crankbrothers Synthesis Enduro 11 - I9 Hydra 29/27.5 Boost SRAM XD

crankbrothers Synthesis Enduro 11 - I9 Hydra 29/27.5 Boost SRAM XD




29"/27.5" (F/R)-DISC BRAKE (6-BOLT)

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Please allow 7-10 Days For Dispatch
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The Synthesis Enduro 11 - I9 Hydra 29/27.5 Boost SRAM XD is a mountain bike's first tuned carbon wheel system designed specifically for enduro riding and racing. It features front and rear specific wheels that are tuned and optimized to address the specific performance requirements and loads of mountain bike riding.

The compliant tuned front wheel improves handling and maximizes grip and control in turns. It boasts a wider inner rim width that supports a wider tire profile in the front, increasing volume and contact patch, and creating a rounded tire profile to enhance turning.

The stiff tuned rear wheel supports peak loads and enhances stability and tracking at speed. It has a narrower inner rim width, which supports a narrower tire profile in the rear, improving rolling resistance and sharpening tire edge for better grip.


  • Engagement: 0.52° quiet engagement / six pawls
  • ETRTO: 585mm (27.5), 622mm (29)
  • Hub: Industry Nine Hydra
  • Inner Rim Width: Front 31.5mm, Rear 29.5mm
  • Outer Rim Width: Front 37.5mm, Rear 36.5mm
  • Rim Height: 18mm
  • Spoke Count: Front 28, Rear 32
  • Spoke Type: Sapim CX-Ray (front), CX-Sprint (Rear)
  • Warranty: Lifetime (rim only)
  • Weight: 1760g per set (27.5), 1825g per set (29)

Colours Black/Grey
Sizes 29"/27.5" (F/R)-DISC BRAKE (6-BOLT)
Brand crankbrothers
Model Year 2023
Barcodes 641300164940
SKUs / Part Numbers CRB-16494

Please note: Manufacturers can sometimes change the specification of the products from time to time.