All Balls Racing - 8 Ball Extreme Duty Axle (AB8-CA-8-220) Options:(AB8-CA-8-220) 2019 - 2021 Aprilia RSV4

2019 - 2021 Aprilia RSV4 1100

Hydration packs come and go but if you are looking for ultra-tough

You also got a helmet carry system that detachable and stored in a pocket when not in use and an insulated water bladder pouch if you ever want to add a hydration bladder with the pack

The mounting kit is bike specific

All Balls Racing - 8 Ball Extreme Duty Axle (AB8-CA-8-220) Options:(AB8-CA-8-220) 2019 - 2021 Aprilia RSV4Leading edge 8 Ball technology. 8 precision ball bearings allow for a smoother operation and increased joint strength. Up to 35% larger cages and races for increased strength and durability. Textured Heavy Duty Powder Coating for ultimate rust and corrosion protection. Hi performance molybdenum grease reduces heat and friction. Precision machined for precise OEM fitment. Low profile stainless steel clamps.