The 6 Best Carbon Fiber Mountain Bikes of 2021


Best Carbon Fiber Mountain Bikes

The best mountain bikes can offer a lot for riders depending on their riding styles, budget, driving tastes and local trails. There is a bike for every racer and for every type of riding starting from cross country racing to park riding.

Carbon fiber mountain biking has improved a long way in recent times and the best of carbon bikes are able to withstand the most aggressive rides pretty simply. The rider is able to experience the complete advantage of carbon fiber bikes in all driving styles and types.

Carbon fiber is tough and stiff compared with aluminum alloy and renders a distinctly smooth ride in all trails. Carbon can mold into complex shapes and most manufacturers take this advantage to craft new radical bike frame designs in carbon fiber mountain bikes.

These bikes have the most innovative suspension design which manages to keep the center of gravity as low as possible for a safe ride. We have listed the top best carbon fiber mountain bikes along with the guide to choose the best carbon bike.


The 6 Best Carbon Fiber Mountain Bikes – [2021]

  1. BEIOU Carbon Fiber 27.5 Mountain Bike
  2. Eagle Z-Series Carbon Aero Road Bike
  3. SAVADECK Phantom 2.0 Carbon Fiber Road Bike
  4. Carbon Fiber 700C Road Bicycle with Shimano
  5. Diamondback Bicycles 5C Carbon Full Suspension Mountain Bike
  6. Steppenwolf Tundra Carbon Race Hardtail 29er MTB

Best Carbon Fiber Mountain Bikes

Best Carbon Fiber Mountain Bikes Reviews

#1. BEIOU Carbon Fiber 27.5 Mountain Bike

BEIOU-Mountain-Hardtail-Bicycle-Ultralight 2Features:

  • Weight: 33.1 pounds
  • Material: carbon fiber
  • Air fork suspension, disc brake
  • Ultralight, portable and durable
  • 3k Matte Black finish
  • Frame: carbon fiber unibody frame

The BEIOU carbon fiber mountain bike is the best fit for novice riders. Beginners generally feel a rush to ride on mountain rails and there is a high possibility for them to tumble. The BEIOU mountain bike serves as an excellent companion for them as its heavy wheels give them tight grips.

BEIOU-Mountain-Hardtail-Bicycle-Ultralight 2The bike is also durable to accept many hits during trails. The bike is of carbon fiber and features the best disc brakes and air fork suspension. It is ultralight and weighs only 10.7 or 11.8 kgs. Its 3K matte black finish gives it a glossy finish and is the best fit for cycling enthusiasts and entry-level mountain riders.

Its design is durable and sturdy and offers excellent support for entry-level bikers. The wheels are sturdy enough to carry average sized adult without much hassle. The cycle is of carbon fiber which weighs less than most other metals. It is also extremely portable and its frames are of carbon fiber, which is resistant to damage and rust.

Best Mountain Bike

#2. Eagle Z-Series Carbon Aero Road Bike


  • Weight: 25 pounds
  • Carbon wheels and handlebars
  • Lightweight with high-quality carbon fiber
  • Aerodynamic tubing, frames, and construction
  • Adjustable seat angle track
  • 100% satisfaction guarantee.

The Eagle Z series Aero road bike has an advanced aerodynamic design, paired with the best available materials. It has the perfect blend of control, comfort, and performance. The Z3 series has carbon wheels, carbon handlebars, and electronic shifter and derailleurs.

The bike is extremely lightweight and is of high-quality carbon fiber make. It has the best vibration damping functionality, thereby enhancing comfort and decreasing fatigue.


Even while riding in tough terrains, the drag is considerably less owing to its precise carbon construction and aero frame tubing. The bike maintains stiffness while handling and is extremely versatile with its seat angle track.

The size of the bike depends on the height of the rider for an aerodynamic riding position. It is possible to achieve optimal fit an for all styles of riding and the product comes with a 100% satisfaction guarantee with complete money back policy.

