Ibis launches the HD4

The fourth generation of the HD re-made for the rigors of enduro

Ibis has revamped the HD platform making it longer, slacker and better suited to the rigors of modern enduro racing.

In fact, the HD4 has already had a strong showing on the race circuit. Four members of the Ibis Cycles Enduro Race Team rode the new bike to top 10 finishes over the weekend at the latest stop on this season’s Enduro World Series in Wicklow, Ireland, to retain the top spot in the team standings.

Ibis HD4 highlights

If Fireball Red is not your thing, the HD4 is also available in Añejo Silver and Lime
If Fireball Red is not your thing, the HD4 is also available in Añejo Silver and Lime
  • Longer and slacker than previous versions
  • 153mm rear travel
  • Stiffer frame and linkages
  • More progressive leverage curve
  • Designed around 27.5in wheels
  • Clearance for up to 2.8in wide tires
  • Threaded bottom bracket
  • Available now

Now in its fourth generation, the HD4 has nearly the same rear wheel travel of its predecessor. It gets a very slight increase in rear travel from 150 to 153mm as a result of some suspension tweaking, but departs significantly from there.

The new bike is significantly slacker than the HD3, which had a 66.6-degree head tube angle. The front of the HD4 has been relaxed to 64.5 degrees when measured with a 160mm Fox 36 fork.

Another nod to modern enduro trends is the increased reach measurements across the four-bike size range, from 4mm on the size small to a 34mm increase on the XL model. Essentially, every frame moves up a size in terms of reach when compared to the previous bike. 

The new HD4 is longer and slacker than its forefathers
The new HD4 is longer and slacker than its forefathers

The HD4 features a shorter seat tube with a deeper bore, increasing the frame’s compatibility with longer stroke droppers. Ibis lists a compatibility chart on the HD4 page that will help riders determine how long they can go — from 100mm all the way to 175mm on some dropper models.

Ibis claims the HD4's upper link is 30% stiffer and the lower link is 40% stiffer than those used on the HD3
Ibis claims the HD4's upper link is 30% stiffer and the lower link is 40% stiffer than those used on the HD3

Ibis worked with suspension designer Dave Weagle to revise the bike's kinematics. The HD4 is more progressive, which should make it better able to cope with large, high-velocity impacts. Ibis notes that coil shocks are still not recommended with the new bike. 

Got snacks? Blackburn's Porkchop bag is a nice option for the HD4
Got snacks? Blackburn's Porkchop bag is a nice option for the HD4

This enduro racer follows in the footsteps of the shorter-travel Mojo 3 when it comes to tire clearance. The HD4 can accommodate 27.5in tires up to 2.8in wide.

Visit www.ibiscycles.com for more information.

Josh has been riding and racing mountain bikes since 1998. Being stubborn, endurance racing was a natural fit. Josh bankrolled his two-wheeled addiction by wrenching at various bike shops across the US for 10 years and even tried his hand at frame building. These days Josh spends most of his time riding the trails around his home in Fort Collins, Colorado.
  • Discipline: Mountain, cyclocross, road
  • Preferred Terrain: Anywhere with rock- and root-infested technical singletrack. He also enjoys unnecessarily long gravel races.
  • Current Bikes: Trek Remedy 29 9.9, Yeti ASRc, Specialized CruX, Spot singlespeed, Trek District 9
  • Dream Bike: Evil The Following, a custom Moots 27.5+ for bikepacking adventures
  • Beer of Choice: PBR
  • Location: Fort Collins, CO, USA

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