Crankbrothers Synthesis E Alloy Wheelset

Crankbrothers Synthesis E Alloy Wheelset
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New Alloy Crankbrothers Synthesis Wheels - First Look and Ride Impressions

Crankbrothers brings their compliant front and stiff rear wheel concept to a more affordable price point.

Last year Crankbrothers introduced the Synthesis line of carbon wheels, and in doing so they really brought to light how some added compliance in a front wheel can be a very beneficial thing. Pair that with a stiffer rear wheel and you get a bike that simply rides better through most mountain bike terrain – something Crankbrothers has proven with lots of blind testing. Today they are excited to unveil the aluminum counterpart, and we're joined by MTB Savant in the video above for a first look and first ride.

Compliant Front

Stiff Rear

  • Wider, lighter aluminum rim
  • Fewer, lighter spokes
  • Lower spoke tension
  • Narrower, tougher aluminum rim
  • More, stouter spokes
  • Higher spoke tension

"The compliant front wheel improves handling and control in turns, while the stiff rear wheel enhances stability and tracking at speed." - Crankbrothers

Synthesis Alloy Wheel Range

  • Available in Enduro, Cross Country/Trail, and E-MTB models
  • Aluminum rims
  • 28 and 32 Sapim spokes front and rear
  • Two hub options: Crankbrothers hub or Industry Nine 1/1 hub, providing 4 degrees of engagement
  • Rim-only Cross Country/Trail and Enduro options ($129)
  • XD, MicroSpline, and standard freehub options
  • Offered in Boost hub sizes
  • Available as a set or individually
  • MSRP as tested: $299 front, $499 rear (E Alloy with I9 hubs)

Visit for more details.

About The Tester

James Yun - Age: 44 // Years Riding: 17 // Height: 5'10" (177.7cm) // Weight: 170-pounds (77.1kg)

James is a mountain bike enthusiast and geek based in Northern California. He's also the founder of the MTB Savant YouTube channel.


Product Crankbrothers Synthesis E Alloy Wheelset
Riding Type Enduro / All-Mountain
Wheel Size 27.5" (650b), 29"
Rim Material Aluminum
Rim Crankbrothers Synthesis front and rear-specific rims
Inner Rim Width
  • 31.5mm
  • 29.5mm
Hole Count Front: 28
Rear: 32
Tubeless Compatible Yes
Rear Hub
  • Industry Nine 1/1 with 4° engagement, XD and HG options available
  • Crankbrothers Synthesis standard with 17° engagement, XD and HG options available
  • Rear Axle 12mm x 148mm (Boost)
    Front Hub
  • Industry Nine 1/1
  • Crankbrothers Synthesis standard
  • Front Axle 15mm x 110mm (Boost)
    Disc Mount Type 6 Bolt
    Spokes Front: Sapim D-Light
    Rear: Sapim Race
    Colors Black
    • 1 lb 13.5 oz (837 g)
    • 1 lb 14.9 oz (877 g)
    • 1 lb 14.5 oz (865 g)
    • 1 lb 15.8 oz (902 g)
    • 2 lb 3.9 oz (1,018 g)
    • 2 lb 5.5 oz (1,062 g)
    • 2 lb 5 oz (1,048 g)
    • 2 lb 6.6 oz (1,095 g)
    Miscellaneous Compliant Front Wheel – The compliant tuned front wheel improves handling and maximizes grip and control in turns. A wider inner rim width supports a wider tire profile, increased volume and contact patch, and rounds the tire profile to enhance turning.

    Stiff Rear Wheel – The stiff tuned rear wheel supports peak loads and enhances stability and tracking at speed. A narrower inner rim width supports a narrower tire profile, improves rolling resistance, and sharpens tire edge for grip.

    Wheelset Warranty – 2 years for the original owner
    • $799
    • $599
    • $299
    • $239
    • $499
    • $359
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