Pumps/Inflation

The Super Patch Kit is comprised of a small plastic case, a piece of sandpaper for roughing up the tube and 6 peel-and-stick patches so no gluing is required. The patches stick fast thanks to 3M technology and they're thin and flexy to stretch with the tube. There's no easier way to patch a tube.

Topeak's Road Morph G is the perfect answer for riders who've had trouble deciding if they want a frame or floor pump. The Road Morph is both! For maximum pumping power, it features a high-volume aluminum barrel, a fold-out base, a long hose with built-in gauge and a T-handle. Of course, it fits Presta and Schrader valves and a frame mount is included, too.

Park Tool's Micro Pump is a super small micro pump that fits in just about any bag or jersey pocket or mounts directly to the frame. Ideal to take along when space and weight are an issue. Aluminum barrel with a locking dual head and soft-touch dual-density flip out handle. - Presta and Schrader valve compatible - Maximum pressure: 100 psi / 7 bars - Weight: 3.7 ounces (105g) - Length: 7 7/8" (200mm) - Includes mounting hardware to securely attach to water bottle bosses or under bottle cage

Topeak's Pocket Rocket boasts an aluminum barrel for superb function, durability and max pump power, while its plastic handle ensures pumping comfort. And, its aluminum thumb-lock head fits both Presta and Schrader valves.

The JoeBlow Sport with unique 2-stage design delivers both high pressure and high volume in record time. Stage one opens both barrels for huge volume, reaching 30 psi with 30% less effort than standard floor pumps. Stage two utilizes the small barrel for pressures up to 160 psi. Hammer type TwinHead DX5 pump head with an extra-long and tangle-free hose makes it easy to reach valve stems. A durable steel barrel and large steel base provide extra stability. - Head: Hammer type TwinHead DX5, Presta / Schrader / Dunlop valves with extra-long 360 pivot hose - Barrel: Painted steel / anodized aluminum - Gauge: 160 psi / 11 bar, 3" mid mount analog Stage 1 : 0 - 30 psi Stage 2 : 30 - 160 psi - Volume Per Stroke: 715cc (Stage 1), 258cc (Stage 2) - Handle: Oversize / Dual density polymer - Base: Hardened steel - Ball / bladder heads, Hose dock - Size: 74 x 26.6 x 18cm / 29.1" x 10.5" x 4.6" - Weight: 2.5kg / 5.51lb

Topeak's Pocket Shock DXG lets you fine-tune air forks and shocks with ease thanks to its easy-to-read gauge. Its compact design easily fits in tool boxes, jersey pockets, hydration packs and seat bags. The durable aluminum barrel makes it easy to inflate shocks up to 300 psi. Other great features include a pressure-release button and rotating hose for those hard-to-access shock valves.

Mountain TT Twin Turbo pump fills both large volume fat bike tires and higher pressure MTB tires, as well as gravel bike tires with ease. TwinTurbo technology uses both strokes to compress air to deliver high pressure output and saves time and effort. Integrated dust cap keeps pump head clean and thumb lock lever ensures air-tight seal. Specs - HEAD: Presta / Schrader / Dunlop with integrated dust cap - BARREL: Aluminum - THUMB LOCK / HANDLE: Plastic - CAPACITY: 120 psi / 8 bar - VOLUME PER STROKE: 90.9 cc - SIZE: 22 x 5 x 4 cm / 8.7” x 2” x 1.6” - WEIGHT: 192 g / 6.77 oz Added Feature - Side mount bracket

High-volume pump holds securely to bike frames and includes stable folding foot for on-the-go inflation ease. The pump with something to prove The Bontrager Mini Charger is a high-volume, frame-mountable bicycle tire pump that includes a long hose for ease and versatility. A practical folding foot stabilizes while you pump, for faster tire inflation. Product details - High-volume frame mount pump - Stable, folding foot for pumping ease - Long hose gives versatility and saves your valve stems

The Sport Floor Drive floor pump features a steel barrel and piston with a tough composite matrix base for years of reliable use. Its oversized 3.5-inch gauge makes reading the pressure a breeze. - Extra-long, high-strength hose with composite matrix couplers - Durable, painted finish with varnished wood handle - Standard height - 220 psi max

Topeak's Joe Blow Sport II quickly inflates tires thanks to its durable steel barrel and base, a tight-sealing aluminum thumblock head that fits Presta and Schrader valves as well as an oversized, padded handle. Plus, the easy-to-read gauge lets you dial in the perfect pressure every time!

