The TranzX 23J Dropper Seat Post, with a 30.9mm diameter and 170mm travel, is crafted from durable Alloy #7075-T651 and features a polished black finish. It offers up to 200mm travel and includes an up/down dropper lever for convenience. Ideal for both trail riding and city cruising, it provides reliable performance at an excellent price. SKU: JD-SP23J-309-170.