- Ultra thin wall extrusion reinforced at spoke hole
- 20 spoke front, 24 spoke rear spokes
- Straight and 2-across spoke lace for increased torsional rigidity and spoke life
| Model Number | WH-M770 | |
| Series | DEORE XT | |
| Wheel | front | rear |
| Brake Type | rim brake only | rim brake only |
| Freehub Body Type | - | 8/9-speed compatible |
| Freehub Body Material | - | steel |
| Axle Type | Quick Release | Quick Release |
| Over Locknut | 100mm | 135mm |
| Axle Length | 108mm | 146mm |
| Axle Material | rim brake only | rim brake only |
| Contact Sealing | yes | yes |
| Hub Shell Material | aluminum | aluminum |
| Hub Shell Finish | anodized | anodized |
| QR Skewer Length | 133mm | 168mm |
| QR Lever Material | aluminum | aluminum |
| QR Lever Finish | anodized | anodized |
| CENTER LOCK Rotor Mount | no | no |
| Rim Type | UST | UST |
| Rim Size | 559 x 19C (26") | 559 x 19C (26") |
| Rim Material | aluminum | aluminum |
| Rim Finish | anodized | anodized |
| Rim Height | 21mm | 21mm |
| Rim Width | 23.1mm | 23.1mm |
| Spoke Gauge/Shape | butted (2.0/1.5/2.0) / round | butted (2.0/1.5/2.0) / round |
| Spoke Material | stainless steel | stainless steel |
| Spoke Color | Black | Black |
| Nipple Material | aluminum | aluminum |
| Nipple Color | Red | Red |
| Spoke Protector (Option) | - | CP-WH14/15 |
| 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) | CAT EYE: RR-550-WUW SW W/O BRACKET (JIP/CPSC), RR-550-WUA SW W/O BRACKET (AS), RR-317-WUA SW W/O BRACKET (DIN) |
| Average Weight | 722g | 948g |
| Recommended Tire | 26 x 1.50-2.25 | 26 x 1.50-2.25 |
| Note | Weight does not include quick release or valve stem |