ALTURA VORTEX WATERPROOF 4L CYCLING HALF FRAME PACK new_product Replaceable B-Knuckle cover and outer

Replaceable B-Knuckle cover and outer link

Shimano GRX400 2x10 drivetrain

The Quick connect bracket with 16-degree offset compensates for the seatpost angle

Accelerometer allows magnet-free measurement

Front derailleur: Shimano Acera

ALTURA VORTEX WATERPROOF 4L CYCLING HALF FRAME PACK new_product Replaceable B-Knuckle cover and outerDesigned for riders who refuse to let the weather dictate their ride, the Altura Vortex Waterproof Half Frame Pack offers reliable storage that stays dry, secure, and out of your way. Crafted from tough, waterproof materials, it shields your gear from rain and road spray, while the low profile design fits neatly within your frame for unobtrusive, balanced storage. Reinforced for long term use and fitted with easy to use straps, its built to handle