Here's a great set of wheels for your Mountain Bike. These are Genuine 650b DTS G540 DB rims with 32 spokes laced to Shimao M4050 hubs and 650b x 47b Mxs Rambler Tires. Tires and Presta Valve Tubes are already installed! Also included are Shimao splined 160mm Rotors. These are brand new, never used. Here are the detailed specs for these GRX135/100QR DSC38 Wheels

Size: 650b X 28MM od rims
Rim Material: Aluminum
Type: Double Wall
Finish (Color): Black
Braking Surface: Splined Disc Brake Only
Valve Hole: Presta
Spoke Material/Type: Stainless Steel 14g
Spoke Count: Front: 32 Rear: 32
Lacing: 3 cross
Nipple: Brass CP Finish
Compatibility: 8,9,10,11 speed cassettes
Hub Material: Forged Aluminum
Hub Finish: Black
Hubs: Precision Ball Bearing Shm M4050
Axle Material: Steel
Axle Type: Quick Release Axle
Hub Spacing: Front - 135mm, Rear - 100mm front
Tires: Mxs. Rambler 650b x 47 60 psi / 120TPI / EXO TR This listing is for a pair of wheels with tires, tubes, rotors , skewers and a centerlock lockring tool