This is for some newly hand built 27.5 inch 650b gravel bike wheelsets incorporating brand new black 32 hole DT Swiss G540 db disc rims, brand new black or silver Bitex BX106 centrelock disc specific hubs, Sapim Leader silver stainless steel spokes and nickel plated brass nipples. After extensive testing DT Swiss have settled on a full 24mm as the perfect width for modern Gravel bikes. The added width gives better support to wide, 35c or larger tyres, allowing the use of lower pressures, enhancing grip & comfort whilst reducing rolling resistance & tyre flex under cornering. Robust, sleeved construction gives a great value package for a wide gravel rim with a suggested maximum system weight of 130kg. The rims can be used with or without tubes. The Bitex BX106 hubs are good lightweight centre lock hubs that are both reliable and durable - ideal for a road/gravel disc setup with a range of freehub options. The front hubs can be set for 100mm QR, 100mm x 12mm, or 100mm x 15mm; and the rear hub can be set for 135mm QR, or 142mm x 12mm. The rear hubs are fitted with the new Campagnolo N3W 13 speed freehubs. The rims are 3-cross laced to the hubs with Sapim Leader silver stainless steel spokes and nickel plated brass nipples. These beautiful wheelsets have been hand trued, dished and spokes tensioned according to rim manufacturers recommendations. Wheels are bubble wrapped and boxed properly. Sent using insured and tracked postage. Please look at my other items. Thank you for looking.