Welcome to our store！</br> 1、Aluminum Material: Made of high quality aluminum alloy, high strength, rust resistant and durable, no deformation. 2、CNC Machining: CNC machining treatment can make the surface smooth and prevents wear and tear. 3、Size Description: The BCD distance of the centerlock adapter base id approx.44mm/1.7in, full length is 52mm/2.0in; Locking cap ID is about 26mm/1.0in, diameter is about 44mm/1.7in. 4、Mountain Bike Available: Can be used for thru axle hub, compatible with mountain bike, very easy to install and remove. 5、Using Purpose: mount on the middle lock hub, (9/12/15/20mm) axis can be installed, so that it can install 6 bolt disc. <p class="wang-edit-text"><p class="wang-edit-text"> <p class="wang-edit-text"> Item Type: Centerlock Adapter Material: Aluminum Alloy Application: For Thru Axle Hub Product Size: Centerlock Adapter Base: BCD: Approx.44mm/1.7in, Full Length: Approx.52mm/2.0in Locking Cap: Inside Diameter: Approx.26mm/1.0in, Diameter: Approx.44mm/1.7in Weight: Approx.30g/1.1oz <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Centerlock Adapter Base 1 x Locking Cap Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>