Fugitive All mountain / Adventure

Knolly’s engineering

We are freaking fired up to announce the release of the Fugitive, our first 29er, which delivers incredible traction, downhill stability and a smooth ride on any terrain.

Our newest model was developed to meet the growing demands for a 29” so the Fugitive debuts with the highest level of pedaling platform of any Knolly model, yet it still maintains the legendary composure in the rough that Knolly is known for.

Our riders wanted an epic bike that could take them into the backcountry, attack the biggest descents, efficiently climb steep technical trails and adapt to any route to provide a comfortable ride on long beautiful single track trails.

Knolly’s engineering

After determining rider requirements for a new 29er generation, we started from the ground up to design our Fugitive model.

Considering past trends and manufacturing innovations, every Knolly frame part, feature, and production process was toiled over leading to significant investment in new molds and tooling.

Current industry standards were reviewed, adopted and tweaked to produce a bike that’s worthy of a category in its’ own.

Knolly’s engineering approach involves a fresh perspective and a promise of achieving only the best. In an industry fixed on releasing new products as quickly as possible, we did something borderline insane.

With the Fugitive model, we committed an extra 18 months beyond the normal new product development timelines to research and development.

Knolly’s engineering

Innovation through Partnerships

Knolly’s new pivot bushing technology was developed with Igus, the world leader in polymer bushings.  Working closely with Igus, we developed a new pivot bushing advancement and when combined with their high-end roller bearings, they deliver less friction and added durability for the Fugitive and all frames going forward. Igus products are used throughout the bike industry in frames, forks, rear shocks and other parts that rotate and/or slide.

Innovation through Pioneering

The Fugitive is the beginning of Knolly’s Gen 5 alloy and carbon frame platform, which meant a massive investment in tooling for the next phase. Our commitment to producing the best aluminum suspension mountain bikes led to pushing the boundaries of highly manipulated tube-sets and an extensive use of sophisticated forgings throughout the Fugitive’s construction.

Every detail including the tube cross-section and width were designed in 2D and 3D to ensure uncompromised performance for the rider. The new seat tube, a key structural part of the frame, explores the limits of hydroforming technology.

Throughout the frame, we sourced exotic aluminum alloys to deliver reduced weight, improved reliability, and unlimited length dropper post compatibility. And using only the best materials, we incorporated custom CNC machined 6Al-4V Titanium fasteners to reduce weight and increase mid-linkage stiffness.

Knolly’s engineering

Engineering with Purpose

Knolly fully committed to the already existing 157mm rear hub spacing, branding it 157TRAIL, and was able to implement this with rear end heel clearance equal or better than existing 148 bikes.

This decision allowed us to eliminate tire width and focus on designing the bike solely based on tire diameter. As a result, the Fugitive supports 29” wheels but it can also run 27.5” Plus x 3.0” wheels/tires with minimum compromise to the BB height.

“The 29’er Fugitive is a product of years of research, design and engineering. We produced a bike that we believe will deliver unprecedented rider performance. The Fugitive has an all-star feature list that includes new suspension linkages and pivots, 175-200mm dropper posts, fully internal cable routing and 2 geometry positions. These features combined with our proven patented Fourby4 suspension, create a package that instills confidence in any terrain.”

-Noel Buckley, Knolly Bikes CEO/Chief Engineer

Black Cherry / Chrome

Knolly’s engineering

Raw / Orange

Knolly’s engineering

Le Mans Blue / Orange / White

  •  Rear Travel: 120mm/135mm
  •  Fork: 140-150mm
  •  Wheel Size & Max Width: 29”x2.6” and 27.5”x3.25”
  •  Rear Axle: 157TRAIL x 12mm
  •  Up to 200mm dropper compatible on all frame sizes
  •  73mm threaded BB with removable ISCG05 chain guide tabs
  •  Max. 38t single ring / Dual ring compatible
  •  Trailside adjustable geometry
  •  Clearance for water bottles of all sizes
  •  Removable downtube protector that doubles as Shimano Di2 battery holder
  •  Full internal routing
  •  Shares its suspension and frame parts with next-generation Knolly bikes to ensure ease of bike maintenance/service and inventory management between models

Knolly’s engineering

Sizing Guide

Knolly’s engineering

The ethos of Knolly’s frame designs is to allow the rider to transition effectively between a highly efficient pedaling position and the “attack position” required for aggressive riding (and be comfortable anywhere in between).

