LVN140 MTB Frame | 140MM Rear Travel | Chromoly Steel Full Suspension MTB Frame

Original price was: $1,799.00.Current price is: $1,598.00.



SKU: LVN140_steel_mountain_bike_frame Categories: ,




Place Your Order Now for Priority Delivery – Contact Us for Lead Time Information

Please note that this is not a complete bicycle. The package includes items selected from the drop-down menus and those specified in the provided specifications.


Introducing the New LVN140 Chromoly Steel Mountain Bike Frame | USA Built – Full Suspension MTB Frame


Linkage Driven Performance

While a single pivot is enjoyable, introducing a link transforms it into something even more fun and competitive. Single pivot steel frames excel in agility, but when you add a link, the dynamics become even better. The addition of a link enhances resistance to bottoming out, facilitates easier shock tuning, and eliminates the complexities associated with multi-link maintenance.

Effortless Climbing

The LVN140 conquers technical hills with ease, offering ample travel to absorb drops, roots, and boulders. Our meticulously optimized Pivot Point ensures the bike delivers over 100% Anti-squat throughout its travel. This design ensures that when you pedal, the power is efficiently transferred to the ground, maximizing performance and minimizing energy wastage.

Durable and Confidence Inspiring

The LVN140 is our latest and greatest and is a culmination of all the things we have learned making steel full suspension frames. While steel is incredibly strong, when used in a bicycle frame the tubing wall thickness needs to be optimized for longevity and durability. We put in the work to ensure that the the the weight of this frame is low and centralized. What that means is when riding, is your frame is working with you providing confidence and stability thanks to optimized handling and performance characteristics.

Mid Pivot Balance

Our carefully calibrated mid-high pivot strikes the perfect balance on the trails. The regressive initial axle path counters a shrinking wheelbase during descents, providing stability. This balance prevents handling alterations and unpredictable characteristics during cornering, offering superior performance in various trail conditions.

CNC Machining Excellence

Elevating the frame’s feel, we incorporated CNC machined shock mount/pivot arms. The 4140 chromoly arms, despite being challenging to machine, exemplify the frame’s high-end quality. This commitment to precision machining ensures that our frame outperforms others in its class.

Single Pivot Steeze and Durability

Featuring a stainless steel pivot axle and double-stacked quad 6001-2rs bearings, our frame excels in longevity and rigidity where it matters most. The advantages of a single pivot design include easy maintenance, cost-effectiveness, predictable rides, and enhanced speed on steep descents.

Adaptable Design

Slider Dropouts provide fine-tuning of rear wheel adjustment to accommodate various tire sizes from different manufacturers. Our innovative approach ensures compatibility with your preferred wheel and tire sizes without compromising the qualities you desire in a chromoly steel frame.

Modern Specifications

Designed for a 73mm BSA bottom bracket, 148mm boost, internal cable routing for dropper seat posts, and tapered forks, the LVN140 incorporates all the modern mountain bike specifications in an exciting and high-performing steel frame package.

Additional information


Size 1, Size 2

Size Chart and Geometry

Geometry & Sizing

Sizing Tip:

We recommend short stems 32mm-40mm in length for proper sizing and handling characteristics. Pay attention to the Top Tube and Reach measurements, they may be different from what you’re used to do to our seat tube offset to clear the rear tire at full travel.

The LVN140 was developed with progressive geometry in mind. Utilizing slack geometry with 37-46mm offset forks provides a stable, fast and well handling steed.

Please feel free to Contact Us for sizing help.

(5’6″-5’11” / 167.64cm-180.33cm)
Size 2 (6′-6’3″ / 182.88cm-190.5cm)
Reach 465mm 485mm
Virtual/Effective Top Tube Length
613mm 648mm
Head Tube Angle
*Don’t love the HTA? Check out the Geoshift Headsets from Wolf Tooth Components. They can adjust your HTA by 1 or 2 degrees, your choice.
64.5° (150mm Forks) 64.5° (150mm Forks)
Seat Tube Angle 76.5° (150mm Forks) 76.5° (150mm Forks)
Bottom Bracket Drop 23mm 23mm
Wheel Base 1225mm 1260mm
Front Center 785mm 820mm
Seat Tube Length 450mm 450mm
Chainstay Length 440mm (adjustable +15mm) 440mm (adjustable +15mm)
Headtube Length 110mm 110mm



