Check the listing for details. Headset OR8 Integrated TWISTR 1-1/8 BK 45 x 45. Color: Black, Condition: New. Listed at 32.18 USD. Headset OR8 Integrated TWISTR 45/45 Highly polished sealed angular contact premium bearings ensure smooth operationCNC machined AL6061 top cover is sealed to keep moisture and grit away from the bearingsCNC machined AL7075 crown race protects the lower bearings and forkAL6061 top cap, forged stainless steel bolt, and star nutCup 42/42SHIS: IS42/28.6|IS42/30 Color: Black Weight: 75g Steerer OD: 28.6mm Cup: 42mm/42mm Race: 30mm Stack Height: 10 Bearing Angle: 45°/45° Size: 1-1/8"UPC / EAN 888571045091 Cup 41/41SHIS: IS41/28.6|IS41/30 Color: Black Weight: 70g Steerer OD: 28.6 Cup: 41/41 Race: 30 Stack Height: 10 Bearing Angle: 45°/45° Size: 1-1/8" Brand Name ORIGIN8 UPC / EAN 888571045084 The three different types of BMX headset are integrated, internal and external. • Integrated headsets are used with frames where the head tube is machined so that the top and bottom bearings can fit directly into the frame, eliminating the need for extra bearing cups and enabling the bearings to sit flush with the frame for an attractive, clean look. Because they have less parts, they are a little lighter than other headset options. These headsets are common on mid-budget to top-end bikes and on most new aftermarket frames.• Internal headsets are for bikes without machined head tubes and require aluminum cups to be pressed into the top and bottom of the tube so that the bearings can sit into them. They are similar to integrated headsets – and sometimes referred to as 'semi-integrated' – but the difference is that the bearing races are separate components, rather than being integral parts of the head tube.• External headsets are also known as 'standard' headsets. This is the traditional type of threadless Aheadset which has upper and lower bearing races pressed into the frame, with the bearings positioned outside the head tube (as opposed to inside, in the case of integrated and internal headsets). These are typically found on low- to mid-budget bikes and often use 'loose', unsealed ball bearings that sit in the upper head tube race, rather than sealed cartridge bearings. When purchasing a new BMX headset you will want to consider the type of frame you have – if your head tube isn't machined for an integrated headset, you'll need either the internal or standard type. Shipping to other countries will cost more for shipping & handling. We will communicate how much more.International Buyers - Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior tobidding or buying Wonder Lake Bicycle