Synthesis Enduro 11 Mixed Carbon Wheelset

The ultimate racing combination.

Boost XD I9
Boost HG I9
Boost Micro Spline I9

The ultimate racing combination.



  • 29 Front/ 27.5 rear mixed wheel set
  • Tuned Front and Rear Carbon Wheel System for enduro riding and racing.
  • Front and rear specific wheels tuned and optimized to address the specific performance requirements and loads of mountain bike riding.
  • Compliant tuned front wheel improves handling and maximizes grip and control in turns. Wider inner rim width supports wider tire profile in front, increased volume and contact patch, and rounds tire profile to enhance turning.
  • Stiff tuned rear wheel supports peak loads and enhances stability and tracking at speed. Narrower inner rim width supports narrower tire profile in rear, improves rolling resistance, and sharpens tire edge for grip.

Larger front wheel:

  • Faster rolling at speed
  • Improved grip through maximizing contact patch 
  • Reduced trail chatter

Smaller rear wheel:

  • Lower rotational weight leads to faster acceleration
  • Improved handling through tight sections of trail
  • Easier to change direction
  • Allows rider space to move further back on the bike


engagement (I9) 0.52º Quick Engagement/ Six Pawls
ETRTO (27.5) 584mm
ETRTO (29) 622mm
hub (I9) Synthesis 11 (Industry Nine Hydra Hub)
Hub Type 6 Bolt
inner rim width front 31.5mm
inner rim width rear 29.5mm
outer rim width front 38mm
outer rim width rear 37mm
rim height 18mm
spoke count front 28
spoke count rear 32
spokes front Sapim CX-Ray
spokes rear Sapim CX-Sprint
warranty lifetime (rim only)
weight for set 1811g

The Story behind Synthesis

This is the story behind Synthesis: mountain bike's first Tuned Carbon Wheel System.

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