Merida Big Nine TR 5000 Mountain Bike 2026 - Hardtail MTB

The Big Nine TR 5000 is a progressive hardtail that blends cross-country efficiency with trail-ready control. A carbon frame, longer-travel fork and wide tyres help it climb quickly while staying composed on rougher descents.
Key Features:
- CF3 carbon frame with modern XC geometry and Agilometer sizing
- RockShox Reba RL air fork with 120mm travel
- No rear suspension
- Shimano Deore/XT 12-speed drivetrain
- Shimano SLX hydraulic disc brakes
- 29" wheels with Maxxis Rekon 2.4" tyres
- Lightweight dropper seatpost fitted as standard
- Available with 0% APR finance
The Merida Big Nine TR 5000 is designed for riders who like the speed and simplicity of a hardtail but want more control when the trail gets rough. Built around Merida’s CF3 carbon frame, it keeps weight low while delivering the stiffness you want for efficient climbing and quick acceleration. The geometry is progressive and confidence-inspiring, giving you stability on descents without dulling the bike’s fast, direct feel.
Compared to traditional XC hardtails, the TR version leans further into trail riding. A RockShox Reba RL fork with 120mm of travel adds comfort and control on technical sections, roots and rough ground, while still remaining efficient when you’re pushing uphill. The fork’s air spring and lockout help you tune the feel for longer rides and varied terrain.
Merida’s Agilometer sizing system focuses on rider height and reach rather than seat tube length, helping you choose a size that suits your riding style. Increased standover clearance and a longer, lower stance give the bike a planted feel when descending and cornering at speed.
The Shimano 12-speed drivetrain combines Deore shifting with an XT rear mech, offering crisp, reliable gear changes and a wide 10–51T range. That makes it easier to spin up steep climbs while keeping enough top-end speed for flatter, faster sections. A simple 1x setup keeps things quiet and low maintenance.
Braking is handled by Shimano SLX hydraulic disc brakes, with a larger rotor up front for confident control on longer descents. The tubeless-ready 29" wheels are paired with Maxxis Rekon 2.4" tyres, adding grip and volume for trail riding without feeling draggy on smoother ground.
A lightweight dropper post comes fitted as standard, letting you move freely on descents and technical sections, which is a key part of what sets the Big Nine TR apart from more traditional XC hardtails.
Overall, the Merida Big Nine TR 5000 is a fast, capable hardtail that rewards strong pedalling while offering extra confidence when the trail turns rough. It’s well suited to riders who want XC pace with a more forgiving, trail-ready setup for modern riding.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | CF3 III - carbon; Boost axle standard, BSA BB standard, Max. tyre size 29" x 2.4" |
| Fork | RockShox Reba RL; Air; 120 mm travel; Tapered; 44 mm fork offset |
| Headset | Acros ICR Merida integrated neck; Upper and lower IPS sealing |
| Stem | Merida Team CC III; material: aluminium; 31.8 mm diameter; -6 degree rise; incl. Merida Smart Mount; Length: 60mm |
| Bars | Merida Expert CC; material: aluminium; 760mm wide; flat |
| Front Brake | Shimano SLX M7100; 2 piston with Shimano RT54; 180mm |
| Rear Brake | Shimano SLX M7100; 2 piston with Shimano RT54; 160mm |
| Rear Mech | Shimano XT; SGS |
| Shifters | Front: JD-FL lever, Rear: Shimano Deore M6100 |
| Speed | 12 |
| Rims | Merida Expert CC II; 25mm inner rim width; material: aluminium; Tubeless ready (Stans 30mm tubeless tape installed and valves not included) |
| Front Hub | Shimano TC500-B; 110x15mm; 32 spoke; Centerlock |
| Rear Hub | Shimano TC500-MS-B; 148x12mm; 32 Spoke; Centerlock |
| Spokes | Double Butted Black stainless w/black nipples |
| Front Tyre | Maxxis Rekon; 29x2.4" WT; tubeless ready; 3C EXO |
| Rear Tyre | Maxxis Rekon; 29x2.4" WT; tubeless ready; 3C EXO |
| Seat Post | Merida Team TR SL; 30.9mm diameter; in-line; (S-M) - 150mm, (L-XXL) - 170mm seat post travel |
