<p>Use American valve</p><p>Wheelset supporting SHIMANO 7/8/9/10/11 speed (7 speed need to add gasket )</p><p>Frame height: About 21mm</p><p>Inner width: about 19mm</p><p>External width: About 25mm</p><p>Specification: 26/27.5/29inch Wheelset, 24 hole</p><p>Drum: carbon fiber carbon coating drum,front 2 rear 4 Peilin, CNC precision machining</p><p>Kentucky: lightweight Aluminum Alloy tower, 3, independent type jack,</p><p>Rim: 6061 double Aluminum Alloy rims, anodized surface</p><p>Weight: front wheel ± 880g rear wheel ± 1000g</p><p>The weight is only for reference, subject to the actual received wheelset</p><p>Purchase options:</p><p>100*135MM: size 100*9mm 135*10mm (Quick Release).</p><p>100*142MM: size 100*15mm 142*12mm (Thru axle).</p><p>We have Shimano tower base and XD tower base. If you need XD tower base, please contact customer service to make up the difference.</p><p>Default delivery: Shimano tower base, thank you.</p>