![]() Unless the return is due to a faulty product or an incorrect delivery on our part you will have to cover the cost of the return. Any item including bikes (but with the exception of food) can be returned to us for any reason provided it is received by us in an unused condition in or with its original packaging. In the unlikely event that you aren't, we offer a 90 day online return policy* in which you can receive a full refund. ![]() Obviously, we don’t know how accurate your hand grip tire pressure calibration is, but we can tell you that mini-pump dial gauges are very approximate, inline gauges only slightly better, leaving digital displays the best option but even they can be irritatingly inaccurate.At 99 Bikes our priority is to ensure that you are highly satisfied with your purchase. Gauges are a common upgrade option to get you to spend a bit more, but their usefulness depends on two things: How well you can judge tire pressure with just a squeeze and how accurate the gauge is. Are hand pumps with pressure gauges best? If you want the best of both worlds, then a combo package like Lezyne’s Pressure Drive is a great option. Cartridges are expensive though, even if you buy big catering packs on the internet, and make sure you recycle the cartridges to minimize waste. CO2 inflators are much smaller and provide an instant inflation hit if they work right, making them great for race or emergency situations. Pumps are bulkier and slower to use, but the air you use is free and you can top up pressure accurately as many times as you need to. The big choice for every purchase – and every ride – is whether to use a pump or inflator. Fold-out handles, screw-in hoses, and built-in storage can all make life easier if you use them, but expect them to lift the price. Frame clips are handy if you don’t use a bag, but make sure there’s an o-ring or handle lock to stop the pump rattling or extending. A head that automatically works with either valve type makes life easier in mixed groups and sealing caps (that actually work) are very useful in filthy weather. However, something that uses a lever to lock the head in place will make for much fewer chances of leaks. The simplest pumps like SKS’s Airboy XL slap straight onto the valve without any interference. What hand pump features should I look for? That means something in the middle like Crank Brothers Klic HV is the best bet for use across both road bikes and mountain bikes. Bigger shafts like Blackburn’s Mammoth are more likely to stick if they get dirty though, and high-volume pumps are hard work once you get to higher pressures. ![]() The bigger the tires you run, the more air you need your pump to move. Best mountain bike pumps: what you need to know before you buy What size bicycle hand pump is best? The fact you get two canisters included means it’s not as expensive as it looks at first glance either, and the build quality is properly bombproof, making this the head we always pack if we’re not taking an integrated pump set up. Pull it off and the cartridge shuts again, making it super easy to regulate the fill if you’re blowing up a smaller-volume gravel or road tire or working with frozen fingers in winter. The clever bit is that you then just push the spring-loaded head onto the valve which releases the air into the tire. Screw the included 16 or 20g cartridge onto the head and then back it off to open it. Like a lot of the best stuff, it’s a super-simple design. Genuine Innovations are inflator specialists so it’s perhaps no surprise the AirChuck head is the nicest we’ve used. Just be careful when unscrewing the hose from Presta valves as they can sometimes unscrew the valve core in the process, dumping all the air you’ve just put in. ![]() That means the pump and cartridge can sit on your frame or you can just attach two cartridges and the hose to frame tubes or seatposts for racing, which creates a really versatile, decent value set-up that’s impressively tough. Lezyne also includes a secure, rattle-silencing multi-clip bottle bolt mount as well as a cunning double-barrel neoprene sheath and twin-strap system. You get a CO2 cartridge supplied with the pump too so you’re good to go straight away. However, the screw-in braided metal hose also has a puncture pin to open CO2 canisters for super-fast tire inflation. The alloy pump with a separate screw-in hose design is decidedly retro and the short, relatively small-bore stroke takes a while to get pressure up by hand. Lezyne thinks harder than most about products, and the Pressure Drive is a particularly neatly packaged version of a system that lots of brands also produce.
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