Perhaps this may interest someone. Checking the tires on my BV 400 was difficult with my angle head digital tire gauges. After some searching I found an SKS brand 90 deg. Swivel head tire gauge that works on Shrader and Presta tire valve stems. So you can use in any tires including the special type bicycle tires. You can turn the head so the digital readout is facing you wherever/however you use it. It has large lit up numbers. It also has a button to release air if tire was overfilled any without taking the gauge off the stem ( just pressed down like most gauges).It appears to be quite well made and accurately is as good as my other digital tire gauges. It's $28 on Amazon. A little pricy for a tire gauge, but so easy to use not having to fight getting it to work in the limited space/area. I have no ties to either of these companies. Very happy with this product. Sorry for such a large pic.