Nukeproof Horizon V2 End CapsThese end caps are specifically designed for use with Nukeproof Horizon V2 wheelsets. Designed for ease of use, these can be used to convert your hub to a different spacing or to simply replace a lost cap. Perfect for riders who want to transform their hub set-up or breathe new life back into their existing one. Please note: All caps sold as pairs and only compatible with Nukeproof Horizon V2 hubs. Caps Nukeproof Part Number Replacement or Conversion Front 9mm QR NUKHORV2F9QRCAPS 15mm Non Boost Hub to QR Front 15mm NUKHORV2F15CAPS Replacement 15mm caps Front 20mm NUKHORV2F20CAPS Replacement 20mm caps Rear 135mm QR NUKHORV2R135CAPS Convert Non Boost 142mm hub to QR Rear 141mm NUKHORV2R141BCAPS Convert Boost 148mm HG / XD hub to 141mm QR Rear 142/148/157mm NUKHORV2R148CAPS Replacement caps for 142mm, 148mm and 157mm Rear 150mm NUKHORV2R150CAPS Replacement 150mm caps End Caps:Changing end caps is simple and no tools are required. Just pull off the end caps on the hub and then push the new ones on. Where the end caps are not identical, the non-driveside always has the wider flange to cover the bearing. Features: Use: MTB Compatibility: Nukeproof Horizon V2 hubs Single or Pair: PairBuy Nukeproof Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.