Alto CC52 Clincher Rim Brake Wheelset


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Carbon clinchers - are they for racing or training? Yes.

The wheelset that does it all, for the athlete who doesn't want the hassle of swapping wheels out between events. Have the convenience of a clincher and the confidence in knowing that it's still the fastest set on the road.

🇺🇸 PROUDLY HANDMADE IN THE USA 🇺🇸

  • Front: 20H, 705g
  • Rear: 24H, 876g
  • Shimano, SRAM, and Campagnolo Compatible
  • Tubeless Compatible
  • Optimized for 11 speed and compatible with 10 speed
  • Carbon Fiber with EPS Core Mfg Technology
  • 23-28mm Clincher Tires Recommended
  • Alto Skewers and SwissStop Black Prince Brake Pads Included
  • Unlimited Rider Weight Limit
  • 5 Year Warranty
  • UCI Certified
  • Additional decal and hub colors available on request

CONTACT US HERE TO TRY A DEMO SET!

Rim Color
Green
Dark Grey
White
Freehub
Axle

TECHNOLOGY

HANDMADE IN THE USA

Alto engineers with purpose and creates products that are designed to improve upon and eliminate existing industry ailments -- specifically addressing lateral stiffness, ride quality, and durability. All Alto wheels have unlimited rider weight restrictions and a 5 year warranty!

R-SYMMETRIC DESIGN

A balanced wheel is a stiff wheel, and therefore a faster wheel. Alto set out to determine the answer to a specific engineering optimization question: what is the perfect hub geometry and spoke lacing pattern that will create the most balanced, most durable, and stiffest wheel possible? It took many months of programming, but the results were well worth it.

CARBON RIMS

Alto carbon rims are created using a unidirectional filament winding process that results in the stiffest and most durable laminate structure in the world. It is their laminate design, along with their new high temperature resin, that make Alto rims the most technologically advanced on the market.

BRAKE TRACK TESTING

ONE-PIECE ADJUSTABLE AXLES

Premature bearing wear is way too common, and Alto designed a one-piece axle that will put a stop to the madness. The one-piece design, along with the use of aluminum 7075, means that the axle will not bend and flex under load. So the bearings won't torque and become damaged every time you stand and put the power down. The plug and collar system removes all thrust loading from Alto's NSK and CeramicSpeed bearings, allowing them to spin free for thousands of miles. It's a simple and efficient design that results in durability and speed.

LABYRINTH SEALED HUBS AND NSK ABEC7 BEARINGS

Have you ever spun a wheel in your hands and had it feel, well, not so good? We all hate that. Alto created a system that would allow for free spinning bearings and ultra fast wheels. A labyrinth seal is machined directly into Alto's hubs, with extremely tight tolerances and material overlaps that make it impossible for water and debris to reach those precious bearings. There are no plastic dust shields to create drag, and no energy lost to unnecessary friction.

TESTING

Alto leaves nothing to chance. Their engineers are using state of the art solid modeling and finite element analysis to optimize every design. They test each part in every load condition to be sure it is as light as possible while also staying well above the required factor of safety. Optimization at its finest.

SPECS

  Rear Hub Front Hub
Weight 230g 85g
Shell Material AL 6061-T6 AL 6061-T6
Axle/End Cap Material AL 7075-T6 AL 7075-T6
Drive Side Lacing 2-Cross Radial
Non-Drive Side Lacing 2-Cross Radial
Drive Flange Diameter 109.7mm 43.3mm
Non-Drive Side Flange Diameter 48.5mm 43.3mm
Center to Drive Flange 16.0mm 38.9mm
Effective Center to Drive Flange 23.7mm 38.9mm
Center to Non-Drive Flange 39.4mm 38.9mm
Axle Diameter 15mm 15mm
Shell Bearings NSK 6902DDU NSK 6802DDU
Freehub Bearings NSK 6802DDU N/A

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