| Saddle | Merida Comp SL; 25% recycled material; V-mount |
| Chainset | Shimano Deore MT512; 32 tooth chainset; Crank length: 170mm |
| Bottom Bracket | Shimano BB-MT-501; 24mm |
| Chain | KMC X12 |
| Cassette | Shimano Deore M6100; 10-51 teeth; 12 speed |
| Pedals | Not Included |
![]()
Merida Big Nine 2026 Size Chart
|
Frame Size |
Height cm |
Height Feet / Inches |
|
XS |
< 163 cm |
<5’4” |
|
S |
157 - 173 cm |
5’2” – 5’8” |
|
M |
167 - 183 cm |
5’6” – 6’0” |
|
L |
177 - 190 cm |
5’10” – 6’3” |
|
XL |
187 - 196 cm |
6’2” – 6’5” |
|
XXL |
> 192 cm |
>6’4” |
What size frame do I need if I am between sizes? - read here
Merida Big Nine 2026 Geometry Chart
| Size | S | M | L | XL | XXL |
|---|---|---|---|---|---|
| Stack | 606 | 606 | 615 | 624 | 634 |
| Reach | 432 | 452 | 472 | 492 | 512 |
| Head Tube Length | 95 | 95 | 105 | 115 | 125 |
| Head Tube Angle | 68 | 68 | 68 | 68 | 68 |
| Bottom Bracket Drop | 65 | 65 | 65 | 65 | 65 |
| Fork Length | 506 | 506 | 506 | 506 | 506 |
| Chainstay Length | 430 | 433 | 436 | 439 | 442 |
| Wheelbase | 1123 | 1146 | 1173 | 1199 | 1226 |
| Top Tube Length (horizontal) | 591 | 611 | 633 | 655 | 678 |
| Standover Height | 704 | 704 | 710 | 731 | 752 |
| Seat Tube Length | 380 | 410 | 440 | 470 | 500 |
| Seat Tube Angle | 75.3 | 75.3 | 75.3 | 75.3 | 75.3 |
| Tyre Size | 29" | 29" | 29" | 29" | 29" |
All measurements are in mm unless otherwise stated.
The above table shows the standard geometry for the bicycle as shipped, other geometry configurations may be available with certain bikes. Please contact us via Live Chat to find out more.
Customer reviews and Q&A's are disabled because you declined functional cookies.
To enable reviews and Q&A's click the 'Cookie Settings' button below and enable functional cookies.
Merida Big Nine TR 5000 Mountain Bike 2026 - Hardtail MTB
Cycle to Work is a salary sacrifice scheme, where you can save up to 42% off a new Bike and Safety equipment. This means the cost is deducted from your salary as a non-cash benefit, so you save on tax and national insurance.
Here at Tredz, we accept Cycle to Work vouchers from all national schemes. For more information click here.
We understand that the Cycle to Work process can be a little slower than we would all like - so to help you pick the perfect ride, we're now offering FREE Cycle to Work Reservations on any in stock bike (T&C's apply). Simply speak to a member of our Online Bike Experts Team via Live Chat to discuss your reservation. Find out more here.
At Tredz we make finance easy. You can choose from a range of flexible finance repayments from 6 months up to 48 months, choose to place a deposit and pay the balance on finance. Go with a 0% APR finance deal with absolutely no interest on payments, or a 9.9% APR Buy Now Pay later option with a choice of 12 or 24 deferred payment options, or a longer-term 14.9% APR option with lower monthly payments. For more information click here.
We offer a fast, high-quality delivery service with flexible options to suit your schedule - including free delivery* over £30, next day delivery, Click & Collect, and now 24/7 InPost locker delivery for qualifying orders. Learn more about InPost
*Courier deliveries to Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and the Scottish Highlands/Islands will incur a charge.At Tredz, we’re committed to bringing you the best products at the best prices. If you find a product cheaper elsewhere, simply contact us for an immediate response using our live chat service. Click here to discuss your price match with an agent now for help.
Subject to Terms and Conditions
At Tredz, if you are not 100% happy with your order, then you can use our simple hassle free returns service. Simply return the item new and unused in the manufacturers original packaging within 90 days of purchase. Bikes and larger items are collected by courier.
When you receive your bike, all you'll need to do is unpack it, attach the pedals, turn the handlebars and ride.
To help you get started we have put together a handy Bike Building Guide, click here.