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| DRIVE UNIT |
| BATTERY |
| DISPLAY |
| FRAME |
| FORK |
| REAR SHOCK |
| HEAD SET |
| SHIFTERS |
| FRONT DERAILLEUR |
| REAR DERAILLEUR |
| CRANKSET |
| BOTTOM BRACKET |
| CHAIN |
| CASSETTE |
| BRAKES |
| ROTOR SIZE |
| WHEELSET |
| TIRES |
| HANDLEBARS |
| STEMS |
| GRIPS |
| SEATPOST |
| SEATCLAMP |
| SADDLE |
| INTENDED USE |
Top caps are a simple and inexpensive way to customize your bike. Most all headsets come with top caps included, but if you want to be unique and stand out in a crowd, grab yourself a custom top cap. A top cap connects to the bike via a M5 bolt that screws into a star nut that is installed in the steer-tube of the fork. Some top caps come in a pack that includes a star nut and bolt, while others just come as a replacement cap.
A standard top cap is essentially the same as every other top cap. They may vary in design and color, but they all accomplish the same thing. A top cap is used to tighten the headset of a bike. To do this, the stem of the bike must be loose around the steer-tube, so it can slide as the headset is tightened.
A lot of companies have started to make top caps that serve other purposes besides tightening the headset. A common modification is a design that allows you to put a bottle cap on top of the top cap. This allows you to stare down at the bottle cap of your favorite beer or soda pop while you are shredding down a trail or cruising on the road.
Some companies have also designed top caps that ditch the conventional star nut and bolt setup. These top caps consist of a lower connected piece that expands inside the steer-tube, a bolt on the top can then can be tightened to secure the headset together. The advantage of this style of top cap is that a permanent star nut doesn’t have to be installed.
If you have any questions about top caps, hop on a call or a chat with one of our expert Gear Advisors today at 888-880-3811. They are always happy to help you with any questions you may have.
Every single detail on your bike says something about you and your ride, even the headset cap. It’s a tiny powerhouse, one of those small touches that really brings your setup together, both in how it rides and how it looks. Maybe you’re building a new bike from scratch, replacing a worn-out part, or just adding a bit of personality to your cockpit. No matter what your project is, we’ve got you covered. We’re here to equip your adventure. We carry bicycle headset caps from trusted brands that we and other riders love, so you can snag an upgrade with confidence and make every ride feel smoother and more personal.
Whether you ride a mountain bike, road bike, or gravel bike, the right bicycle headset top cap helps keep your steering smooth and responsive. What’s your vibe? Choose from a variety of:
Most caps are compatible with standard stem and steerer setups, making installation simple and reliable.
Swapping your bike headset cap is a quick upgrade you can do at home with minimal tools. Seriously, it's that easy. It’s a small project that can make a big difference in how your cockpit looks and feels.
Headset caps are one of the easiest ways to personalize your bicycle cockpit. They come in various finishes and laser-etched designs that can totally reflect your personality or match your bike’s color scheme.
If you’re focused on speed and weight savings, ultralight bicycle headset caps from brands like Wolf Tooth Components and Deity are the ideal choices. Shedding grams never hurt anyone.
Every bike headset cap at Jenson USA is backed by our commitment to quality and fair pricing. You’ll find a wide range of options to suit your build and riding style. No matter your riding style or budget, Jenson USA makes it easy to find the perfect top cap to complete your build.