Enduro & Trail MTB Size Chart (AGILOMETER Sizing)

For its modern long-travel mountain bikes, Merida uses a progressive, reach-based sizing system called AGILOMETER. Instead of traditional S, M, L sizes tied to seat tube length, it uses **XShort, Short, Mid, Long, and XLong**. This philosophy acknowledges that with a dropper post, standover height is less critical, allowing riders to choose a frame size based on their preferred handling characteristics. You can choose a shorter size for a more playful, agile bike or a longer size for more stability at high speeds. This chart is the correct reference for the Merida One-Sixty size chart, as well as the One-Forty and Big.Trail.

Applies to: ONE-SIXTY, ONE-SIXTY FR, ONE-FORTY, ONE-TWENTY, BIG.TRAIL, and all their e-bike equivalents (eONE-SIXTY, eONE-FORTY, eONE-EIGHTY).

XC Mountain Bike Size Chart

For its cross-country (XC) and more traditional trail hardtails, Merida uses a classic sizing system from S to XXL. This applies to the race-focused Ninety-Six full suspension bike and the iconic Big.Nine (29er) and Big.Seven (27.5") hardtails. This sizing focuses on putting the rider in a powerful and efficient pedaling position, which is critical for climbing and covering long distances quickly.

Big.Nine & Ninety-Six Sizing

This is the definitive Merida Big.Nine size chart. The Big.Nine is designed for 29" wheels to maximize rollover and speed. The Big.Seven uses the same geometry principles but is built around 27.5" wheels and is only available in smaller sizes (XXS, XS, S), making it a perfect choice for shorter riders.

Applies to: NINETY-SIX (S-XL), BIG.NINE (S-XXL), and e-bike versions (eBIG.NINE, eBIG.TOUR).

Performance Road Bike Size Chart

Merida's performance road bikes are ridden at the highest levels of the sport and offer an exceptionally wide range of sizes for a precise, aggressive fit. This category includes the aerodynamic Reacto and the lightweight all-rounder Scultura. The use of sizes from 3XS to XL ensures that riders of almost any stature can find a perfectly proportioned race machine.

Reacto & Scultura Sizing

This is the correct Merida Reacto size chart and Merida Scultura size chart for the main carbon models. A correct fit on these bikes is crucial for achieving an aerodynamic and powerful position that can be sustained for hours. Note that some entry-level aluminum or rim brake models may use a slightly different range, so always confirm on the specific bike's page.

Applies to: REACTO (all carbon models) and SCULTURA (all carbon models). The TIME WARP triathlon bike uses a more compressed range (XS-L).

Gravel & Endurance Bike Size Chart

This category is for riders who prioritize comfort on long days or venture off the tarmac. It includes the versatile and highly-regarded Silex gravel bike and the comfort-focused Scultura Endurance road bike. These bikes feature a more relaxed geometry, with a taller front end (higher stack) for a less strenuous riding position.

Silex & Scultura Endurance Sizing

This is the official Merida Silex size chart and the guide for the Scultura Endurance. The Silex is known for its mountain bike-inspired geometry, which provides incredible confidence on rough terrain. The Scultura Endurance takes the speed of the regular Scultura and adds comfort-enhancing features and a more relaxed fit for tackling epic road rides and less-than-perfect pavement.

Applies to: SILEX (all models), SCULTURA ENDURANCE (all models), and their e-bike versions (eSILEX, eSCULTURA).

Fitness, Trekking & City Bike Size Chart

This is Merida's most diverse category, covering everything from the fast and light Speeder fitness bike to the ultra-versatile Crossway trekking bike. These bikes use a simple sizing system and are designed for comfort and practicality in urban and light trail environments.

Applies to: CROSSWAY (all models), SPEEDER (all models), and e-bike versions (eSPRESSO, eSPEEDER, eFLOAT).

A Deep Dive into Merida's Sizing Philosophies

Merida's vast range of bikes is a testament to their deep understanding of different cycling disciplines. This is reflected in their varied and purpose-driven approach to sizing. From the revolutionary AGILOMETER system to their classic, race-proven road bike fits, understanding the philosophy behind the numbers is key to choosing the perfect Merida bike.

AGILOMETER In-Depth: Sizing for Style, Not Just Stature

The AGILOMETER system used on bikes like the One-Sixty and One-Forty is Merida's answer to the evolution of modern mountain biking. As dropper posts have become standard, the traditional limitation of standover height (and thus seat tube length) has become far less important. Instead, the critical measurement for handling is **reach**—the horizontal distance from the bottom bracket to the head tube.

AGILOMETER decouples seat tube length from reach, allowing a rider to choose their bike's handling characteristics. Imagine you are 180cm tall. The chart suggests a 'Mid' size. This will provide a balanced, neutral ride feel. However, you have options:

• Sizing Down to 'Short': By choosing the 'Short' size, you get a bike with a shorter reach and wheelbase. This will make the bike feel incredibly nimble, "poppy," and easy to flick around in tight corners or on jumps. It's a great choice for a rider who values playfulness over outright stability.
• Sizing Up to 'Long': Opting for the 'Long' size provides a longer reach and wheelbase. This makes the bike exceptionally stable at high speeds and on rough, technical terrain. It's the preferred choice for enduro racers or riders who prioritize ploughing through obstacles with maximum confidence.

