LV145 Steel MTB Frame | 145mm Rear Travel | Chromoly Steel Full Suspension MTB Frame


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SKU: LV-145-Steel-Full-Suspension-MTB-Frame Category:


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USA Hand Built Chromoly Steel Full Suspension, by Experienced Riders, for all Riders


What’s Included:

What’s listed in the drop down menus that you choose.
What’s stated as being included in the specs.


LV145 Chromoly Steel Mountain Bike Frame

Just now stumbling into the awesome world of Chromoly Steel? Or maybe you’ve ridden this amazing material and you’re not going to settle for anything less? Chromoly provides a feel that adds more excitement and satisfaction to your ride. Less noise, chatter and nuisance while minimizing harshness and providing a supportive feel are some of the benefits to chromoly steel mountain bike frames. If you’re new to the sport or a long time veteran, the benefits of chromoly steel are noticeable regardless and we are confident that you’ll find new confidence in your riding once you throw a leg over the LV145 and take it for a rip down your favorite trail.


100%+ Anti-Squat: Mid Travel Meets High Efficiency

With our design, you have to forget the idea that higher travel means less efficiency. This is a powerful combination that will take on hill that you want to throw at it while still having the travel to soak up the roots and boulders. The Pivot Point on our LV145 was optimized and obsessed over to bring to you a bike that delivers over 100% Anti-squat through it’s travel. When you pedal, you want your bike to put all the power into the ground and not into the suspension to go to waste. Every pedal stroke can force the system to soak up some of that energy causing you to wear yourself out faster. The biggest factor that determines pedal efficiency is the Pivot Point. Looking at our Anti-squat curve, you’ll see that the LV145 delivers over 100% Anti-squat throughout it’s travel.


Unreal Anti-Rise: Suspension Stays Active During Braking

During braking there is a force created that wants to cause the rear-end to rise, causing your suspension to extend and cease to work optimally, this is controlled by proper pivot placement and good design via Anti-Rise. Our anti-rise curve stays over 100% for over 105mm of travel, meaning your braking won’t affect your suspension action during this 0mm-105mm portion of travel. The last 30mm of travel, we have a gentle linear plot to 93% so you’re still in the zone where you’re in control of your bike’s behavior. It’s now up to you to learn the characteristics and master the ride.


Awesome Axle Path: Your Wheelbase is More Consistent

We discovered a balance that others are just now starting to find with our Pivot Point working it’s magic. The first part of the axle path is regressive, meaning it grows to counteract a shrinking wheelbase. When descending the chunk, having a bike shrink on you can alter your handling and negatively effect your ride. The opposite of that is having too regressive of an axle path can cause your wheelbase to grow too much in corners throwing your corner speed off and causing an unpredictable handling characteristic in the twisties. Our mid-high pivot is the balance that others are just now realizing is working for them better as opposed to going with either ends of the spectrum.


CNC Machining

We opted for CNC machined shock mount/pivot arms to help give our frame it’s high end feel. Nothing says “high-end” more than CNC machined parts, especially our 4140 chromoly arms which are not kind to tooling and extremely expensive to machine. We spared no expense to offer a frame that despite it’s simplicity, it’s overachieving compared to bikes that cost a lot more.


Single Pivot Steeze and Durability

Stainless steel pivot axle and quad 6001-2rs bearings double stacked for longevity and rigidity where it matters most. Thanks to modern suspension technology, single pivot is back. Why single pivot? Easy maintenance and easy on your wallet. The ride is predictable and it doesn’t get hung up as easily on impacts which allows you to carry more speed on those steep descents. It offers a brilliant balance of amazing ride characteristics, simplicity and durability.



Slider Dropouts enable fine tuning of rear wheel adjustment due to wildly variable tire manufacturer sizing measurements. We think outside the box, so we offer a solution to fitment of your favorite size wheels and tires without sacrificing anything you’d love in a chromoly steel frame.


