29 Boost Rear XD

Synthesis DH Alloy i9 1/1 Rear Wheel

Synthesis Alloy wheels combine a compliant front wheel for control and grip through rocks and roots, while a stiff rear wheel stands up to impacts and cornering loads. Offered in partnership with YT, Synthesis Alloy is now available in a DH-optimized model with reinforced spokes and rim profile, combined with modern DH Boost spacing.

  • Wheels sold individually not in sets.
  • 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.
  • Stiff tuned rear wheel supports peak loads and enhances stability and tracking at speed.
  • Welded and sleeved rim joint for additional strength.


Regular price €549,99
Tax included.
Freehub Body

Compatibility Tubeless ready / compatible


ETRTO 584mm (27.5), 622mm (29)

Hub i9 1/1

Hub Type 6 Bolt

Rim Material 6013 T6 Alloy

Inner Rim Width 31.5mm

Outer Rim Width 36.5mm

Rim Height 21mm

Spoke Count 32

Spokes Sapim Race

Weight 1113g (27.5), 1154g (29)

Warranty 2 years (rim only)

View our 30-Day Return Policy here

The Story behind Synthesis

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

Product Support

Support Documents