Topeak Spares
Has the famous inflation system that works perfectly, when you're flat or down as you blow up and when you want to lose you hit the button and deflates, topeak spares Quality!. By selling the old bike I dismounted to keep him but the new one came as quite comfortable and do not use it now. There are even Chain parts and accessories that you can "adjust" to this model, such as spotlights, bags under the seat, etc that fit into the groove worn underneath for that purpose. Is very well thought out. I blow up with the "knob" that you have under the toe of the saddle, is like a membrane press it repeatedly to go slowly inflating. .