Well, there we were, Tim and I, just riding along in the middle of Carrizo Plain minding our own damn bidness. All of a sudden my rear tube blew up. While we were fixing my flat the nail in his rear tire pretty much let all of the air out.
Continuing with the theme of "Great minds screw up stuff alike", my pump got my rear tire up to 38psi and popped the bead on and then went "Wheeee!" making a lot of noise but putting out no air. Tim's pump got his rear tire up to the high 20s and then sort of ran out of steam and went "Errrrg".
Tim's pump is the slim Slime, while mine is the more portly Slime 40019.
I've had mine for several years and have used it a whole bunch and abused it a whole bunch. I've also taken pretty good care of it by periodically disassembling it for a good cleaning and lubrication. A post-mortem revealed that the hose had simply popped off the barb from being hard and dried out and that the case was pretty well shot and needs to be held together with zip ties now. Easy fix; it's now retired to the trunk of the Forester.
We both felt that something better in the way of a pump should be a part of our kit and the first thing we thought of was the CyclePump. They've made loads of them, the thing has been used around the world and nobody says they are horrible.
The price is a bit high, but I've spilled more beer than that at Mark's techdays and it seemed like cheap tuition so I bought one. First, though, I looked around for a comprehensive review and all I could find was reviews that said it was bitchin' and it pumped up tires pretty good and it was nice and slim and it came in a nice pouch and it seems rully, rully, like, cool. Nobody took one apart and poked at it. I've voided whatever warranty I might have had by drilling out the rivets that hold the case together and completely disassembling it. What follows is my review and, of course, is my opinion only. That and a buck seventy five will get you a Vente at Starbucks.
Here's what comes in the package:
The pouch is big and well-made and will hold extra stuff. The wiring covers SAE connector, Powerlet plug, cigarette plug, and direct to battery. All very well done. The pump itself is in a pretty tough aluminum case with some wee legs on it and a long Velcro strap to hang the thing from something so it doesn't have to sit in the dirt.
The hose chuck is a thing of beauty:
It attaches easily to the stem and grips the stem solidly:
Unfortunately, the clamp on mine was improperly installed and there is a leak between the hose and the chuck. On a spendy unit stuff like this shouldn't happen and I'm not too pleased or impressed. It won't be hard to fix, but I shouldn't have to.
After drilling out the pop-rivets the cover came off easily:
The compressor is a pretty standard unit and is very similar to the compressor in the Slime as we'll see in a bit. Right off I noticed the rubber bit between the motor and case. It seems to be both a seal and a bit of a shock absorber. It covers a fitting that the motor's shaft runs in and is packed with grease. The bottom of the case is smeared with grease which should trap most of any dirt, dust or grit that gets inside the case. The wiring is pretty adequate. The switch looks pretty solid, though it's a Chinese switch.
The compressor is (and if I do say so, I'm a bit of a connoisseur of these things) what I consider to be a good one. I'll show you a crap one later.
The crankshaft has flats milled on it and the large gear fits on those flats and is held in place with a C-clip, while the head bolts have standard threads going into tapped bosses.
This is what a crap compressor looks like:
The big gear is pressed onto the end of the shaft and the head bolts are self-tapping into the bosses. This makes it almost impossible to disassemble for cleaning and lubing more than once. All the inflator compressors are made in China, but some are much better than others. This unit is truly a throw-away, while the units in the Slime and CyclePump are both serviceable. The crap pump has other shortcomings in construction and quality.
...to be continued...