Best Custom Bike Headset Caps Hey, we're familiar with "The Rules," but let's be honest, matching your socks to your eyeglasses? Well, that's just a little too much rule. But Harden The F*** Up! Yeah, we're all for that. It's cold. HTFU! It's too hot. HTFU! It's windy! H.T.F.U! Get out there, throw a leg over, and get the gettin'! You'll be better for it—and we all need a better you. Available in 10 beautiful colors, a custom bicycle headset cap is the simplest and most affordable way to enhance your ride. Replacing your bike headset top cover is extremely easy, and you will forever have a reminder of wisdom on display. This stem top cap will surely make your bike stand out, whether on a road bike or mountain bike. Key Features: Designed to fit 1 1/8" steerer tubes. 1 1/4" (32mm) wide. Permanent laser engraving blasts away a top layer of anodized aluminum to reveal a beautiful grayish-white lettering. Light & Light & Strong 6061 Aluminum Cap. Add a bolt to complete your own custom headset cap. Harden Up & Saddle Up!