Cyclists and bike mechanics, these ONIPAX adjustable headset spacers are genius for fine-tuning your bike's fit and handlebar height. The 1 1/8 inch size fits most modern MTB, road bikes, and BMX stems perfectly. The brilliant adjustable design lets you choose from 10mm, 11mm, 12mm, 13mm, or 15mm heights with the same set - no more buying multiple spacer sizes! Made from durable polycarbonate that's strong enough for serious riding but lightweight enough not to add unnecessary weight. The colored options let you add some personality to your bike build while maintaining professional functionality. Perfect for dialing in that perfect handlebar height, making adjustments after a bike fit, or customizing your ride position. Installation is straightforward - just stack them under your stem like regular spacers but with the flexibility to adjust height as needed. Whether you're building a new bike, upgrading your current ride, or doing maintenance, these adjustable spacers save time and money. Seriously, if you're tired of buying multiple spacer sizes or can't quite get the perfect height with standard spacers, this innovative design gives you ultimate flexibility. Your bike setup will be more precise, and you'll have the tools to make quick adjustments as your preferences change.
Free 30-day returns 
Free 30-day returns
