Developed using the proven technology of our well established mountain bike products our Fat bike wheels deliver excellent performance.Now with black powder coated 80mm wide single wall alloy rims and built with our silky smooth 6D Series Fat hubs, the Tundras are an excellent choice for any Fat bike.6D hubs feature a positive 30 point, reversed 6-pawl drive system and come supplied with a Shimano compatible 11spd alloy freehub. Please note: A 10spd spacer is included. Sram XD or Shimano Cr-Mo options are also available.Wheel specifications:32H 80mm single wall alloy rim with weight-saving cutouts.,Halo sealed bearing 6D Fat bike hubs.,Black stainless steel double butted spokes.,Red alloy nipples..Front hub specifications:135mm - supplied with 15mm thru-axle end caps and a 10mm bolt-in axle set.,Wheel weight 1325g..150mm - 150 x 15mm thru-axle only as standard.,Wheel weight 1355g..Rear hub specifications:170mm - supplied with 177 x 12mm thru-axle end caps and 170 x 10mm bolt-in axle set as standard. Fits regular QR or horizontal SS dropouts.,Wheel weight 1525g..190mm - supplied with 190 x 12mm or 197 x 12mm thru-axle end caps as standard.,Wheel weight 1530g..