Modern Specs

Made for 73mm BSA bottom bracket, 148mm boost, internal cable routing for dropper seat posts, tapered forks. All your modern mountain bike specs in a more progressive and exciting package.

Size Chart & Geometry

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



(5’5″/1.65m to 5’9″/1.78m)


(5’10″/1.78m to 6’2″/1.84m)


(6’2″/1.84m to 6’4″/1.98m)

Head Tube Angle

64° (160mm Forks)
64.5° (150mm Forks)
64° (160mm Forks)
64.5° (150mm Forks)
64° (160mm Forks)
64.5° (150mm Forks)

Seat Tube Angle

76° (160mm Forks)
76.5° (150mm Forks)
76° (160mm Forks)
76.5° (150mm Forks)
76° (160mm Forks)
76.5° (150mm Forks)

Headtube Length

110mm 110mm 110mm

Bottom Bracket Drop

30mm 30mm 30mm


465mm 485mm 510mm

Virtual/Effective Top Tube

597mm 614mm 617mm

Wheel Base


1208mm 1225mm 1248mm

Front Center

773mm 790mm 813mm

Seat Tube Length

405mm 425mm 455mm

Chainstay Length

435mm (adjustable +15mm) 435mm (adjustable +15mm) 435mm (adjustable +15mm)


Modern Specs in a Steel Package


Frame Weight

8lbs 14oz/4kg To 10lbs/4.5kg (Size 1-Size 3 – raw, no hardware, no shock)


Not Included
Spec: ZS44-28.6/EC44-40 (example: Cane Creek Part Number BAA0717K or other brand)

Rear Axle

Spec: 180mm Length – 12×1.5 Thread Pitch

Rear Wheel Travel

~145mm (Axle Path)

Rear Wheel Tire Clearance

Up To ~27.5×2.6″ to 29×2.5″

Rear Shock

200x50mm (7.875″x2″)

Shock Hardware

22x8mm Front and 40x8mm Rear

Hub Spacing Rear

BOOST 148mmx12mm (Axle Included)

Bottom Bracket Standard

73mm BSA Threaded

Max Fork Travel


Forks Steerer Spec

Tapered Forks 1.5″ > 1-1/8″

Seatpost Diameter


Dropper Seatpost Cable Routing


Seat Post Clamp

34.9mm (Included)

Hydraulic Disc Brake Mount Rear

IS Mount (Example: Use Magura adapter QM-9 for 203mm rear rotor or Magura QM-41 for 180mm rear rotor)

Hydraulic Brake Disc Diameter Max (Rear)



Recommended ISCG-05 BB Adapter as shown HERE

DVO Forks Specs

DVO Forks Specs

Diamond Boost Fork Specs


High/Low Speed Comp. – Rebound – OTT


27.5=150-170 | 29er=140-160 (29er 170mm Coming Soon)

Standard Offset Crown

Offset: 27.5=44mm | 29=51mm

Short Offset Crown

Offset: 27.5=37mm | 29=44mm

Axle To Crown

27.5 = 565mm | 29 = 572mm (at max travels)


35mm Tapered Aluminum Alloy

Wheel Size

27.5 & 29


15mm Boost

Steerer Options

Tapered Aluminum Alloy

Brake Disc

Direct Mount 160mm (Post)


Onyx SC Boost Fork Specs


High/Low Speed Comp. – Rebound – OTT



Standard Offset Crown



Magnesium, Disc Only

Axle To Crown

575mm (at max travel)


36mm Tapered Aluminum Alloy

Wheel Size

27.5/650b: Up to 180mm
29er: Up to 180mm


15mm Boost

Steerer Options

Tapered Aluminum Alloy

Brake Disc

Direct Mount 180mm (Post)

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:

3 Years Repair or Replacement Materials and Workmanship Warranty

Second Hand Owner:

2 Years Materials and Workmanship from Original Owner’s Purchase Date

Warranty Terms


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