Truvativ descendant seatposttruvativs descendant seatpost is tough and reliable very lightweight and with its easy to adjust head youll be able to precisely dial in the perfect saddle angle for lasting comfort and pedalling efficiency ideal for cross county and all mountain use once its fitted you can just forget about it taking for granted that it will provide the support you need no matter how rough the trail gets features material3d forged al 7050 aluminium post and head hardware