- Digital pressure gauge - Fits both Schrader and Presta valves - Digital screen

A reliable floor pump featuring a durable steel barrel, an auto-select head, and a stable base. Fresh air for your tires Nothing slows a cyclist down like an inappropriate amount of tire inflation. Loaded with features like a stable, tip-resistant base, a durable steel barrel, and an auto-select head, the Charger stands ready whenever your tires need a little boost. Product details - Steel construction and replaceable internals provide long-term durability - Auto-select head instantly fits both Presta and Schrader valves - Large, stable base minimizes tipping - Easy-to-read 3-inch base-mounted gauge - Max pressure 160 psi (11bar)

A clever, compact mini pump with hidden hose, pressure gauge, and concealed CO2 inflator. Designed with a chamber for higher-pressure tires, Air Rush Pro Mini Pump is a premium option for quick and easy manual inflation up to 100 psi—or use the included inflator found tucked inside the handle for effortless CO2 inflation. While not in use, Air Rush Pro stows easily in a jersey pocket or mounts cleanly under a water bottle cage with the included bracket. Product details - Two-in-one design combines CO2 inflator and mini pump - Flexible rubber hose quickly connects to pump body with magnetic attachment - Hose can be concealed inside pump when not in use - Pump head securely threads onto Presta and Schrader valves - Presta-compatible CO2 inflator securely stored in threaded handle - Folding handle locks into place to add comfort while inflating - Use included bracket for clean mounting that easily fits under bottle cage

Park's Vulcanizing Patch Kit includes 4 round patches for small holes and 2 oval patches for wider cuts; a tube of self-vulcanizing glue that bonds the patches to your tube super securely; and sandpaper for preparing the punctured area for gluing. The kit comes in a small plastic box to fit in your seat bag or pack.

Air Force Tier One floor pump Features: - Ergonomic Polymer Handle - 2" Analog Pressure Gauge (PSI/BAR) - Simple Valve Head (Presta/Schrader) - Integrated Hose Keeper - Steel Pump Barrel and Thermo Carbon Base Specs: - Color: Black w/ White Graphics - Capacity: 160 PSI - Weight: 998 Grams - Height: 25 1/4"

- For use with Bontrager CO2 cartridges - Regulator design provides safe, controlled operation - Reusable cartridge insulator keeps hands protected while inflating - Compact and lightweight design is easy to store for any ride - Spring-loaded mechanism regulates airflow for both Presta and Schrader valves

A versatile floor pump that allows for easy transition between high volume and high pressure settings. A pump for road and MTB The Dual Charger Pump is versatile floor pump with multiple pressure settings that let you easily inflate high-pressure road tires and larger volume hybrid and MTB tires. A quick flip of the switch moves between settings, making it perfect for riders who own both a road and mountain bike. Product details - Steel construction and replaceable internals provide long-term durability - Auto-select head instantly fits both Presta and Schrader valves - Large, stable base minimizes tipping - Easy to read 4-inch base-mounted gauge - Base-mounted switch allows for easy transition between high volume and high pressure settings - High volume setting allows for quick inflation - High pressure setting allows for easy inflation as PSI increases - Max pressure 160 psi (11bar)

- Standard threaded cartridges are 3/8" x 24tpi thread to fit any brand inflator - Law prohibits ORM-D materials from shipping by air - Box includes 20 CO2 cartridges

The high-pressure portable hand pump with hidden hose, pressure gauge, and co2 inflator. Details - Premium pump with flexible rubber hose that hides inside the body of the pump when not in use—perfect for those stealth air-strikes! - Features also include a concealed co2 inflator (Presta only), air pressure gauge, magnetic head with twisting collar, a folding and locking handle, and a Presta/Schrader valve adapter (fully threaded Presta valve bodies only) - Hp (high pressure) version recommended for tires 45c and narrower - All klic pumps come with a bottle cage bracket mount Specs - Length: 260mm - Pressure: 120psi/8.3bar - Warranty: 5 years - Weight: 170g

