Traditionally, the greatest flaw in ƒ??aeroƒ?� rims has been the valve hole. ƒ??Aeroƒ?� rims position a lot of very efficiently utilized mass in the base of the rim to support the spokes and give the rim good strength, then a huge hole is drilled through it for the valve stem and a massive weak-spot is created. With the Birdcage weƒ??ve offset the valve hole so that this section can retain its strength. A handy side-effect of this is that fitting a pump is now more convenient.
Aside from these original features, we spent a lot of time ƒ??sweating the small stuffƒ?�. Weƒ??ve ensured that the deep center allows for easy tire removal and fitting, and weƒ??ve made sure that the sidewalls, while slimmed down, are still suitable for brake use.
The end result is one of our most high tech rims to date. With a weight of just 408g (14.4oz) it outperforms most rims weighing 20-30% more, and the weight saving from the rotational mass of the wheel feels fantastic.