Best Mountain Bike

#3. SAVADECK Phantom 2.0 Carbon Fiber Road Bike


  • Weight: 17.2 pounds
  • Carbon fiber frame bike
  • Aerodynamically contoured
  • Dynamic sport tires
  • Best internal cable routing
  • Includes free pedals

The Savedeck Phantom carbon fiber road bike features a carbon fiber frame handlebar, fork, frame, and wheelset and seat post. The bike is of lightweight material and its design renders the best compliance. The bike carries the best speeds, from its front and rear derailleur and V brake system. Its 170 mm crank set and the 11-28T free wheel enable to start and operate the ride efficiently along durability and smooth shifting.

AVADECK-Phantom-Bicycle-Shimano-MichelinThe stays of the bike, its seat tubes and seat posts all ensure aerodynamic contouring. It features the best internal cable routing system that ensures excellent and clear airflow throughout the bike. Its head tube is tapered and strengthens the torsion rigidity so as to offer the rider a better handling system.

The factories in the USA assemble the bike and include free pedals with its shipping. New bikers can assemble the bike within seconds as all of this component parts are hand built. Its brakes and derailleurs are pre-adjusted as well.  The user only needs to put on the front wheel, seat, and pedals and pump up the tires for the ride.

Best Mountain Bike

#4. Carbon Fiber 700C Road Bicycle with Shimano 

Carbon Road Bike SAVA HERD6Features:

  • Product weight: 18.9 pounds
  • Carbon fiber frame
  • Extremely lightweight
  • Assembled complete road bike
  • Features dynamic sport tire
  • Includes free pedals

Carbon fiber road bicycle with Shimano is a lightweight and stiff carbon bikes that weighs 8.3 kg. It has been designed to render the best compliance and its wheelset, fork, frame and the handlebar seat post are all made of carbon fiber frames.

Other important features of the bike are shift levers, front and rear derailleurs, free wheel, V brakes, and crankset. The bike helps even entry level bikers to start and operate their rides effectively with smooth shifting even in tough terrains.

Carbon Road Bike SAVA HERD6The seat posts, tubes, wind tunnel, and the stays have aerodynamic contouring. Excellent and clean airflow over the entire bike is instituted by its internal cable routing. Riders gain a better handling and rigid torsion from the tampered head tubes of the bike.

The T800 carbon fiber wheelset has a 50 mm bearing and features a dynamic sport tire. Free pedals come with shipped along with the completely assembled road bike.

Best Mountain Bike

#5. Diamondback Bicycles 5C Carbon Full Suspension Mountain Bike

Diamondback Bicycles Features:

  • Light weight and durable
  • Available in five size options
  • 85% pre-assembled parts
  • Best link suspension system
  • Carbon fiber frames
  • 5 inch wheels and tubeless tires

The diamond back 5C carbon full suspension mountain bike is available in five different sizing,

  1. Extra Small=5′-5’3″,
  2. Small=5’3″-5’6″
  3. Medium =5’6″-5’9″
  4. Large=5’9″-6′
  5. Extra large=6′-6’4″

The bikes have partially disassembled parts and are shipped in a sealed factory box. The bikes are generally 85% assembled and requires installation and adjustment of its parts. The bike is built on new-school technology with the best link suspension systems.

It design allows the prompt acceleration even on steep climbs to help clear the path with ease and efficiency. The modern geometry of its designs along with its carbon fiber frames extends its stability at extreme speeds without compromising the agility.

Diamondback Bicycles 2

Other remarkable features of the bike are its top shelf component package, seat post, 27.5 inch wheels and tubeless tires. It serves as the best compassion in fulfilling all the rides in the list of the biking enthusiasts. With pertinent pre-assembling, it takes only 30-60 minutes to assemble the bike.

