<strong>Specification:</strong><br> Material: AL6061 aluminum alloy body  AL7075 shaft core tower<br> Number of holes: 32 holes<br> Taki: Support shimano 8-9-10 speed<br> Quick release version: front width 100mmx9mm, rear width 135mmx10mm<br> Barrel axis version: front width 100mmX15mm, rear width 142mmX12mm<br> Number of rings: 72 rings<br> Color Optional: Red / Gold / Blue / Titanium / Black<br> Weight: 220 grams of front axle, 300 grams of rear axle, 120 grams before and after quick release<br> <br> <strong>Package Included:</strong><br> 1 Pair * Mountain Bike Hub