OBERSON BUYING GUIDE
How to choose a mountain bike
Riding style, suspension, wheel size, frame material and fit: Oberson experts review the key elements for choosing the right mountain bike.
IN BRIEF
How to choose a mountain bike
Choosing the right mountain bike begins with determining your riding style. Cross-country, trail, enduro, and downhill bikes are designed for different types of terrain and riding preferences. Once you know how and where you ride, you can quickly narrow down the type of bike that best suits your needs.
What type of mountain bike should you choose?
Choosing the right mountain bike begins with determining your riding style. Cross-country, trail, enduro, and downhill bikes are designed for different types of terrain and riding preferences. Once you know how and where you ride, you can quickly narrow down the type of bike that best suits your needs.
| Mountain bike type | Key Features | Designed for |
|---|---|---|
| Cross-country skiing | Lightweight, pedaling efficiency, short-travel suspension (100 to 120 mm) at the front or full suspension, steeper geometry | Climbs, tight turns, speed, non-technical trails, competition |
| Trail | Balanced geometry, moderate suspension travel (120 to 160 mm), versatile performance | For cyclists who love climbs as much as descents |
| Enduro | Long travel (150 to 180 mm), open geometry, stable at high speeds | Technical descents, steep terrain, jumps |
| Electric (electric mountain bike) | Pedal-assist motor, increased weight, geometry and characteristics similar to trail and enduro bikes | Go further, maximize descents |
| Descent | Very long travel (180 to 200 mm), designed exclusively for downhill | Bike parks, lift-served terrain, steep and technical descents |
Cross-Country (XC)
Choose a cross-country mountain bike if you prioritize climbing efficiency, speed, and long rides on less technical trails. These bikes are lightweight, with a steeper geometry for precise handling, and either front suspension (hardtail) or short-travel full suspension for efficient power transfer.
Many modern cross-country bikes now offer better performance on descents and technical sections. A more progressive geometry and increased suspension travel make them more stable and confidence-inspiring on technical terrain than older XC models.
• Light and efficient uphill and during acceleration
• Steeper geometry for precise handling
• Front or full suspension with short travel (100 to 120 mm)
• Ideal for less technical trails, competition, and long rides
Trail
Opt for a trail bike if you're looking for a versatile option, performing equally well uphill and downhill. Trail bikes are a popular choice for everyday rides. They offer moderate suspension travel (generally 120 to 160 mm) and balanced geometry that is both nimble and capable of tackling challenging descents. They provide comfort, stability, and responsiveness.
• High-performing uphill and downhill
• Moderate suspension travel (120 to 160 mm)
• Stable and responsive geometry
• Ideal for varied terrain and recreational rides
Enduro
Choose an enduro mountain bike if you enjoy downhill riding on steep and technical terrain, while still being able to climb under your own power. These bikes are designed to offer control and stability at high speeds.
They feature long suspension travel (typically 150-180 mm), a slack geometry, and a longer wheelbase to tackle rough trails, jump lines, and demanding descents. You won't break any Strava records, but the shorter gearing allows for comfortable climbs to the summit.
• Long suspension travel (150 to 180 mm) for rough terrain
• Open steering angle and long wheelbase for more stability
• Optimal control on steep and technical descents
• Ideal for aggressive riding, jumps, and demanding trails
Electric mountain bike
Choose an electric mountain bike if you want to ride longer distances, go faster, climb more easily, or maximize your downhill time. These bikes combine trail or enduro geometry with a pedal-assist motor and a battery.
• Pedal-assist motor for easier climbs
• Heavier, but very high-performance
• Available in trail and enduro configurations
• Ideal for long rides and elevation changes
Descent
Choose a downhill bike if you primarily ride in bike parks with lifts and prioritize fast descents. These bikes are not designed for climbing. With very long suspension travel and a very slack geometry, they offer maximum stability and control at high speeds on steep and technical trails.
• Very long suspension travel (180 to 200 mm) for maximum impact absorption
• Extremely stable at high speeds
• Designed exclusively for downhill riding
• Designed for bike parks served by lifts
Should you choose a hardtail or a full-suspension mountain bike?
