Spank oozy 345 boost hybrid rear wheelthis mtb rear wheel features a tough alloy rim construction, which makes it perfect at handling all the challenges that come with blasting across the mountain bike trails at speed'. '.strtoupper('s')pank has also equipped this model with a shotpeened finish, which gives it an additional layer of robustness as you ride across unpredictable terrain conditions'. '.strtoupper('c')oming complete with tubeless ready tyre compatibility, this rear wheel allows you to benefit from its superior traction and control'. '.strtoupper('h')igh performance alloy hybrid rear wheel for e mtb, trail and all mountain use'. '.strtoupper('t')ubeless ready with anti burp rim hooks to prevent the loss of pressure and keep tires firmly in place'. '.strtoupper('t')he corrugated rim center adds exceptional strength, making it more rigid and allowing the rim to be wider without adding material'. '.strtoupper('s')hotpeen finish to increase fatigue life and make it more durable'. '.strtoupper('f')eatures material alloy use mtbfreehub steel shimano hgerd mm etrto mm 27.5 554 584x30 29 591 622x30rim dimensions inner 30mm outer 34.5mmspokes j hook, triple butted 2.2 1.8 2.0, brass dsn nipples, 32htubeless ready yesvalve f v prestatechnologies beadbite anti burp, oohbah inverted inner wall, dynamal alloybuy spank wheels tyres from chain reaction cycles, the world's largest online bike store.