Best Mountain Bike

#6. Steppenwolf Tundra Carbon Race Hardtail 29er MTB

Steppenwolf Tundra Carbon Race Features:

  • Schurmann SDR disc wheels
  • FAS afterburner seat post
  • Avid 180/160 mm brakes
  • Rock Shox 100 mm remote fork
  • Brakes: Avid Elixir 3 180/160 mm brakes
  • Handlebars: Easton EA50 Flat 685 mm handlebars
  • Internal cabling
  • Lightweight carbon frame body

The Steppenwolf Tundra carbon race bike is an excellent example of quality bikes. The bike has been made with the highest quality standards and appeals to the needs of both novice and expert bikers. Made in Germany, it is the boss of all trails and adventures without any limitations.

The bike has combined race genes with good distance sense, and thus preserves smoothness in all driving motion. Its short rears and the steep steering angle helps to support its agility. The bike maintains smoothness and is dynamic and sensitive both in uphill and downhill rides.

Steppenwolf Tundra Carbon Race The bike features SDR disc wheels with FAS afterburner seat posts. it  180 mm brakes for hassle free riding and 100 mm remote forks. Its Avid Elixir 3 brakes helps with flawless driving in sharp turns and steeps.

The 685 mm Easton handlebars helps with sustained driving in all terrains without bothering the shoulder and wrist joints much. It’s internal cabling helps in proficient air circulation and makes the entire ride hassle-free for the biker.

Best Mountain Bike

Things to Consider in Choosing The Best Mountain Bike

Best Mountain Bike

  • Rigidity
  • Hardtail
  • Suspension
  • Frame Materials of Mountain Bikes
  • Gears
  • Brakes
  • Bike maintenance



Rigid mountain bikes feature less or no suspension. They are pretty easy to maintain and are less expensive. Most of the fat bikes with wide tires are rigid, because their low tire pressure renders all the rigidity and absorbs all the bumps on the trail. But majority of the bikers prefer bikes with excellent suspension for comfort.



Hardtail mountain bikes feature a suspension fork at the front which helps in absorbing all the impact on the front wheel, the rear end of the bike has no suspension and thus termed as the hardtail. These bikes are less expensive compared with full suspension bikes with less moving parts. For a completely rigid bike, most hardtails have the ability to lock the front fork for some time.

Hard tail bikes are the bikes of choice for cross country riders as they gravitate towards hard tails. These bikes allow direct transfer of power between the rear tire and the pedal stroke. Hardtails cost less and are easy to maintain and are thus the bikes of choice for all bikers except for those involved in downhill trails.



The front fork and the shock absorber at the rear absorb all the impacts of the trails in the full suspension bikes. This reduces the overall impact on the rider, improves traction and renders an enjoyable ride.

A bike with full suspension can accept a lot of trails bumps but can lose some of its energy while climbing up the trail. Most of these bikes are also able to lock out the rear suspension for better power transfer and efficient climbing.


Frame Materials of Mountain Bikes:

The frame material of the bikes influences its strength, weight, ride quality, longevity and also its cost. Aluminum alloy is the commonly used material for these mountain bike frames, though some expensive models have lighter frames with advanced manufacturing process and tubing designs.

Other frame materials of choice are carbon fiber, titanium and steel. Steel is cheap, tough and renders a smooth ride, but is heavy for a mountain bike.

Titanium is strong and also light and is pretty expensive than the other materials. Carbon fiber is common for fat bikes, cross country bikes, high end trails and all mountain bikes. Carbon fiber has excellent strength and low weight and induces labor intensive manufacturing process.



The number of gears is the product of the number of sprockets on the cassette and the number of rings in the front chain. Mountain bikes can have any number of gears from a single speed to 30 or even more. The number of gears that a bike should possess is directly proportional to the fitness level of the rider and the terrain they are riding in.

If the biker rides in steep hills, they might find climbing challenging and thus require bikes with more gears. For mountain bikers who ride on flat terrains, fewer gears are enough to power up the hill. Biking earing is easy to modify after a bike and is not a primary concern while buying it. Fewer the gears, lighter the bike and vice-verse.



