The headset is combined with upper IS42 and lower IS52 integrated (bearing stop built into frame), compatible with 41.8-52mm (upper-lower) headtube ID and 1 1/8” straight and 1 1/8"-1 1/2" tapered fork steering tube<br><br> The headset includes all the necessary components including star nut, compression ring and bolt, cups, sealed bearings and crown race, top cap etc. <br><br> Please measure your headtube size against product page's pictures and verify fork type before ordering. <br><br>
Suitable for new build, or replacing the failed headset on mountain bike (MTB) or road bike
Sealed bearing to fend off dirt, dust and water, ensuring long service life