The choice between a hardtail and a full-suspension mountain bike depends on your terrain, riding style, comfort preferences, and budget.
Hardtail
Opt for a hardtail mountain bike if you enjoy climbs and are looking for good pedaling efficiency on less technical trails and forest paths. Featuring front suspension only and a rigid rear triangle, hardtails offer direct power transfer and a more responsive feel. They are generally a more affordable option.
• Lighter and more efficient on climbs
• Less maintenance and generally more affordable
• Direct power transfer with no bobbing
• Ideal for cross-country and less technical trails
Full Suspension
Choose a full-suspension mountain bike if you ride on technical terrain or are looking for more comfort and control on descents. With suspension at both the front and rear, these bikes absorb impacts and offer better traction on uneven terrain.
• More comfort and control on rough terrain
• Better traction on climbs and descents
• More forgiving over rocks, roots, and technical sections
• Many cross-country bikes, as well as all trail, enduro, and downhill bikes, are full-suspension
What wheel size and tire width should I choose for a mountain bike?
Wheel size and tire width influence how your bike rolls, handles obstacles, and performs on the trails. Today, 29-inch wheels have become the norm on most mountain bikes and represent the best choice for the majority of riders. Smaller 27.5-inch wheels are mostly used in specific cases, such as for smaller frame sizes or to offer a more playful ride.
Wheel size
29-inch wheels (best choice for most riders)
Choose 29-inch wheels for a more efficient, stable, and reassuring ride. This is now the standard for adult cross-country, trail, and enduro bikes.
• Roll over rocks and roots more easily
• More stable at high speed and downhill
• Better traction due to a larger contact patch
• More efficient for long rides and varied terrain
27.5-inch wheels
Choose 27.5-inch wheels if you prioritize maneuverability, acceleration, or if you ride a small or extra small frame. They offer a livelier feel and are easier to handle in tight sections. That said, these advantages have diminished with the evolution of 29-inch geometry.
• Faster acceleration and livelier handling
• Agile in tight corners
• Often used on small frames (S, XS)
• Offer a playful ride
Mullet setup (29″ front / 27.5″ rear)
Some bikes combine a 29-inch wheel in the front and a 27.5-inch wheel in the rear to balance stability and agility, particularly on more aggressive trail and enduro bikes.
• Stability and control in the front
• Increased maneuverability in the rear
• Available on some trail and enduro models
Tire width
Choose your tire width based on the technical level of your terrain and the grip desired. Wider tires offer more traction and comfort, while narrower tires roll faster on less technical trails.
• 2.2″ to 2.4″ — For speed and efficiency (common in cross-country)
• 2.4″ to 2.6″ — Versatile option for most trail bikes
• 2.6″ and up — For maximum grip and more confidence on technical descents
Should you choose an aluminum or carbon mountain bike frame?
The choice between an aluminum and a carbon frame depends on your budget, your weight priorities, and the desired feel. Aluminum frames are durable and affordable, while carbon frames are lighter and absorb vibrations better.
Aluminum
Choose an aluminum frame if you are looking for a durable, reliable, and more affordable option. Aluminum bikes offer excellent performance for the majority of cyclists and are widely used in all categories, from cross-country to enduro.
• More affordable than carbon
• Durable and impact-resistant
• Slightly heavier than carbon
• Excellent value for money for most cyclists
Carbon
Choose a carbon frame if you prioritize lightness, vibration absorption, and a more refined feel. Carbon is lighter and can be designed to offer specific performance characteristics.
• Lighter for better efficiency
• Better vibration absorption for more comfort
• More expensive than aluminum
How to choose the right mountain bike size and fit?
Frame size, reach, and overall geometry all influence the bike's behavior, hence the importance of choosing a size adapted to your body shape and riding style.
Frame size
Choose your frame size based on your height and the manufacturer's size guide. Most brands offer sizes like XL, S, M, and L, but the fit may vary depending on the bike's geometry.
• Refer to the brand's size guide as a starting point
• If you are unsure between two sizes, consider your riding style:
o Smaller size for a more playful and nimble ride
o Larger size for more stability at high speeds
• Differences in geometry between models can affect the fit
Fit and comfort
Choose a mountain bike that feels comfortable and natural.