Thanks to low standover heights across the range, most riders can comfortably fit on at least two AGILOMETER sizes. Your choice becomes a reflection of your personal riding style.

FAST KINEMATIC Suspension: A Key Part of the Fit

Merida's full-suspension bikes feature their size-tuned **FAST (Flexstay-Adjusted-Size-Tuned) Kinematic**. This system is integral to the bike's fit and feel. The "Flexstay" design on shorter-travel bikes like the Ninety-Six removes a pivot point for simplicity and weight savings, while longer-travel bikes use a full Horst-link pivot system. The "Size-Tuned" aspect is crucial: Merida engineers different suspension kinematics for each frame size. This means that a smaller rider on an XShort frame experiences the same supportive and progressive suspension feel as a taller rider on an XLong frame. This ensures the geometry and sizing work in perfect harmony with the suspension for every rider, a detail many other brands overlook.

Model Geometry Comparisons: Choosing the Right Bike

Even within the same category, different Merida models have distinct personalities defined by their geometry.

• Reacto vs. Scultura vs. Scultura Endurance: These three bikes showcase the spectrum of road riding. The **Reacto** is the pure aero race bike, with the lowest stack and most aggressive geometry for maximum aerodynamic advantage. The **Scultura** is the lightweight all-rounder, featuring a slightly higher stack for better comfort on climbs, but still a pure race fit. The **Scultura Endurance** is the comfort-focused option, with a significantly taller stack, shorter reach, and slacker head angle for a more relaxed position and stable handling on long rides or rough pavement.
• Silex vs. Scultura Endurance: This is a common point of confusion. While both are for drop-bar adventure, their philosophies differ. The **Scultura Endurance** is a road bike first, capable of handling light gravel. The **Silex**, however, is inspired by mountain bikes. It has a very long reach, a very high stack, and is designed to be used with a short stem. This creates an upright, comfortable position on the tops and hoods, but an incredibly confident and controlled feel in the drops when descending on rough terrain. If your rides are mostly road with some gravel, choose the Endurance. If you want to tackle proper off-road trails, the Silex is the superior choice.

Frequently Asked Questions About Merida Sizing

What is Merida AGILOMETER Sizing?

AGILOMETER is Merida's progressive, reach-based sizing for modern trail and enduro mountain bikes like the One-Sixty and One-Forty. Instead of a size being determined by the seat tube length (which is less relevant with long dropper posts), it's based on the bike's reach and overall length. This gives riders a choice. For example, a 180cm (5'11") rider could choose a 'Mid' size for a nimble, playful bike or a 'Long' size for a more stable, planted feel at high speeds. Your choice depends entirely on your personal riding style and the terrain you frequent.

What if I am between two traditional sizes?

If you're between sizes on a traditional chart (e.g., between a Medium and a Large Big.Nine), the decision is similar to the AGILOMETER concept. Consider your body proportions and riding style. If you have a longer torso or prefer stability at speed, sizing up is often a good choice. If you have shorter arms or want a more agile and responsive bike, sizing down might be better. When in doubt, checking the detailed geometry charts or visiting a dealer in a location like Bournemouth or your local area for a test ride is the best way to be certain.

What's the difference between a Big.Nine and a Big.Seven?

The main difference is the wheel size, which dictates the intended rider. The Big.Nine uses 29-inch wheels, which are great for maintaining momentum and rolling over obstacles, making them ideal for XC racing and general trail riding for average to tall riders. The Big.Seven uses 27.5-inch wheels, which are a bit more nimble and offer quicker acceleration. Critically, Merida only offers the Big.Seven in smaller frame sizes (typically XXS, XS, and S), making it the perfect, proportionally correct choice for shorter riders who might find 29er wheels feel unwieldy.

Why does the Reacto/Scultura size range go down to 3XS?

Merida's commitment to providing a true pro-level fit for riders of all statures is a key brand differentiator. By offering their top-tier race platforms in sizes as small as 3XS (44cm) and 2XS (47cm), they ensure that shorter riders are not forced to compromise on a poorly fitting frame. These smaller sizes are not simply scaled-down versions; they feature specifically adjusted geometries and tube profiles to provide the same world-class handling and performance characteristics as the larger sizes.

I'm on the border of a 'Mid' and 'Long' AGILOMETER size. What should I do?

This is exactly what the AGILOMETER system is designed for. The choice is yours and should be based on how you want the bike to feel. Ask yourself: Do I enjoy popping off side hits and whipping through tight corners, or do I prefer smashing through rock gardens with maximum stability? If you want a more playful bike, choose 'Mid'. If you want an unflappable speed machine for enduro racing or bike park days, choose 'Long'. Thanks to the low standover height and long dropper posts, both sizes will likely be comfortable to stand over and pedal.