Ibis Cycles Reveals Fourth Gen Mojo HD Trail Bike – The HD4

The new Mojo HD trail bike is Ibis Cycle’s fourth generation model and is called — the HD4. Revealed just a couple of months ago, the HD4 has the latest design features and components as a part of Ibis’s plan to incorporate the most efficient and innovative ideas in this newest trail bike.


p5pb11642720Ibis Cycles HD4

Mojo HD trail bike

  • Confidence inspiring geometry
  • Outstanding suspension linkage
  • Great pedalling efficiency


Built for the trails, the HD4 has 27.5” wheels and an incredible 153mm (6 inches) of rear wheel travel — this is accomplished by the addition of the latest model of the dw-link suspension design used in this fourth gen bike.

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The company, Ibis Cycles, stated that they built “on the success of the HD3 and its predecessors” but the HD4 “has been further refined and optimized to handle the steepest, most aggressive terrain found worldwide. Testing [was conducted] throughout Northern California’s most rugged backcountry trails and also by members of our Enduro Series team.”

Enduro Race Team Ibis Cycles
Enduro Race Team

Increase in Size Range

Finally — the HD4 is now suitable for a wider range of riders. This new model has a slacker, 64.5 degree headtube angle — which increases the size range.


Design Changes

In addition to the 27.5” wheels and 150mm of rear wheel travel, Ibis also claims that the suspension linkages are stiffer. The company also shortened the seat tube height and increase its bore depth to allow longer-drop dropper posts.

 The HD4 also features an increase in shock leverage curve, which will give riders a better huge hit performance. The re-engineered carbon layup is also perfect for adding greater frame stiffness overall. 

Technical Specifications and Features:

  • Frame: Carbon Fiber Monocoque Frame and Swingarm
  • Internal Cable Routing: Super Versatile Routing, Including Internal Dropper Routing
  • Tapered Head Tube and Steerer
  • Polycarbonate Down Tube Cable Guard (Included)
  • 160mm Post Mount, 203mm Max Rotor Size
  • Chain Stay Length: 16.9”
  • Threaded Bottom Bracket
  • BB: Height with Tire Sag same with 2.3” — 2.8” Tires
  • Headset: ZS56 Lower Headset
  • ISCG 05 Compatible with Removable Adapter is Available
  • Suspension: dw-link Suspension
  • Standard Shock: Fox Float 7.875 x 2.25” with Custom Damping Settings
  • Upgrade Shock: Fox Float X2, with Climb Switch, 7.875 x 2.25”, Rider-Tunable Damping Settings
  • Boost 148mm Rear / 110 Front Axle
  • 6” (153mm) of Rear Wheel Travel
  • 160mm Travel Fork Recommended — Approved for 170mm
  • Head Angle: 64.9 Degrees
  • Dual Row Angular Contact Bearings on the Drive Size of the Lower Link (Large: 28mm x 15mm x 7mm Radial Bearings on the Non-Drive Side for Stiffness and Long Wear)
  • Tires: Accepts 27.5-inch Tires in 2.3”, 2.5”, 2.6”, and 2.8” Plus Sizes
  • Easily Accessible Water Bottle



The HD4 now features a completely new geometry design, with a focus on speed and stability for the roughest of trails. With big-hit performance through increased progression in the shock tube and and a 64.9 degree head tube angle, this bike can accommodate a greater reach across the board (4mm on a small and up to 34mm on an extra large).

travel air time

With compatibility for the longest droppers and a carbon layup, which yields superior stiffness, you can customize and ride the trails your way. 30 percent stiffer upper link and 40 percent stiffer lower link.

This fourth generation model uses Dave’s most efficient system to day: the dw-link v5 kinematics.

As for the headset, Ibis uses the ZS56 lower headset. This allows a greater gap between the top and down tube, which makes the front end stronger with no penalty on weight. You can use different Cane Creek headsets or the Chris King InSet 2 headset.


The routing is also extremely versatile thanks to the cable port system. You can run full housing or interrupted housing — interrupted housing using Ibis’s available cable stops will save 55 grams in weight over a fully run housing, if that helps.

water bottle

The shocks — the 2018 shock that comes with this model is available in the HD4 NX kit that arrives June 13th. It is a custom tune designed especially for this bike and is a new shock.

An upgrade is available for shocks on every kit, such as the 2018 Factory Series Fox Float X2 with Kashima coating. On both shocks, Ibis engineered more progression into the shock leverage curve, which will give you big air time and big-hit capability in some tough terrain.

To setup sag, go for 14 — 18mm / 25 percent — 30 percent.


And the wheels — well, this Mojo HD can fit a tire up to 2.8 inches on the 27.5 inch wheels. You’ll have a blast on this trail bike by Ibis.



The Mojo HD HD4 trail bike will be available in two colors:

  • Fireball Red
  • Anejo Silver & Lime


The complete bike pricing will range from $4,200 to $9,400, depending on whether you purchase a frame and/or depending on the built and parts you choose.

Take a look at the bike on Ibis Cycle’s webpage here: https://www.ibiscycles.com/bikes/mojo_hd4/. You can also begin to configure your ride immediately on the main site, where you can choose your size, frame, built kit, and upgrades / parts.


Final Thoughts

The Ibis Mojo HD4 doesn’t look like much on paper, but it rides better than most bikes out there. If you’re looking for a great all-arounder that will make you smile when you ride it, the Mojo HD4 is the bike for you. The latest evolution of the Mojo HD is smoother and more stable than its predecessor, making it even faster and composed through rough terrain.