The rim is particularly light due to its 18mm profile. It has stainless-steel spokes, sealed bearing hubs and double aluminium walls. It is a classical, elegant wheel that is good quality for money. The hub has coaster brake, so if you pull back the pedals the bicycle will be brake.The size is 700c, meaning it is compatible with all road-bike tyres. You can mount 23, 25 or 28 tyres and will need a 30mm-valve inner tube. And it is crucial you mount a rim strip between the tyre and the inner tube to reduce or prevent punctures.