SIDE LOADING FOR SMALLER FRAMES - BONTRAGER SIDE LOAD WATER BOTTLE CAGE - RIGHT. The perfect solution for anyone riding with a compact frame, the Bontrager Side Load Water Bottle Cage lets you grab a drink when you're on the go. A ligthweight yet durable construction will last you a lifetime, and is suitable for any type of ride. If you're headed through the streets or through the trees, you're gonna need the Bontrager Side Load Water Bottle Cage to come with you.