Merida Big Nine 40 Mountain Bike 2026 - Hardtail MTB

The Merida Big Nine 40 is the perfect entry into mountain biking, delivering a confident, comfortable, and fun ride whether you’re exploring forest trails, canal paths, or hilly terrain. Built around Merida’s TFS V aluminium frame, it offers the ideal balance of strength and low weight. Double-butted, technoformed tubing ensures durability, while smooth welds and internal cable routing give it a clean, premium finish.
Key Features:
- TFS V 6061 aluminium frame with modern geometry and internal cable routing
- X-Fusion Migo 32 Air fork with 120mm travel and lockout
- Shimano CUES U4000 9-speed drivetrain for smooth shifting
- Shimano MT200 hydraulic disc brakes with 160mm rotors
- 29” wheels with Kenda Booster 2.4” tyres for grip and speed
- Dropper post ready and full internal cable routing
- Available with 0% APR finance
The Merida Big Nine 40 is the perfect entry into mountain biking, delivering a confident, comfortable, and fun ride whether you’re exploring forest trails, canal paths, or hilly terrain. Built around Merida’s TFS V aluminium frame, it offers the ideal balance of strength and low weight. Double-butted, technoformed tubing ensures durability, while smooth welds and internal cable routing give it a clean, premium finish.
Modern trail geometry means a longer reach and shorter stem for stability on descents and precise control through technical sections. The steeper seat angle keeps your weight forward on climbs, while a slacker head angle adds confidence when tackling steeper or rougher ground.
The X-Fusion Migo 32 Air fork provides 120mm of adjustable travel, soaking up bumps for a more comfortable and controlled ride. The air spring allows riders to fine-tune the feel of the fork to match their weight and riding style, while the lockout function improves efficiency on smoother sections or climbs.
The 1x9 Shimano CUES drivetrain is simple, efficient, and easy to maintain. With a wide 11-46T cassette, you’ve got plenty of range for steep climbs and fast descents. Shifting is crisp and consistent, thanks to Shimano’s precise engineering, while the CUES groupset’s robust design makes it perfect for everyday off-road use.
Stopping power comes from Shimano MT200 hydraulic disc brakes, offering reliable performance in all conditions. Paired with 160mm rotors, they deliver consistent braking on wet, dry, or muddy rides.
Rolling on fast and stable 29” Merida Comp CC wheels, the Big Nine 40 keeps momentum over roots, rocks, and rough terrain. Kenda Booster 29x2.4” tyres provide excellent traction and grip, with tanwall options adding a stylish finish.
The cockpit and finishing kit come from Merida’s in-house Comp range, ensuring comfort and reliability. The frame is also dropper post ready for riders who want to upgrade to a height-adjustable seatpost in the future.
Occasionally, without notice, manufacturers change product design and/or specifications.
Frame | TFS V - 6061 aluminium, double butted and technoformed. Tapered head tube. Chain stay mounted disc brake. Internal cable routing. Mudguard and kick stand mounts. BSA threaded BB. 135mm x 9mm axle. Max. tyre size 29" x 2.4" |
Fork | X-Fusion Migo 32 Air; 120 mm travel; lockout; max. 29x2.4" max. tyre size |
Headset | FSA NO.55R/57SC/57B |
Stem | Merida Comp CC; material: aluminium; 31.8 mm diameter; 7 degree rise |
Bars | Merida CC; material: aluminium; 15mm rise; S - 720mm wide, (M-L) - 740mm wide, (XL-XXL) - 760mm wide |
Front Brake | Shimano MT200; hydraulic brake with Shimano RT10; 160 mm |
Rear Brake | Shimano MT200; hydraulic brake with Shimano RT10; 160 mm |
Rear Mech | Shimano Cues U4000; GS |
Shifters | Rear: Shimano Cues U4000 |
Speed | 9 |
Rims | Merida Comp CC; 20mm inner rim width; Material: aluminium |
Front Hub | Shimano TX505; 100x9mm; 32 Spoke; Centerlock |
Rear Hub | Shimano TX505; 135x9mm; 32 Spoke; Centerlock |
Spokes | Black steel |
Front Tyre | Kenda Booster; 29x2.4" 2nd color option: Booster 29x2.4 tanwall |
Rear Tyre | Kenda Booster; 29x2.4" 2nd color option: Booster 29x2.4 tanwall |
Seat Post | Merida Comp CC; material: aluminium; 30.9mm diameter; in-line |
Saddle | Merida Comp SL |
Chainset | Shimano Cues UT400-1; 32 tooth chainset; material: aluminium ; Crank length: S - 165mm, (M-XXL) - 170mm |
Bottom Bracket | Shimano UN101 LL123 |
Chain | KMC xGlide |
Cassette | SunRace U9 CS-U980 9AZ; 11-46 teeth; 9 speed |
Pedals | VP VPE 536 |
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 40 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.
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, we offer a fast high quality service, with a range of options from free delivery on orders over £30, next day and convenient click & collect from one of our stores. Simply select within the checkout.
*Courier deliveries to Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and the Scottish Highlands/Islands will incur a charge.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 365 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.