LVN140  Frame Specs

Frame Weight 12lbs/4.08kg To 13lbs/4.5kg (Size 1-3 – raw, no shock)
Headset Optional
Spec: ZS44-28.6/EC44-40 (Ferrum Branded)
Rear Axle Included
Spec: 180mm Length – 12×1.5 Thread Pitch
Derailleur Hanger Spec: Allotec C52
UDH Compatible via Paragon Machine Works UDH Sliding Dropouts Available for Purchase Here (Not Included)
Rear Wheel Travel 140mm
Rear Wheel Tire Clearance Up To ~27.5×2.5″ to 29×2.5″ with 35mm inside width rims. Tires vary by manufacturer. (Adjustable for smaller are larger wheels/tires)
Rear Shock 210×50
Shock Hardware 22x8mm Front and 15×8 Rear
Hub Spacing Rear BOOST 148mmx12mm (Axle Included)
Bottom Bracket Standard 73mm BSA Threaded
Forks Steerer Spec Tapered Forks 1.5″ > 1-1/8″
Max Fork Travel 180mm
Seatpost Diameter 31.6mm
Dropper Seatpost Cable Routing Internal
Seat Post Clamp 34.9mm (Included)
Hydraulic Disc Brake Mount Rear IS
Hydraulic Brake Disc Diameter Max (Rear) 203mm
ISCG-05 Recommended ISCG-05 BB Adapter as shown HERE

Why Chromoly?

Why Chromoly?

Chromoly is much stronger than traditional steel and aluminum alloys. Chromoly is the most earth friendly material that we’ve seen besides bamboo that’s being made into bicycles. Studies show that chromoly requires 6-11 times less energy and emissions than competing materials to mine, manufacture and process.

Most people looking to buy our frame will have their minds made up on chromoly steel frames and prefer this material for their next frame but if you’re new to or curious about this amazing material, here are some of the advantages you’ll hear from experienced riders:


Chromoly steel bike frames possess a natural flex that absorbs sounds. While not completely silent when contact is made with rocks or roost, the ride is very stately feeling. Focus on the path ahead, not nuisances.


You’re buying a bike that will stand the test of time with proper care and maintenance. Imagine owning a bike that can be welded and repaired rather than degrade and be thrown away. Most people consider the user-friendly nature of chromoly to be a very wise investment.


Our steel full suspension mountain bike frames are engineered with controlled flex, working with the natural characteristics of heat treated chromoly and stiffening it up where it’s necessary for maximum efficiency. Chromoly tubing for a mountain bike is very thin yet incredibly strong, it has an inherent flex that people strive for in order to reduce vibrations translated to their hands and feet which works to reduce rider fatigue and increase rider comfort. Ride longer, more comfortably and much harder. Slight flex in the rear keeps the wheel planted in sharp hard turns keeping you on two wheels.


Chromoly’s strength to weight ratio rivals that of titanium yet it’s more affordable. Rest easy knowing what you’ve accepted as norm, steel is strong. Imagine a high-tech, lighter weight yet stronger alloy of steel being made into a frame for your next mountain bike. There are pluses and minuses for every known material being made into a mountain bike frame but welded seems, not glued, is something we personal feel is more solid and secure. Metal melted to metal, not piece, glued to piece. Fancy marketing words will lead you to believe other materials are “one solid piece” (“Monocoque”) but research shows that’s misleading, it’s actually multiple segments glued together into one piece which is strong too for only a comparably very short lifespan. Ride safe though, we can’t be held responsible for your new found feel of steel, ride at your own risk, ride responsible.

Color Examples

Color Examples

Best Steel Mountain Bike FrameBest Steel Hardtail Mountain Bike FrameBest Steel Mountain Bike FrameBest Full Suspension Mountain BikesBest Steel 29er Full Suspension Mountain BikeSteel 29er Mullet FrameSteel Hardtail Mountain Bike



Original Owner:

Lifetime Repair
Terms of Warranty

Second Hand Owner:

4 Years Repair
Terms of Warranty


There are no reviews yet.

Be the first to review “LVN140 MTB Frame | 140MM Rear Travel | Chromoly Steel Full Suspension MTB Frame”

Your email address will not be published. Required fields are marked *