The Niner YAWYD (you are what you drink) stem cap is one of my favorite cheap upgrades. I change the cap out regularly to match my latest drinking trend. Right now, it's
Niner YAWYD Top Cap - Components
Niner YAWYD Top Cap | Tree Fort Bikes
OUROBOROS Bike Headset Top Cap Black Custom Engraved - Etsy
Niner YAWYD Top Cap | Tree Fort Bikes
Niner YAWYD Top Cap Accessory
NINER 「ナイナー」YAWYD TOP CAP トップキャップ | バイチャリ公式オンラインショップ 【スポーツ自転車買取販売専門店】