The key feature allowing this seamless transition is the offset straight seat-tube, which positions the saddle in an efficient & comfortable climbing position, then moves the saddle downward and forward in the dropped position.

Knolly pioneered this technology back in the early 2000’s, and it’s now becoming the de facto way to design most modern mountain bikes. This design element is critical in allowing maximum rear wheel travel while keeping rear suspension elements and the rear wheel away from the seat tube under full compression.

Offset Straight seat-tube advantages are:

  • The actual seat-tube location can be designed so that the bike has a steep effective seat position when pedaling and/or climbing (74.5°– 75.5° effective seat tube angle). (The blue dotted line running from the BB to the seat in the illustration below)
  •  The saddle not only lowers, but moves forward when dropped, allowing more room to maneuver above and behind the bike (The red dotted lines in the illustration below).
  •  The longest possible dropper posts will fit into the frame because the seat-tube is straight and
  • uninterrupted: many of our frames will support 175mm and even 200mm dropper posts. It’s commonplace for our smaller riders (5’1” – 5’2” in height) to be able to use 150mm dropper posts in their frames. (The green dotted line in the illustration below)
  •  No possibility of rear wheel / rear suspension elements colliding with the seat tube/saddle under full compression.
  •  Amazing stand-over clearance.

Effective Top Tube explained.

The definition of Effective Top Tube (ETT) length and how it compares to the traditional Actual Top Tube (ATT)measurement can be confusing.

Almost all modern full suspension mountain bikes use an ETT because conventional seat-tube locations do not integrate well with today’s modern bike geometries.

This is why Reach and Stack measurements have become more relevant in the industry. When deciding on bike fit: ETT, Stack, and Reach are the best measurements to use.

Some notes on ETT vs ATT:

  • Our ETT and ATT are designed to intersect with the saddle at normal pedaling height: this ensures that the ETT accurately represents the ATT when pedaling.  Given that the angle between the ETT and ATT is typically well under 10 degrees, the saddle position won’t deviate far from the theoretical for riders who are slightly above or below the ETT / ATT intersection point (this is illustrated by the blue and green dotted lines as they converge near the rails of the saddle).
  • It is difficult to accurately measure the ETT with a tape measure: this measurement is designed into the frame which is then manufactured accordingly (illustrated by the horizontal blue line “A’ above).
  • Many riders measure the ATT (“B” in the illustration above) and become concerned that they’ve purchased a frame that is too small for them.  However, the ATT will always measure 1.0 – 1.5″ (25-40mm) shorter than the ETT for Knolly frame models.
  • If a bike is sized correctly no rider will position their saddle anywhere near the horizontal line drawn between the seat-tube (post) and the center of the head tube (the horizontal blue line “B” in the image above). In fact, most riders saddles are significantly higher than this line so the ATT is not a good indication of top tube length.
  • The difference between ATT and ETT will vary slightly between frame model and size.
  • We measure our effective top tube lengths off a line that extends from the center of the BB at roughly a 74° angle (image is not the engineering drawing so it is just a representation). (This is the blue line running from the BB to the seat in the image above).
  • The higher your saddle is, the closer it gets to this line. You can see in the image above that the center of the saddle intersects this ETT blue line.

Our Fugitive takes the 29er trail bike and raises it to another level. Built to be an epic trail smasher it has the highest level of pedaling efficiency we have engineered into our bikes and yet it still maintains that famous Knolly traction. Push the limits of what you can climb, push the limits of how far you can ride and push your limits on every descent. The Fugitive is ready for it.

Knolly Bikes