Hey cycling enthusiasts! These Aries Automotive extension arms are exactly what you need when you've got more bikes than rack space. Designed specifically for the CURT 18021 hitch-mounted bike rack, they easily transform your 2-bike setup into a 4-bike carrier - perfect for family trips or group rides. The installation is seriously straightforward - just bolt them into place and you're ready to roll. The rubber cradles are fantastic because they hold your bike frames securely without scratching the finish, which is always a worry with metal-on-metal contact. The black powder coat finish isn't just for looks - it provides solid protection against rust and weather damage, so these arms will last through seasons of use. What I really love is the flexibility - when you only need to carry two bikes, you can remove the extensions and keep your rack compact. They come with a one-year limited warranty too, which gives you peace of mind about the quality. Whether you're heading to the local trails or on a cross-country adventure, having that extra capacity means nobody gets left behind. Seriously, if your family's growing or you often ride with friends, this simple upgrade saves you from buying a whole new rack system.
Free 30-day returns 
Free 30-day returns
