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Profile Design 78 Twenty Four Carbon Clincher Wheelset

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Price:
$2,699.10
Shipping weight
12.00 LBS
Shipping:
Calculated at checkout
Current Stock:
3
Quantity:


Product Description

78/TwentyFour Full Carbon Clinchers

 

Please note: This wheelset is not elgible for free shipping.  $40 ground.

Brake Performance

Resin

Better Modulation, Shorter Braking Distances and Increased Heat Tolerance

Rather than using the consistently failing attempts at reducing the temperature produced by braking, we rejected what has become accepted practice and instead increased the heat capacity of our materials. Our proprietary high Tg point resin is 30% higher than other “high” Tg resins. A rim that can withstand more heat leads to improved braking performance by allowing consistent heat built up rather than attempting to reduce heat which often decreases braking power.

Specially Formulated Brake Compund

Reduces braking distance by 28% compared to our Altair models

Specifically formulated to withstand the same heat our rims could take on, our brake pad compound is specifically formulated for TwentyFour Series wheelsets. Using a specially formulated rubber compound, durometer and friction agent, we developed a proprietary brake pad resulting in more consistent braking power and reduced braking distances over that of other carbon fiber wheelsets.

 

Precision-Engineered Materials Every Step of the Way

Resin

Better Modulation, Shorter Braking Distances and Increased Heat Tolerance

Rather than using the consistently failing attempts at reducing the temperature produced by braking, we rejected what has become accepted practice and instead increased the heat capacity of our materials. Our proprietary high Tg point resin is 30% higher than other “high” Tg resins. A rim that can withstand more heat leads to improved braking performance by allowing consistent heat built up rather than attempting to reduce heat which often decreases braking power.

Pre-Preg

Maintaining Material Integrity from the Outset

Immediately after fusing the resin and carbon, the pre-preg carbon is frozen to maintain integrity. Each roll is sealed, documented, and placed into a temperature and humidity controlled refrigerator with data tracking that ensures accurate a “first-in/first-out” lean manufacturing processes.

 

Rewriting Manufacturing Procedures

Auto-Wrapping

Increased Compaction and Precise Construction

We didn’t just take the traditional route and adopt manufacturing procedures available to just anyone; we developed our own. The result? An auto-wrapping procedure no one else in the industry uses, resulting in fewer voids and fewer inconsistencies in the most important areas - the bead, tire bed and brake track. 

Lay-Up Process

Stiffer, Stronger and More Impact Resistant

How do you improve wheel balance? How can you lessen overall weight? These are the critical points we looked to address when combing through all details of our manufacturing procedures. We developed a lay-up process laying the UD carbon 45° from perpendicular to the brake track, resulting in a composite structure that is stiffer and more impact resistant.

 

78/TwentyFour Aerodynamics

The 78/TwentyFour Wheels were designed using Computational Fluid Dynamics (CFD) to produce a fast wheel at low angles of attack commonly seen in time trials and high speed bike splits. 

FASTER Wind Tunnel

Hundreds of hours in the tunnel, 12 rim profile candidates, 500 platform rotations and 21 data points per reading, we tested using a protocol to pit our wheels against the most challenging environments. We took the top performing profiles, resulting in a 78/TwentyFour wheelset that proved fast at the wind angles most commonly seen in high-speed time trials and triathlons.

Course Modeling

Wind tunnel tests can tell us how fast wheels are at different angles of attack – but how common are these angles in the courses most important to our athletes? Blindly applying tunnel data to the unpredictable force of Mother Nature didn’t quite add up to us. We took our tunnel data one step further and broke down historical World Championship data on the Queen K into 1500 segments, mapping wind speeds, angles and race day conditions measuring the performance of our selected rim profiles every 394 feet.

 

Full Specs 78/TwentyFour Clincher

Front

 Weight  826g
 Weight Limit  220lbs
 Max Tire Pressure   125psi, 8.27 bar
 Rim
 Depth  78mm 
 Width (Outside)  24.5mm 
 Width (Inside)  17mm 
 ERD  492.5mm 
 Color   UD Carbon
 Spoke
 Material  Stainless Steel 
 Shape  Straight Pull, Bladed 
 Count  20
 Pattern   Radial 
 Length  254mm 
 Color   Black
 Nipple  7075 Alloy Polyax Double Square 
 Nipple Color  Black 
 Hub
 Material  6061-T6 Alloy
 Color  Black 

Rear

 

 Weight  996g
 Weight Limit  220lbs
 Max Tire Pressure   125psi, 8.27 bar
 Rim
 Depth  78mm 
 Width (Outside)  24.5mm 
 Width (Inside)  17mm 
 ERD  492.5mm 
 Color   UD Carbon
 Spoke
 Material  Stainless Steel 
 Shape  Straight Pull, Bladed 
 Count  24
 Pattern   Radial / 2 Cross
 Length  252mm / 258mm
 Color   Black
 Nipple  7075 Alloy Polyax Double Square 
 Nipple Color  Black
 Hub
 Material  6061-T6 Alloy
 Color  Black 
 Compatibility

 Shimano/SRAM: 9/10 sp, 11sp w/ included spacer

 Campagnolo: 10/11sp Freehub Available aftermarket

 

Weight: 1830g (w/o QR)


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