Hot Racing's aluminum 12mm to 17mm hex wheel hub adapters. These adapters are compatible with many 1/10th scale vehicles with factory 12mm hex hubs and allow the use of 17mm hex wheels, all while adding a 6mm width extension per side of the vehicle for a wider, more stable, stance. FEATURES: - CNC machined solid billet aluminum construction - 12mm hex to 17mm hex conversion - 6mm offset extension per side - 17mm wheel nuts - Adapters are anodized silver in color, wheel nuts are anodized black - Wheel nuts feature an internal O-ring to maintain the nut position, even under the most severe conditions YOU WILL RECEIVE: - Four (4) wheel adapters - Four (4) wheel nuts - Four (4) M4 axle hub nuts REQUIREMENTS: - Recommended to use a removable-type locking adhesive on axle nuts - These adapters fix a wide array of vehicles. Make sure the vehicle uses a hex at least 5mm thick, or the adapter may bind against the hub. SPECIFICATIONS: - Total length: 20mm - Max axle diameter: 5mm - Axle thread: M4 - Hex depth: 5mm COMMENTS: - See Hot Racing RSSLF117X for replacement/spare M4 axle hub nuts - O-rings are 11x1mm