Saddle Up With Our Summer Adventure Guide—Shop Now
Home Page

Detail Images

Current Color

Evil Bikes The Insurgent LB Mountain Bike Frame

up to 15% Off
sale $2,804.98 Original price:$3,299.00

Select Style & Size

Find your size


Note: Actual inseam is not the same as pant inseam.

Recommended Size

Based on the measurements you entered, this is the size we recommend in this bike.

Our size calculator is a starting point for finding the right size for you. To get personal advice talk to one of our fit experts at 1.888.276.7130 or chat now

  • Yogurt Truck, XL
    sale $2,804.98

Add Protect+ Powered by Extend™

The Insurgent LB Mountain Bike Frame

While it seems like every new wonder bike to hit the market recently is a trail going 29er, there's a die-hard legion of 27.5-inch riders who realize that no amount of geometry tweaks or how light you get the wheels and tires, it'll never match the playfulness, quick turning, or confidence in the air that you'll find on bikes sporting a 548 ERD. Thankfully, brands like Evil provide freedom of choice and don't discriminate against wheel sizes and with its updated The Insurgent LB Mountain Bike Frame, you can build up a dream machine that's ready and able to slay both your favorite and new trails alike and help you get stylie in the park or blaze enduro courses. Much like the reconfigured Following MB and Wreckoning LB, it didn't have to change much, its bikes were pretty damn good from the get-go. Instead, Evil went about making some meaningful changes that didn't deter from what we loved about the ride and focused on things that if we had our way, we'd change. So rest assured that the Insurgent is still one hell of a capable bike that's at home hitting big features in the park or pedaling for hours on end during backcountry epics and this Insurgent LB or "little better’er" as Evil calls it, comes with the long-awaited move to stiffness enhancing Boost spacing, water bottle cage mounting on the medium through x-large sizes, a new, lighter carbon layup responsible for a half-pound weight reduction that also remarkably improves lateral stiffness and compliance, and of course, fresh paint to make your buddies jealous.

One thing that didn't change on this new Insurgent, and frankly, didn't need to, was a departure from the numbers and angles that have given it such universal acclaim. Having a look at the linkage reveals flip chips that alter the bottom bracket height and head tube angle. When dropped to the XLow setting, the bottom bracket hovers a mere 13in above the ground, while the head tube kicks back to a slack 65.2 degrees. Yes, those numbers were commonplace on freeride and DH bikes not too long ago, however, this is a bike that’s also at home pedaling and cornering as if its job depended on it, as evidence of its stubby 17in chainstays, so it's not a chore getting to choice sections of trail, and you'll be glad you're on it when things head downhill.

In contrast to more complicated, multi-pivot suspensions that populate the market, on The Insurgent, Evil uses its own linkage driven single pivot suspension design, dubbed Dave's Extra Legitimate Travel Apparatus, or DELTA for short. Dave is in Weagle, also of DW-Link and Split-Pivot fame, worked closely with Evil to create a platform that checked off every ride attribute it sought to achieve in a suspension design. When put to the test in real-world applications, DELTA is amazingly capable. Looking back at our field notes reveal words like "supportive cornering, excellent big-hit management, playful pop, and wonderful pedaling efficiency". So versatile is the ride provided from the wonderful suspension package that we wouldn't hesitate pulling it off the bike rack and subjecting it to any unknown trail network.

The DELTA suspension design was originally a platform meant for testing different suspension curves, and it's most basic, defining attribute is its virtually limitless adjustability. Given this evidence, it becomes apparent that The Insurgent's shock setup is far more important than on a non-DELTA frame. Lucky for us, Evil worked closely with its suspension suppliers for the proper tune and it includes a built-in sag meter to facilitate easy tuning without needing an abacus or slide ruler. Simply reset the dial, mount the machine, and add or remove air pressure as needed to achieve the prescribed 30% number. Once tuned, DELTA allows for a supple off the top feel with a supportive mid stroke for wallow free cruising and pedaling efficiency before ramping up and preventing harsh bottom outs during park shenanigans and on shuttle laps.

Evil didn't waste this excellent suspension platform to some substandard frame construction process and on all of its newer frames, it invested in building molds in a new factory that also happens to service most of the high-end manufacturers in the market. Given the logistics of carbon construction, this wasn't a simple process; however, anyone familiar with Evil's history will agree that it was necessary, and the frames we've handled definitely occupy the sharp end of the industry's quality curve.

The LB enjoys a lighter weight carbon layup that helps improve the overall ride quality, which correlates to more compliance without sacrificing stiffness where it's needed. Most impressively, it managed to drop nearly half a pound from the overall frame weight while still retaining the desired ride characteristics. This marvel of unidirectional carbon and one-piece molded construction is able to withstand the hardest hits on the most demanding trail and keep coming back for more.

Evil's website and its copy lead you to believe that it doesn't take itself too seriously and indeed it does have a more lighthearted approach than other staunch and stuffy brands, however, it's no less committed to the highest end manufacturing. Every frame's life begins with EPS and silicone molds. The carbon is laid up around these and then compacted from inside and out, resulting in uniform wall thickness and eliminating excess resin pooling and the kind of imperfections and structural weaknesses that might later lead to frame failures.

  • Evil's enduro machine with the little better'er treatment
  • Responsive pedaling and 6 plush inches of DELTA travel for enduros
  • Long, slack geometry adds confidence at speed
  • Lighter weight carbon construction also increases stiffness
  • 1/2 pound reduction from the frame and shock
  • Waterbottle cage mounts afford hot lap hydration
  • Geo is stable without feeling languid
  • The new Insurgent LB bring capability without compromise
  • Item #EVB000G

Frame Material
Wheel Size
Rear Shock
Rockshox Monarch Plus RC3 Debonair
Rear Travel
Head Tube Diameter
1-1/8 - 1.5in tapered
Headset Included
FSA intergrated
Bottom Bracket Type
Cable Routing
Brake Type
post mount disc
Seatpost Diameter
Rear Axle
12 x 148mm
Recommended Use
Manufacturer Warranty
3 years

Tech Specs

What do you think about this product?


>Rating: 5

Evil Insurgent LB - Awesome!

I've used it several times
True to size
Size Bought
5` 9"
185 lbs

I live in the mid west so don't have access to huge trails. I typically ride a local trail that's around 6 miles. It's technical, rooty, up down with no huge climbs or descents. Little bit of everything. The bike is advertised as a downhill beast. Not necessarily a trail xc bike which in theory would probably be better suited for the trail I ride. However, I love the bike. It handles everything I throw at it with ease. Climbs and descends just fine. Poppy, fun and moves quite well. Oddly enough, my lap times are quicker than the 29ner devinci I had prior. Other reviews knock on the low bottom bracket with pedal strikes. Not a problem with me. I have 165 mm cranks and one up pedals. That combo helps quite a bit. 27.5 wheels. Not the popular 29er. I find that for my size, 5"9" that 27.5 is better suited for me. 29 is a bit too much. It moves fast but not as fun. Purchased Large as I have arms like an ape. Have a longer reach for my size. Bike feels Perfect! Very Solid Bike Happy with the purchase