The optimal addition for any touring and travel bike, designed for rides in remote, dry, and hot areas where sufficient water reserves should be carried. Suitable for transporting bottles with a diameter of 89-92 mm. The bottle holder can be adjusted to different bottle lengths ranging from 300-340 mm using a knurled screw. Additionally, the bottle is securely held in place by a rubber sleeve. Note: The Modula XL bottle holder is only suitable for 1 to 1.5-liter PET bottles - standard bicycle water bottles are not compatible.