• You should be able to stand over the bike comfortably
• Your position should be stable, without being too stretched or too compact
• The bike should be easy to handle both seated and standing
Try before you buy
Trying multiple models is often the best way to find the right fit. Small differences in geometry, suspension, and size can have a significant impact on how the bike performs on the trail.
Try several sizes, if possible.
Focus on comfort, control, and confidence.
Don't rely solely on sizes — fit may vary from brand to brand.
Mountain Biking Gear & Essentials
Once you've chosen your mountain bike, the right gear can improve your comfort, safety and performance on the trails.
• Mountain bike helmet — Essential protection on all types of trails
• Gloves — Improve grip and protect hands from impacts and abrasion
• Protection — Knee and elbow pads for more confidence on technical terrain
• Clothing — Breathable and durable clothing that offers good freedom of movement; mountain bike shorts are usually worn with a chamois liner, essential for comfort
• Hydration and tools — A hydration pack or bottle, as well as basic repair tools for longer rides
FAQ — How to choose a mountain bike
Find here the answers to the most frequently asked questions about choosing mountain bikes.
What type of mountain bike should I choose?
Choose your mountain bike based on your riding style. Cross-country bikes are ideal for climbing and speed on hilly terrain, trail bikes perform well both uphill and downhill, and enduro bikes are designed for steep and technical descents as well as big jumps. For most riders, the trail bike is the most versatile option.
Can you use a mountain bike as a gravel bike?
Yes, you can use a mountain bike as a gravel bike. Cross-country bikes are particularly effective on forest roads due to their rigid frame and short-travel suspension, which can often be locked out. However, they are generally a bit slower than gravel bikes on smoother surfaces due to their wider tires and suspension.
What is the best mountain bike for beginners?
The best mountain bike for beginners is typically a trail bike or a cross-country hardtail. Trail bikes offer the most versatility and are easy to handle on a wide variety of terrain. Hardtails are simpler, more affordable, and efficient on climbs. For most new riders, choosing a comfortable and well-fitting bike is more important than focusing on advanced features.
Should you choose flat or clipless pedals for mountain biking?
Flat pedals are the best choice for most beginners, as they are easier to use and allow you to quickly put a foot down on technical terrain. They are equipped with pins that provide better grip on the sole of your shoes, making it easier to keep your foot in place and transfer power to the cranks. Flat pedals are also popular among experienced riders, especially in enduro.
Clipless pedals attach to a cleat under the shoe and offer a more direct connection with the bike. Choose clipless pedals if you are looking for better pedaling efficiency and better control on technical terrain. However, keep in mind that they require an adjustment period. Many cyclists start with flat pedals before switching to clipless pedals with experience.
What suspension travel should you choose for a mountain bike?
The right travel depends on the type of trails you ride and your riding style. Short travel (around 100-120 mm) is ideal for cross-country, where efficiency and uphill performance are priorities. Medium travel (120-160 mm) is well suited for trail riding, which places as much emphasis on climbing speed as on downhill comfort and control. Long travel (150-180 mm or more) is designed for enduro and downhill. It offers the impact absorption needed for steep and technical terrain as well as jumps.
Is a mountain bike suitable for long rides?
Yes, it can be very suitable for long rides, depending on the type of mountain bike and the terrain. Cross-country bikes are best suited for long distances, especially modern models with around 120mm of travel front and rear. They are designed for efficiency, speed, and climbing performance, making them ideal for racking up the miles.
Many trail bikes are also suitable for long rides if you are looking for more comfort and capability on technical trails. Choose a lighter trail model with moderate travel and geometry closer to that of a cross-country bike to maintain good efficiency while gaining control and confidence in more difficult sections.
Mountain Bikes at Oberson
Find the mountain bike that suits your needs
Whether you love flowy trails, technical sections, jump lines, or steep descents, the right mountain bike transforms your trail experience. Oberson offers a wide selection of mountain bikes from top brands, suitable for a wide variety of riding styles, terrains, and skill levels. Need help choosing? Our specialists are here to guide you in-store and online to find the perfect bike for you. Shop online or visit us in our Laval or Brossard stores to try different models.
