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PrestaCycle UniBlock PRO Gravel 11spd Cassette
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UniBlock PRO Gravel 11spd Cassette

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Lighter, Simpler, And Ready for Gravel

Prestacycle UniBlock 11 Speed Gravel Cassettes are two-piece units with the small gears exquisitely machined from a solid block of cold-forged Chrome Molybdenum alloy steel, then heat-treated, tumble-finished and electroplated for added durability and low-friction operation. The Largest two cogs use a 7075-T6 Aluminum single block. Aluminum used for cogs as big as Aluminum Chainrings offers the same long life. They last longer than standard steel cassettes.

Single block design allows Prestacycle to remove more unnecessary material, making our cassettes lighter than even top manufacturer models that use fast-wearing aluminum big cogs. Without spacers, there is nothing to lose. Faster cleaning on and off the bike, with quicker, mistake-free installation ensures you are ready-to-go!

The gravel cassettes feature 11-40t and 11-42t ranges, are compatible with Shimano HG 11 and HG 10 freehubs (HG 10 with an optional lockring, not included), and can shave off up to a half pound of weight compared to similar products.


  • Shimano / SRAM 11 Speed
  • Maximum Life
  • Ultra-Light
  • Easier to Clean
  • Same Great Shifting
  • Chromoly steel small cogs
  • 7075-T6 Alloy 2 largest cogs
  • Red alloy locknut included
  • Available in 11-40t (11-13-15-17-19-21-24-28-32-36-40 Weight: 260 g), and 11-42t (11-13-15-17-19-21-24-28-32-36-42 Weight: 265 g) gearing options

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.


Cassette Type: Shimano 11 


Drivetrain Speed: 11-Speed 


Cassette Use: Gravel 

11-42T - Silver

Weight: 330 grams

Mfg PartNum: 93179 

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