The topeak transformer rx pump with stand and bag is based on the superb idea as the transformer x however the rx is designed with a more compact folding design the transformer comes with two adjustable frame hooks which allow you to prop your bike on and pump without having to hold on to your bike or lean it up against a wall for it to get scratched the barrel of the pump is constructed from a high pressure aluminium with a durable composite base the head of the pump has the capability of p