Top positive review
72 people found this helpful
Quite adequate... so far
on November 30, 2010
I bought the RP4100 to top off my motorcycle tires without having to crank my shop compressor and needlessly charge it's big tank. At the pressures I require-- 35 to 45 psi-- the unit works well. In the higher pressure range it takes a little time to reach the target setting, but it's FASTER than I thought it would be at its fair and reasonable price.
I am experiencing only one complication with the unit. Rather than a threaded, screw-on connector, it uses the more common (and cheaper)clamp-on, lever-operated device to attach to the valve stem.
Access to motorcycle valve stems is difficult enough without this added contorionist's task, but eventually you get the thing connected. The problem arises in DISconnecting. The valve attachment is a very tight one, and by the time you flip the lever and pry the connector OFF the stem, you've lost considerable pressure. I've had to learn to OVERinflate the tires and then hope I can get the connector off before I lose air to below my desired setting.
If you're NOT a motorcyclist, this would be MUCH less of a problem in other applications, such as car or bicycle tires, athletic equipment, etc.
As I say, the RP4100 works pretty hard to get to 40 psi. It doesn't strain or complain, but I'm waiting to see just how durable the unit is. I'm writing this review at the end of November, 2010. If the unit fails, I'll add an update. You can judge by the date on which you read this as to how long I've enjoyed a successful relationship with the unit.
UPDATE: April, 2012 and still going strong.
UPDATE: January, 2015 and still no complaints -pr