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Profile Design 38/TwentyFour Carbon Clincher Wheelset

$1,149.99

Item # PRD002A

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Item # PRD002A

An all-around speedy workhorse.

If you walked into any high-end bike shop in the '90s, you'd see the Profile Design logo prominently displayed as the go-to brand for aero bars and wind-cutting triathlon accessories. Since then, Profile has expanded its offerings with additional componentry, including wheels. With the 38/TwentyFour Carbon Clincher Wheelset, Profile combines its expertise in aerodynamics with a reputation for durability to bring you a solid all-rounder that can climb, corner, and get down the road fast.

Profile engineers camped out in the wind tunnel with Computation Fluid Dynamics specialists to analyze testing data and determine the best rim shape for low drag and solid crosswind handling. To replicate real-world situations, they even mapped out weather data from recent high-level cycling and triathlon events to recreate those wind conditions in the tunnel. The result of all this work is a wheel that isn't just fast in the virtual lab world — it's fast out on the pavement in real-world wind conditions.

The specs are in the name with these wheels. The 38/TwentyFours feature a 38mm rim that gives you just enough aerodynamics to slice through the wind while maintaining a relatively low profile in crosswinds. They also feature slightly curved sides with a rounded spoke-facing edge that manages the lateral force of crosswinds for better stability than traditional airfoil rims.

Profile uses its own high Tg point resin on the carbon braking surface for a claimed 30% increase in heat capacity compared to other high Tg resins used in the industry. This means, in theory, that these wheels have better, more consistent braking across changing weather conditions and long descents than the competition. So put away the hourly temperature reports and radar forecasts and get out for a ride with confidence that you'll be able to stop when you need to in any weather without risking a catastrophic rim failure.

The other side of the name references Profile's TwentyFour Series hubs. They're made of forged and machined 6061-T6 aluminum for a durable, strong, and stiff hub body. The freehub is machined from 7001-T6 aluminum and then shot-peened hard anodized, increasing its strength by a claimed 18% over standard aluminum freehubs. This helps prevent the cassette from digging into the hub body or moving unnecessarily, which means crisper shifting and more efficient power transfer for a quiet, fast ride. You'll stay in the zone and fly to the finish line without any distracting drivetrain noise or shifting issues.

The Profile Design 38/TwentyFour Carbon Clincher Wheelset is compatible with Shimano and SRAM 9, 10, and 11-speed cassettes, and can be converted to Campagnolo 10/11-speed with a separately sold Campagnolo-specific freehub.

Tech Specs

Rim Material:
carbon fiber
Wheel Size:
700 c
Tire Type:
clincher
Rim Depth:
38 mm
Rim Width:
[external] 24.5 mm, [internal] 17 mm
Brake Compatibility:
rim
Hubs:
Profile Design TwentyFour Series
Spokes:
stainless steel
Spoke Nipple:
7075 Alloy Polyax Double Square
Spoke Count:
[front] 20, [rear] 24
Max Rider Weight:
220 lb
Claimed Weight:
[front] 657 g, [rear] 808 g
Recommended Use:
road cycling
Manufacturer Warranty:
2 years limited

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