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Big Trail 500

Big Trail 500

The perfect UK specific hardtail mountain bike - a trail focussed 29er

Regular price £1,012.50
Regular price £1,350.00 Sale price £1,012.50
Sale Sold out
Tax included. Shipping calculated at checkout.
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Big Trail 500 Description

Year: 2021
Weight: 14.2 kg
Gender: Mens
Model Code: GY5124-055
Gears: 11-Speed
Brake Type: Hydraulic Disc
Frame Material: Aluminium
Includes Pedals: Yes

In 2019, a few UK customers met Merida's MTB Product Manager Rey and over a few beers and together hashed out a wish list for the perfect UK specific hardtail mountain bike - a trail focussed 29er with 140mm fork, 1 x transmission, Boost standard bolt through axles and a dropper post. Then it was over to Rey, a very handy rider himself, to develop the ideas into a workable production bike.

That wishlist became a family of models of which the Merida Big Trail 500 is part of - featuring a slack enduro inspired 65.5° head angle and a 140mm fork delivers a fun confidence-inspiring bike. The long reach and short seat tube give plenty of space to manoeuvre on the bike and a really low standover height.

Merida has used long dropper posts to achieve a short seat tube, an advantage of this geometry is that depending on your riding style, most sizes will 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.


While clearly a trail loving long-travel hardtail, the new BIG.TRAIL also offers built-in versatility through the hidden rack, fender and kickstand mounts in case you like to turn the BIG.TRAIL into a ‘SUV’ commuter.


Ability to fit two water bottles into the frame without making the bottles difficult to reach. Perfect for long marathon races and extended trail sessions.


BIG TRAIL rolls on 29er wheels and has tyre clearance for up go 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 trail hardtails extra comfort and stability.


The new 'Trail Mount' is positioned underneath the top tube/seat tube junction and these ingenious fixing points makes fitting an additional tool or a pump a breeze. The 'Trail Mount' offers a real advantage if you prefer to keep the weight off your back or if you are heading out for an extra-long outing where you might need to carry additional gear.


Merida features internal cable routing on all models. Cables are routed through the frame, entering and exiting through smooth sockets. Only a clever system for their internal guiding and fixing guarantees reliable and rattle free routing, whilst the cables are protected from moisture and dirt and gives the bike a cleaner look.


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


All BIG TRAIL models offer 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 these bikes given the impacts they endure.


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.


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.


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


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


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


Merida uses a minimum of 6061 aluminium. The payback is that it’s possible to make lighter and more advanced frames by using additional heat treatment and double-butted wall thicknesses to produce light and stiff frames.

Big Trail 500 Specifications

Frame: TFS - 6061 Series Aluminium
Fork: Rockshox Recon Silver RL, 140mm
Shock: N/A
Rims: Merida Comp TR
Hubs: Shimano MT400-B
Tyres: Maxxis Dissector, 29 x 2.4
Seatpost: Merida Comp TR, 150mm
Bars: Merida Expert TR
Shifters: Shimano Deore M5100
Front Mech: N/A
Rear Mech: Shimano Deore M5100 Shadow+
Cassette: Shimano Deore M5100, 11-51
Chainset: Shimano Deore M5100, 32T
Brakes: Shimano BR-MT200, 180/180mm
Saddle: Merida Comp CC
Stem: Merida Expert TR

Model specifications correct at time of entry based on provided data, whilst we do our best to maintain an accurate specification it is possible that Merida might have changed these specifications without notifying us as component shortages arrise.

Big Trail 500 Size Guide

Frame Size Rider Height
Small 152 - 163 cm 5'0" - 5'4"
Medium 163 - 173 cm 5'4" - 5'8"
Large 173 - 183 cm 5'8" - 6'0"
XL 183 - 193 cm 6'0" - 6'4"
2XL 193 - 203 cm 6'4" - 6'8"

Sizing information provided as approximate reference.



Merida are one of the largest bike manufactures in the world, each of their bikes begins life on paper at their R&D HQ near Stuttgart before being rigorously tested as prototypes by Merida riders before being built by hand in their own factories in Taiwan.

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Frequently Asked Questions

Shipping and Returns

How much is shipping?

UK Mainland shipping bikes over £499 is free of charge, for orders under £499 we charge £29.95 for standard shipping.

We use DPD when shipping all our convensional bikes (i.e. not electric bikes) on an overnight service which includes full tracking and an hours timed delivery slot.

For further information please see our Shipping Policy.

When will you ship my order?

Orders placed before 12:00 on buisness days are usually shipped that same day.

Before we can ship your new bike, it needs to go into our workshop to be PDI'd (Pre-Delivery Inspected), during this inspection our mechanics will check everything is setup and ready to go - this can take a little time so on busy days or during sale periods it might take a day longer to process.

For further information please see our Shipping Policy.

How do I return an item?

If you need to return an item to us you can do so with 30 days of recieiving the item.

Simply follow the instructions on the paperwork enclosed with your order or visit our Returns Page for further information.

Returns are subject to our Refund Policy.

Is this bike in stock?

We only make available for sale products we have in stock, we do not remote warehouse products from suppliers as other stores do.

Our inventory is live except for bikes which are subject to up to a 24hr delay as our retail stores' inventory system is a bit archaic and requires a manual sync.

Have another question?

We have a Frequently Asked Questions page which also highlights our contact information should you need to contact us.

You can also contact us via Live Chat during normal office hours - the button is usually located in the bottom right of your screen.