You’ve paid for full suspension, now it’s time to use all of it. When the trail gets steep and rough, can you tell the difference between 150psi and 170psi by pressing down on your saddle? No, you can't; and neither can we. The Blackburn Honest Digital Shock Gauge can. With pro shop-level precision, and a zero leak valve, the digital readout will ensure you put exactly the pressure you need in your shock. The days of "giving it a bounce in the lot" are over! - Accurate within 1% of pressure - Compatible with all thread on air shocks - Rated to 350 PSI/24 BAR Max - Shop precision quality - Zero leak valve - Replaceable battery - Auto on/off - Easy to read digital gauge - 215g

Easy inflation The convenience of CO2 with the ever-ready capabilities of a mini pump, the Air Rush Road combines safe, controlled CO2 inflation with the back-up security of a telescoping pump. At just 72g, the Air Rush's compact design easily fits in a jersey pocket or seat pack. Product details - 2-in-1 design combines CO2 inflator and mini pump - Ultra-compact size easily fits in a jersey pocket or seat pack - Includes reusable cartridge insulator to protect hands - Pump inflates tires if you're out of CO2 - 72g - Includes two 16g cartridges, mounting bracket, and required hardware

Lezyne's Micro Floor Digital Driver is their ultimate portable pump with an integrated, highly advanced digital gauge. Lightweight CNC-machined aluminum barrel, piston, base, and T-handle optimized either for high-pressure (160 psi max) or high-volume (90psi max) applications. Long, versatile hose improves pumping convenience. Stainless steel foot peg stabilizes pump during use. - ABS Flip-Thread Chuck equipped - Includes composite matrix frame mount

A digital shock pump with an accurate, easy-to-read gauge and a thread-on design that minimizes bleed-off so you can easily adjust your shock pressure. Digitally dialed Dialed suspension is crucial to a great ride. Upgrading to the Bontrager Digital Shock Pump will make it easy to dial-in front and rear suspension with confidence. It features a large, easy-to-read digital gauge that displays PSI/bar/kg/cm2, a bleed valve for fine-tuning pressure, and a thread-on design that quickly attaches for a reliable, secure connection. Product details: - Easy-to-read gauge accurately reads up to 300 PSI (20 bar) - Threaded design for a secure connection that reduces bleed down - Bleed valve reduces pressure in small increments - Suitable for use with front forks and rear shocks - Displays PSI, bar, or kg/cm2 - Replaceable CR2023 battery Features: Easy-to-read digital gauge A broad, back-lit digital gauge provides accurate pressure readings to a maximum of 300psi (30 bar) Minimize connection bleed off Fast and secure connection minimizes bleed off when connecting and disconnecting Bleed valve to fine tune suspension The bleed valve allows you to release small amounts of pressure to fine tune your suspension to exactly where you want it Specs: - Pump type: Suspension - Valve: Schrader - Gauge type: Digital - Max pressure: 300psi - Frame mounted: No - Dimensions: 292mm (11.5") - Hose length: 25.4cm (10")

For all of the following models: - Carbon Drive - Alloy Drive - Tech Drive HV - HV Drive - Sport Drive HV - Micro Floor Drive HV - Micro Floor Drive HVG - Swivel Drive HV

The JoeBlow Pro DX’s new design brings form and function together for great performance in a floor pump. The aero-shaped aluminum barrel and wide base provide stability when pumping and the 3” top mounted analog gauge is easy to read up to 160 psi (11 bar). The large padded handles provide comfort while the extra-long hose can even reach wheels on bikes mounted in a stand. The new SmartHead with lower profile air release button automatically adjusts to fit either Presta or Schrader valves and makes getting the right pressure a simple task. - Head: SmartHead DX1 full metal pump head w/ air release button & x-long hose - Gauge: 200 psi / 14 bar - 3” top mount analog - Base: Aluminum / Rubber - Barrel: Polished aluminum - Handle: Oversize dual tone - Added Features: Dunlop valve adapter, Presta valve adapter, Ball / bladder heads, Hose dock - Size: 74 x 28 x 14 cm / 29.1” x 11” x 5.5” - Weight: 1.8 kg / 3.97 lb

Topeak's CO2-Bra CO2 Inflator gives you speed and convenience when it's time to fix a flat. A flip-up thumb lever puts precise flow control in your hands while the ergonomic handle gives you a better grip while inflating. An integrated safety ring prevents accidental cartridge puncture during storage. The CO2-Bra accepts threaded 16g cartridges and works with both Schrader and Presta valves.

