Bottle cages are still the simplest way to carry water with you and the Entity BC15 Alloy Bottle Cage is both lightweight and extremely durable, due to its 6 millimetre tubular alloy construction. Water bottle cage mounts are universal to every bike in the world, so you can be sure that the Entity BC15 will fit your bike. 6mm tubular alloy bottle cage Fits all regular water bottles Super light alloy construction