Introducing the all new No Tubes Arch Rim CNC machined in Barnoldswick, Engl&. Handbuilt in-house. Bearing type: Stainless Cartridge (S6903, S6803, S6804 & S17287). Hub Body: 2014 T6 aluminium Hole Drilling: 32h Spokes: Sapim Race. 2mm brass nipples. Supplied with Q/r & 15mm Conversions. Following on from the success of the Pro 2 hub, this now proven award winning wheelset continues to receive accolades & awards. The Pro 2 Evo now offers the added benefit of running on stainless steel bearings.