Why carry two separate pumps for your tires and your suspension? Topeak's Shock 'n Roll does it all, and does it well. Its aluminum barrel is only 9.8 inches long, but this little wonder packs a wallop, it'll inflate your tires, your fork or your shock up to 300psi. Though, that might be a bit much for your tires! A 2-stage selector makes it easy to switch between the two, and the SmartHead fits both Schrader and Presta valves. Other great features include a pressure-release button that lets you fine-tune your pressure with ease thanks to its easy-to-read gauge and a rotating hose for those hard-to-access shock valves.

220 PSI replacement analog pressure gauge for all standard floor pumps, includes glue and o-ring. Highly precise with an oversized 2.5 inch face, this new gauge increases visibility and allows the user to read a more precise measurement of low and high pressure tires.

Topeak's Joe Blow Max II quickly inflates tires with a durable steel barrel, a sturdy composite base, a tight-sealing TwinHead that fits Presta and Schrader valves and a padded handle. You'll also appreciate the easy-to-read gauge.

Bringing Lezyne's Smart Kit along means not letting a flat ruin your ride. It contains six glueless patches, a tire boot and a stainless-steel tube scuffer. All of this is stored in a compact pouch that fits just about anywhere for the ultimate in portability.

Easy to use, powerful, durable and economical, Park Tool's PFP-8 Home Mechanic's Floor Pump has a place in every garage and home bike shop and is perfect to take along to cycling events, too! It inflates like a champ thanks to its sturdy steel barrel, tough handle, composite thumblock head that fits Presta and Schrader valves, sturdy steel base, long hose and extra-large, easy-to-read gauge.

Crank Brothers' Gem Pump packs a powerful punch for its small size and low weight. It'll inflate your tires to 130psi quickly with its dual-piston design. Plus, its aluminum barrel and high-volume/high-pressure (off-road/road tires) settings make inflation easy. The Gem fits Schrader and Presta valves, too.

Air up your bike tires in a hurry with Topeak's JoeBlow Race Floor Pump. Its steel barrel, sturdy composite base and oversize padded handle make inflating high volume tires an easy task. For versatility, its easy SmartHead pump head tightly grips both Presta and Schrader valves, and the air release button lets you quickly fine-tune your pressure. You'll also appreciate the easy-to-read top-mount gauge and the extra-long hose.

- Replacement ABS Flex Hose for Lezyne hand pumps - Presta/Schrader ABS Flex Hose for HP, HV, Alloy, Pressure, and Tech Drive hand pumps

The Micro Floor Drive XL is a portable hand pump with floor pump capabilities developed to efficiently inflate fat bike tires. It features a CNC-machined aluminum construction, which keeps its weight to a minimum without sacrificing durability. An extra-large, high-volume barrel produces large amounts of air with each pump and can inflate tires up to 35 psi (2.4 bar). A long, integrated hose and a stainless steel foot peg improves pumping efficiency and reduces trailside downtime. The ABS Flip Chuck is compatible with both Presta and Schrader valves and threads into the pump’s base for optimal storage.

Efficient mid-high pressure mini pump with built-in extendable hose and easy-to-read dial pressure gauge. Achieves a higher maximum pressure with less effort. - 20mm 6063-T6 aluminum barrel. - 32mm dial gauge is accurate to +/- 2 PSI. - TIPFLIP reversible valve with alloy cap and alloy locking lever, fits Schrader and Presta valves. - 160mm extendable hose relieves stress on valve stems. - 268mm total length. - 110 PSI Maximum pressure. - Weight: 125g

- Mid-volume steel barrel and piston with composite matrix base - Precision 3.5-inch gauge (100 psi / 6.89 bar) - Extra long, high-strength hose - Varnished wood handle - ABS1 Pro with Presta/Schrader valve chuck

- Aluminum barrel - Aluminum lever and valve cap - Inline gauge - SoftGrip handle - Reversible valve for Schrader/Presta - 100 psi - Ultra Compact 7.5" length (190mm) - Includes frame mount bracket, screws, and optional strap