Mountain bikes feature Disc brakes and this has replaced the rim brakes on even the entry level mountain bikes. Disc brakes have brake pads that grip on the brake rotor that mounts on the wheel hub.

There are two versions of the disc brakes, hydraulic disc brakes and cable activated brakes. Hydraulic brakes are progressive and offer strong braking with less finger effort. They also adjust for the brake pads. Cable activated brakes require a lot of manual adjusting.

Disc brakes are advantageous over rim brakes, as they offer a more consistent braking in all the conditions. It is cheap to replace a worn rotor rather than to replace the entire wheel. Disc brakes have excellent performance in wet and steep terrains with minimal strain on the fingers. But, it is difficult to inspect and replace the pads and is expensive to service compared with rim brakes.


Bike maintenance:

It is important to check the mechanical safety of the bike before taking it outdoors. The suspension settings of the bike should also be adjusted according to the body weight of the rider. Before setting out for the trail, all the essentials for repair and maintenance should be kept handy, such as patch kit, spare tube, tire levers, multi-tools, chain lube etc.


Recent trends with mountain bikes:

Mountain bikes have been undergoing considerable changes as times passes by and here we have the most recent trends and upgradations with carbon fiber mountain bikes:

  • Long front centers
  • Steeper seat angles
  • Plus tires are no longer popular
  • Fork offsets are losing their popularity
  • Introduction of front derailleurs


Long front Centers:

Reaches and the front centers are becoming longer with mountain bikes. Along with longer reaches, the head tube angles also lengthen enhancing the front center and the wheelbase of the bike. This additional length keeps the rider at the center, between the wheels and makes the bike feel stable and secure in steep terrains.

Sometimes, the bike with longer reaches gets less stable at lower speeds, becoming harder to maneuver. The rider needs to be more judicious about adding more weight on the front wheel at turns and corners.


Steeper Seat Angles:

Mountain bikes are gaining steep seat angles, similar with triathlon bikes recently. The angles are as steep as 76 degrees helping the rider to pitch on their favorable climbing position. Steep seat angles help frame engineers to move the seat tube out of the way, reduce length of chain stay, and use bigger tires and wheels on their frames. Steep seat tube also prevents binding of dropper posts for travel.


Plus Tires Are No Longer Popular:

The plus width tires of dimensions 2.8-3.0 inches are losing popularity whereas 2.6 inch mid gat tire dimensions are trending. While plus tires have added advantage of additional stability for novice riders, their popularity is decreasing considerably.


Fork Offsets Are Losing Their Popularity:

Before few days, the hot trend in mountain geometry was enhanced fork offset. Most brands had their fork offset to 51 mm previously. Such enhanced fork offsets results in fewer trails. And thus the steering wheels feel light and less stable at low speeds. Bikes at recent times are returning to use short offset fork at 44 mm. such short offset forks results in enhanced front centers. Wheel base length also enhances helping in longer reach and slacker head angles.


Introduction of Front Derailleurs:

Frame designers are able to accommodate a front derailleur in modern bikes with the advent of drivetrains, reliable chain retention and additional space. This extra space is meant for getting the frames stiff, light and also to improve the pivot size and placement of full suspension bikes.



Mountain bikes render excellent adventurous experiences and memories, depending on the riding styles, bike type and the local trails. There are bikes for different riding trails, starting from park riding to mountain steep climbing and cross country riding. We have listed the top 6 best fiber mountain bikes here. We hope our list along with the guide for choosing the best mountain bike benefits our readers in their outdoor cycling endeavors.


For more of our top gear recommendations, check out these popular outdoor gear guide links : Best Snowboard Goggles | Best Snowboarding Gloves | Best Snowboarding Jackets for Men | Best Women’s All Mountain Skis | Best Beach Cruiser Bicycles For Men and Women | Best Folding Bikes | Best Bike Headlights | Best Carbon Fiber Mountain Bikes | Best Hybrid Bikes for Men & Women

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