Our Fattest Version In The Racerocket Series This All Aluminum Mountain Pump Gets Big Volume Tires Up To Pressure Fast. This Elegant Little Mini Pump Features A Full Aluminum Body, Head & Pump Handle & Is Designed With An Increased Barrel Diameter To Push More Air Per Stroke. An Extendable Hose With Smarthead™ Threadlock Fills Presta & Schrader Valves With Ease & Helps Take Stress Off The Valve Stem When Filling The Tire. Its Efficient & Smooth Action Inflates Tires To 90 Psi / 6 Bar. Compact In Size It Easily Fits In A Jersey Pocket Or Saddle Bag & With A Low Weight Of Only 114 G The Racerocket Mt Is Never A Burden To Carry Into The Backwoods. Note : Threadlock Pump Head Should Be Used With Caution On Do Removable Valve Core Type Presta Inner Tubes & Tubular Tires As The Valve Core May Be Inadvertently Removed When Unthreading The Pump Head. To Reduce The Possibility Of Accidental Removal Of The Valve Core, Ensure Threadlock Is Installed & Removed Correctly & In Line With The Valve Stem.Added Featuresdust Cap Includes Side Mount Bracket (Art No. Trr-Mt1C) Barrelcnc Aluminum Capacity90 Psi / 6 Bar Handlealuminum / Rubber Headsmarthead™ Threadlock W/ Integrated Dust Cap Fits Presta / Schrader Valves Size.6 X 3.7 X 3.3 Cm / 7.7” X 1.4” X 1.3” Weight114 G / 4.01 Oz Trr-Mt1B