Compact and super-efficient high-volume bike hand pump featuring a knurled barrel for superior grip while pumping. Its proven engineered design with an overlapping handle is constructed from machined aluminum, with superior durability, minimal weight, and all of the style. The integrated ABS Flex Hose is Presta and Schrader valve compatible and greatly improves pumping action and ergonomics. This mini pump is completely rebuildable and made with the best materials available. With up to 90 PSI (6.2 BAR) of pumping power, the Grip Drive HV is excellent for all-mountain bikes and gravel bikes. Includes a lightweight Composite Matrix frame mount. - Max pressure: 90 PSI | 6.2 BAR - Small: 186mm | 119g - Medium: 231mm | 134g

- Z-switch System (Presta, Schrader and Dunlop compatible) - Wide Gauge - Steel Base for better stability - Ball and Bladder Heads - Max Pressure 9 bar / 130 psi - Hose length: 800mm

- Dual purpose pump with high-pressure mode for shock inflation and high-volume mode for tire inflation - Aluminum barrel - 1.5" gauge is rubber coated for impact protection - 1-2PSI micro adjust button - Includes Presta adaptor for tire inflation - Soft grip handle - Compact 10" (254mm) length makes this easy to take on every ride - Includes frame mount bracket, screws, and optional strap

- Pocket size - CNC machined aluminum - Compact highly efficient overlapping handle - Presta and Schrader valve compatible ABS Flex Hose - Includes integrated valve core tool - Aluminum mounting bracket - 140mm/160psi - 160 PSI / 11 BAR - Length 140mm - Weight 98g - Loaded includes twin speed drive CO2 head, 20g CO2 cartridge and lever kit

Airspy Wheel Mounted Air Sensor—Schrader mounts on the wheel/valve and gives constant readout of tire pressure on either the SKS MYBIKE app or Garmin device. - For front and rear wheels - Includes battery and security lock - For Schrader valve stems - Reads to 8.3 bar / 120 psi - Weight: 18 grams

High volume for big tires, high pressure for skinnies. Simple. The Airstick 2-stage is a durable aluminum pump with enough puff for mountain bike tires and enough pressure for road tubes too, thanks to the two-stage high pressure/high volume switch. - Presta head only - High Volume or High Pressure - Includes frame mount - 85 gr/ 3oz - 160 PSI, 11 Bar maximum

SKS's Mountain Suspension Pump is a perfect addition to your off-road pack. It features high-quality aluminum construction, a mini gauge and a pressure-release valve. And, the flexible steel mesh hose boasts a 2-stage thread connector so removing the pump doesn't release any air pressure from your suspension.

The TL-Head Set pump head is a new solution from SKS for all tubeless tire inflation. It is compatible with SKS floor pumps and all others with a 5.0-5.7mm hose size. The TL-Head Set can be used both for conventional pumping and with CO2 cartridges for a simple seating of tubeless tires. It comes in a practical set containing 2 tire levers and 2 16g CO2 cartridges. - Includes TL-Head, two 216g threaded cartridges and two tire levers - Compatible with Presta, Schrader and Dunlop valves

The classic SKS Multi Valve head has been completely revamped! Now you can seamlessly lock the pump head with one finger. The new MV EASY head features improved functionality, a sleek design, and better handling. The head is made of high glass fiber-reinforced plastic. This head features separate holes for use on either Presta or Schrader valve types. Say goodbye to unwanted whistling and stuck check valves, thanks to the new Rocker technology that SKS Germany has put in the new MV EASY pump head. - Max Pressure: 230 PSI - Will work with all SKS floor pumps

Replacement MV EASY Multi-Valve head with hose. This item is compatible with the Air X-Plorer 10.0, Airmotion 12.0, and the Air X-Plorer Digi 10.0. The kit contains an MV EASY multi-valve head and a 1200mm hose.

- Great entry level pump in a compact form - Features a steel air chamber plastic base and rubber textured handle for easy grip - Updated MV Easy Head valve allows for Presta/Schrader/Dunlop valves and also is consumer serviceable

Combine the best elements of all of Blackburn's mini-pumps and what do you get? The Core CO2'Fer Pump. The Core CO2'Fer is an excellent stand-alone mini-pump that adds the versatility of an integrated CO2 inflator and the peace of mind of a Presta valve tool, ensuring nothing goes wrong when all you need is an inflated tire. A remote inflation hose takes unwanted stress off the tire valve. - Removable CO2 inflator - 120 PSI - Thread-on Presta/Schrader - Retractable hose - Removable Presta valve core tool - Includes 16g cartridge, frame mount, CO2 strap

