Industry Nine Hydra 2 Enduro S Wheel Front 29'' / 622 Holes: 32 15mm TA 110mm Boost Disc IS 6-boltI9 Enduro S rim laced with steel spokes to the Hydra 2 hub 041 degrees of engagement (878 points of contact) Approved for SL E bikes (up to 65Nm) TECH SPECS Axle Type 15mm TA Hub Model I9 Hydra 2 Hub Spacing 110mm Boost Position Front Rim Color Black Rim Construction Double wall Rim Drilling F: 21 R: 24 Rim External Width 34. 1mm Rim Internal Width 30. 5mm Rim Material Aluminum Rim Model Enduro S Skewers Included No Spoke Type Stainless Valve Presta