- Overview
- Front Hub Compatibility Table
- Rear Hub Compatibility Table
- Front Axle Types
- Rear Alxe Types
- Disc Brake Rotor Types
- Disc Brake Flange Types
- Specialized SCS frame spacing
Overview
MTB is no longer the sole dominion for disc brake hubs. Today, we are witnessing a road and cyclocross disc brake revolution and for good reason. Disc brakes provides superior performance over rim brakes especially in foul weather. With revolution comes innovation, and sometimes confusion. New and different frame spacing standards across manufactures have challenged riders who are looking to customize their wheels. To address this changing landscape, we have put together this road disc brake hub guide to present the "need-to-know" information to help you make an educated decision about your next custom road disc brake wheelset. We hope you find this information valuable, and of course, if you have questions, or would like to have one of our experts guide you, please feel free to contact us.
Front Hub Compatibility Table
| Front Hub Model | g* | Colors | Axle Options | Hole Count | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| QR | 9mm | 12mm | 15mm | 20 | 24 | 28 | 32 | |||
| Chris King R45 ISO Disc | 162 | Variety |
• | • | • |
• | • | |||
| Chris King ISO SD | 166 | Variety |
• | • | • | • | • | |||
| DT Swiss 350 ISO | 183 | Black | • | • | • | • | ||||
| DT Swiss 350 Straight Pull ISO | 144 | Black | • | • | • | |||||
| DT Swiss 350 Center Lock | 136 | Black | • | • | • | • | • | • | ||
| DT Swiss 350 Straight Pull Center Lock | 139 | Black | • | • | • |
• | ||||
| DT Swiss 240s ISO | 165 | Black | • | º | • | • | ||||
| DT Swiss 240s Straight Pull ISO | 129 | Black | • | º | º | • | • | |||
| DT Swiss 240s Center Lock | 128 | Black | • | º | º | • | • | • | • | • |
| DT Swiss 240s Straight Pull Center Lock | 122 | Black | • | º | º | • | • | |||
| DT Swiss 180 Center Lock | 107 | Black | • | º | º | • | • | • |
• | • |
| Hope SP24 Straight Pull ISO | 151 | Variety |
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| Hope Pro 4 ISO | 180 | Variety |
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| Industry Nine Torch ISO Road Disc | 123 | Variety |
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| Industry Nine Torch MTB Center Lock | 130 | Variety |
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| Industry Nine Torch MTB Disc | 152 | Variety |
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| PowerTap G3 Front Center Lock Disc | 97 | Black |
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| Project 321 CX1 | 169 | Variety |
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| White Industries CLD | 145 | Variety |
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| White Industries XMR | 175 | Variety |
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| *Weights vary slightly depending on endcap spec • = Standard º = Option with appropriate endcap conversion |
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Rear Hub Compatibility Table
| Rear Hub Model | g* | Colors | Axle Options | Hole Count | Drive Compatibility | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 135xQR | 135x10 | 135x12 | 142x12 | 24 | 28 | 32 | Shimano/SRAM 9/10 | Shimano/SRAM 11 | Campy | XD | |||
| Chris King R45 ISO Disc | 276 |
Variety |
• | • | • |
• | • |
• |
• (1) | ||||
| Chris King ISO | 336 |
Variety |
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• |
• | • |
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| DT Swiss 350 ISO | 303 |
Black | • | º | º | • | • | • | • | º | º | • | |
| DT Swiss 350 Straight Pull ISO | 276 |
Black | • | º | º | • | • | • | • | ||||
| DT Swiss 350 Center Lock | 270 |
Black | • | º | º | • | • | • | • |
• |
• |
º | • |
| DT Swiss 350 Road Disc Brake Straight Pull Center Lock | 267 |
Black | • | º | º | • | • |
• | • |
º | º | ||
| DT Swiss 350 Straight Pull Center Lock | 267 |
Black | • | º | º | • | • | • |
• |
• | |||
| DT Swiss 240 ISO | 242 |
Black | • | º | º | • | • | • |
• |
º | º | • |
|
| DT Swiss 240 Straight Pull ISO | 235 |
Black | • | º | º | • | • | • |
• | ||||
| DT Swiss 240 Road Disc Brake Center Lock | 228 |
Black | • | º | º | • | • |
• | • |
º | º | ||
| DT Swiss 240 Center Lock | 233 |
Black | • | º | º | • | • |
• | • |
• |
• |
• | |
| DT Swiss 240 Road Disc Brake Straight Pull Center Lock | 228 |
Black | • | º | º | • | • |
• | • |
º | º | ||
| DT Swiss 240 Straight Pull Center Lock | 228 |
Black | • | º | º | • | • | • |
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• |
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| DT Swiss 180 Center Lock | 205 |
Black | • | º | º | • | • |
• | • |
• |
º | º | • |
| Hope SP24 SCS Straight Pull ISO | 283 |
Black | • (2) |
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• |
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| Hope Pro 4 ISO | 300 |
Black | • | • |
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| Industry Nine Torch Road Disc | 257 |
Variety |
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• |
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| Industry Nine Torch Center Lock | 265 |
Variety |
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| Industry Nine Torch MTB ISO | 275 |
Variety |
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| PowerTap G3 Straight Pull ISO Disc | 350 |
Black |
• | • |
• |
• | • |
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| Project 321 CX1 | 274 |
Variety |
• | • |
• | • |
• |
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| White Industries CLD | 265 |
Variety |
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• | • |
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• |
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| White Industries XMR | 298 |
Variety |
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• | • |
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• |
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| (1) = Campagnolo not available in 142x12 (2) = Compatible with Specialized SCS System only • = Standard º = Option with appropriate endcap or driver conversion |
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Specialized SCS
Specialized road disc brake bikes with the "SCS" Short Chainstay System design, such as the Diverge, Crux, Roubaix, and Ruby feature a unique rear frame spacing that is not compatible with standard 135x12 or 142x12 through axle configurations. This "innovation" poses a challenge to riders looking to customize their wheels. If you want to build custom wheels for your SCS bike, your options are as follows:
- Build a custom wheel with the Hope SP24 SCS Straight Pull ISO rear hub. The hope hub is specifically designed to work with SCS bikes.
- Use a non-SCS derailleur hanger, available from your local Specialized dealer.
