawstring kit bag
  • 16 point quality control check sheet
  • Basic bike setup instructions
  • Free Cycle Plan insurance voucher

Occasionally, without notice, manufacturers change product design and/or specifications.


Frame:TFS - 6061 series double butted and technoformed aluminium tubing with smooth welding. Modern trail bike geometry. Class leading, premium technologies such as Boost axle standard, tapered head tube, inboard disc mounts, internal cable routing
Fork:Suntour XCR34 LOR; Air; 140mm travel; Tapered; lockout; 51mm fork offset
Headset:Merida M2345
Stem:Merida Comp CC; aluminium; 31.8mm diameter; 6 degree rise - Length : 50 mm all sizes
Bars:Merida Expert CC; aluminium; 740mm wide; 10mm rise
Front Brake:Shimano MT-200; 2 piston hydraulic disc brake with Shimano RT10; 180mm rotor
Rear Brake:Shimano MT-200; 2 piston hydraulic disc brake with Shimano RT10; 180mm rotor
Brake Lever:Shimano MT-200
Rear Mech:Shimano Deore M5120 Shadow+
Shifters:Shimano Deore M4100
Rims:Merida Comp TR; 29mm inner rim width; Material: aluminium; Tubeless ready (tubeless tape and valves not included)
Front Hub:Shimano MT400-B; 110x15mm; 32 spokes; Centerlock
Rear Hub:Shimano MT400-B; 148x12mm; 32 spokes; Centerlockincluding removable lever with 6mm Allen key
Spokes:Black stainless
Front Tyre:Kenda Regolith; 29" x 2.4"; wire bead
Rear Tyre:Kenda Regolith; 29" x 2.4"; wire bead
Seat Post:Merida Comp TR; 30.9mm diameter; in-line; S: 125mm drop - M/L/XL: 150mm drop with Shimano SL -MT500-IL lever
Saddle:Merida Comp CC
Chainset:Shimano Deore M5100; 32 teeth chainwheel with 170mm - S, 175mm - M up length crank
Bottom Bracket:Shimano Deore
Chain:KMC X10
Cassette:Shimano Deore M4100; 11-46 teeth; 10 speed
Pedals:VP Components, VPE-891

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