The Crankbrothers Synthesis DH Alloy 2.0 wheels are purpose-built for downhill racing and riding, offering a tuned system for ultimate performance on the most demanding trails. The compliant front wheel enhances grip and control through rocks, roots, and technical features, while the stiff rear wheel provides the stability and durability needed to handle high-speed impacts and aggressive cornering.

Reinforced rims, spokes, and a DH-specific profile ensure maximum strength and reliability, while modern DH Boost spacing availability guarantees compatibility with today’s downhill bikes. Proven on the toughest courses, this wheelset is designed to inspire confidence and deliver speed, lap after lap. With Synthesis DH Alloy 2.0 wheels, every descent becomes your playground.

Features: 

• Tuned Front & Rear System: Optimized alloy wheels designed for Downhill riding, with front- and rear-specific tuning to meet the unique performance demands and loads of mountain biking
  
• Compliant tuned front wheel improves handling, grip and cornering control with an inner rim width that supports a wider tire profile, increasing volume and contact patch for improved turning performance
  
• Stiff tuned rear wheel improves stability and tracking at speed by absorbing peak loads. A narrower inner rim width optimizes rolling resistance and sharpens tire edges for improved grip
  
• A reinforced rim construction with 6069 aluminum and a shot-peened finish provide superior impact resistance and fatigue strength
  
• Available equipped with Industry Nine 1/1 with 4 degrees of engagement, or Crankbrothers Ratchet hubs with 10 degrees of engagement, upgradeable to 6.6 degrees of engagement with our 54t Ratchet Upgrade Kit
  
• Rims covered by lifetime warranty

Specifications:

DH Alloy 2.0 Industry Nine Hub

ETRTO: 584mm (27.5), 622mm (29)
Hub: I9 1/1
Hub Engagement: 4°
Hub Type: 6 Bolt
Rim Material: 6069 Alloy
Inner Rim Width: Front 31mm | Rear 29.5mm 
Rim Height: 20mm
Spoke Count: Front 28 | Rear 32
Spokes: Pillar SR TB 2016
Weight Front: 925g (27.5), 960g (29)
Weight Rear: 1098g (27.5), 1152g (29)

DH Alloy 2.0 Crankbrothers Ratchet Hub

ETRTO: 584mm (27.5), 622mm (29)
Hub: CB Ratchet
Hub Engagement: 10° or 6.6° with upgrade kit
Hub Type: 6 Bolt
Rim Material: 6069 Alloy
Inner Rim Width: Front 31mm | Rear 29.5mm 
Rim Height: 20mm
Spoke Count: Front 28 | Rear 32
Spokes: Pillar SR TB 2016
Weight Front: 980g (27.5), 1014g (29)
Weight Rear: 1100g (27.5), 1154g (29)

SKUs
17101 (Industry Nine 1/1 27.5 Front 20 x 110 Boost)
17102 (Industry Nine 1/1 27.5 Rear XD 12 x 157 Boost)
17103 (Industry Nine 1/1 27.5 Rear HG 12 x 157 Boost)
17104 (Industry Nine 1/1 27.5 Rear XD 12 x 148 Boost)
17105 (Industry Nine 1/1 27.5 Rear HG 12 x 148 Boost)

17106 (Industry Nine 1/1 29 Front 20 x 110 Boost)
17107 (Industry Nine 1/1 29 Rear XD 12 x 157 Boost)
17108 (Industry Nine 1/1 29 Rear HG 12 x 157 Boost)
17109 (Industry Nine 1/1 29 Rear XD 12 x 148 Boost)
17110 (Industry Nine 1/1 29 Rear HG 12 x 148 Boost)

17111( Industry Nine 1/1 27.5 Front (Silver) 20 x 110 Boost)
17112 (Industry Nine 1/1 27.5 Rear (Silver) XD 12 x 157 Boost)
17113 (Industry Nine 1/1 27.5 Rear (Silver) HG 12 x 157 Boost)
17114 (Industry Nine 1/1 27.5 Rear (Silver) XD 12 x 148 Boost)
17115 (Industry Nine 1/1 27.5 Rear (Silver) HG 12 x 148 Boost)

17116 (Industry Nine 1/1 29 Front (Silver) 20 x 110 Boost)
17117 (Industry Nine 1/1 29 Rear (Silver) XD 12 x 157 Boost)
17118 (Industry Nine 1/1 29 Rear (Silver) HG 12 x 157 Boost)
17119 (Industry Nine 1/1 29 Rear (Silver) XD 12 x 148 Boost)
17120 (Industry Nine 1/1 29 Rear (Silver) HG 12 x 148 Boost)

17121 (CB Ratchet 27.5 Front 20 x 110 Boost)
17122 (CB Ratchet 27.5 Rear DH XD 12 x 157 Boost)
17123 (CB Ratchet 27.5 Rear HG 12 x 157 Boost)
17124 (CB Ratchet 27.5 Rear XD 12 x 148 Boost)
17125 (CB Ratchet 27.5 Rear HG 12 x 148 Boost)

17126 (CB Ratchet 29 Front 20 x 110 Boost)
17127 (CB Ratchet 29 Rear XD 12 x 157 Boost)
17128 (CB Ratchet 29 Rear HG 12 x 157 Boost)
17129 (CB Ratchet 29 Rear XD 12 x 148 Boost)
17130 (CB Ratchet 29 Rear HG 12 x 148 Boost)