| Model Number | WH-7850-SL | |
| Series | DURA-ACE | |
| Wheel | front | rear |
| Brake Type | rim brake | rim brake |
| Freehub Body Material | - | titanium |
| Cassette Compatibility | - | 8/9/10-speed |
| Over Locknut | 100mm | 130mm |
| Axle Type | Quick Release | Quick Release |
| QR Skewer Length | 133mm | 163mm |
| Axle Length | 108mm | 141mm |
| Axle Material | aluminum | aluminum |
| Contact Seal | yes | yes |
| Hub Shell Material | aluminum | aluminum |
| Hub Shell Finish | anodized | anodized |
| QR Lever Material | aluminum | aluminum |
| QR Lever Finish | anodized | anodized |
| Rim Type | Clincher/UST | Clincher/UST |
| Rim Size | 622x15C (700C) tubeless | 622x15C (700C) offest tubeless |
| Rim Material | scandium alloy | scandium alloy |
| Rim Finish | anodized | anodized |
| Rim Height | 24mm | 23mm |
| Rim Tape Recommended | ||
| Rim Width | 20.8mm | |
| Spokes | 16 | 20 |
| Spoke Gauge/Shape | butted(2.0/1.5/2.0)bladed | RH:butted(2.0/1.8/2.0)bladed LH:butted(2.0/1.5/2.0)bladed |
| Spoke Material | stainless steel | stainless steel |
| Spoke Color | Black | Black |
| Nipple Material | aluminum | aluminum |
| Nipple Color | Red | Red |
| Spoke Protector (Option) | - | CP-WH20-A |
| Spoke Configuration | ||
| Reflector (Option) | CAT EYE: RR-550-WUW/W SMN 03 (CPSC/JIS/BS), RR-550-WUA/A SMN 03 (AS), RR-317-WUA/4K SMN 03 (DIN) | |
| Average Weight | 649g | 865g |
| Note | Weight does not include quick release or valve stem |