Centerlock To 6 Bolt Adapter, Bicycle Center Lock Adapter Disc Brake, Center Product Details Centerlock to 6-hole Hub Disc Center Lock Conversion Bicycle Brake Adapter for 6 Bolt Rotors Description: If the bicycle is a center-lock hub, it must be equipped with a center-lock disc. However, there are too few types of center-lock discs available on the market. If this is available, you can install six-pin discs. The choice is even broader. Lightweight?Using this accessory, your Center Lock Disc Bike Wheels can be fitted with 44mm 6 bolt disc rotor.The bike center lock made of aluminum alloy, easy to use, light weight, simple and durability. Purpose: Suitable For The wheelset hub disc lock suitable for mountain bike, road bikes,Install on the center lock hub so that it can install six-nail discs Durable Safe:Made of aluminum alloy and full CNC process,high wear resistance and not easy to break.with exquisite appearance,Excellent Hardness Would Withstand The Abrasion Of Braking And Give You A Long Service Life. Installation requirements: The center distance between the six-nail disc and the hole is 44mm,Simple design make it easy to assemble and disassemble Very suitable for compatibility with mountain bikes, much easy to install and disassemble. Guarantee:Please see pictures to confirm size and compatibility before order. If you have any problem, please feel free to contact us. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.