2 in 1 design! This unique product works like a mini air compressor that allows any floor pump to compress air into the 1000cc aluminum air tank. Then, it quickly releases a high volume of air to mount tubeless tire beads. The aluminum TubiBooster head also works as a CO2 inflator, compatible with Topeak threaded 16g/25g CO2 cartridges. - Pump Head Compatibility: Presta pumps - Tire Valve Compatibility: Presta / Schrader valves, Push to inflate - Air Tank: One liter, Store up to 200psi / 14bar air pressure (varies with the pump capacity) - Working Pressure - 1800psi / 124bar - Compatible with Topeak threaded 16g / 25g CO2 cartridges - Material: Aluminum

The CNC Digital Drive is the ultimate, professional-grade bicycle floor pump which features a large digital gauge. Its full CNC-machined aluminum construction and hardware are built to last a lifetime, and replacement wear parts are readily available. Highly accurate, easy-to-read 3.5” (88.9 MM) digital gauge. The CNC Digital Drive comes with an extra-long, nylon-reinforced braided hose with aluminum couplers. At the end of the hose is the top-of-the-line ABS1 Pro floor pump chuck. - CNC-machined aluminum construction - Precision 3.5-inch digital gauge (220 psi / 15 bar) - Extra-long nylon reinforced braided hose with aluminum couplers - ABS1 Pro for Presta and Schrader chuck

Essential for your off-road adventures, this pump produces a hurricane-force air blast with its high-volume barrel. The oversized design, made from strong and lightweight aluminum, delivers more air per stroke so you can get back on the trail quickly. Details: - AnyValve pump head automatically adapts to Presta, Schrader, and Dunlop valves - Rebuildable internal parts available - Tough, lightweight aluminum barrel - Rubberized folding T-handle - Bike mount included - 90 PSI, 6.2 Bar maximum - 145g / 0.32lb

Pssstttt. Tired of hearing that when you disconnect your shock pump? Well, hear it no more thanks to Topeak's Pressure-Rite. It's a must have for suspension fanatics as its ingenious design prevents air loss when adjusting shock and fork pressure. It's also available in a Presta version, perfect for disc wheels.

Topeak's AirBooster Race Pod is a compact and completely self-contained tire inflation kit featuring an AirBooster CO2 inflator, two tire levers, two 16g CO2 cartridges, and a mounting module with strap and neoprene bag. The unique mounting module straps to the seatpost, seat tube, and provides lightning fast access to the AirBooster inflator, extra CO2 cartridge, and tire levers. The Airbooster Race Pod is the perfect CO2 tire repair solution for racing or endurance events.

Topeak's Joe Blow Max HP quickly inflates tires with a durable steel barrel, a sturdy composite base, a padded handle, and a tight-sealing TwinHead that fits Presta, Schrader and even Dunlop valves. You'll also appreciate the extra-long hose and big, easy-to-read gauge.

Lezyne's Micro Floor Drive HPG is a powerful mini-pump that thinks it's a floor pump. Its fold-out foot peg and aluminum construction make it easier than ever to pump up to a maximum pressure of 160 psi. You'll appreciate the ergonomic handle, extra-long hose with an inline pressure gauge and Presta/Schrader-valve compatibility. A frame mount and Speed Chuck is included, too.

Topeak's RaceRocket boasts aluminum construction for superb function, durability, and max pumping power. Its small size easily fits into a jersey pocket and with a capacity of 120 psi you'll have no problem getting rolling again. The RaceRocket's extendable hose with SmartHead fits both Presta and Schrader valves and lets you pump from a more comfortable angle, lessening chances of valve breakage.

Topeak's RaceRocket MT boasts aluminum construction for superb function, durability, and max pumping power. Its small size easily fits into a jersey pocket and with a capacity of 90 psi and a large-diameter barrel you'll have no problem getting rolling again. The RaceRocket's extendable hose with SmartHead fits both Presta and Schrader valves and lets you pump from a more comfortable angle, lessening chances of valve breakage.

The Airchecker from SKS is a fast and easy way to check your tire pressure. The swiveling head makes it a snap to reach your presta or schrader valve stem at any angle, and the backlit display with extra-large LED digits is always easy to read. This gauge measures up to 144 psi and reads in 10ths of psi.