| | |  |  Pumps | Home » » » » Topeak Mini G MasterBlaster Bike Pump with Gauge | | | | | | | Description: | | Compact dual-action pump with inline gauge. 120psi. Thumb lock pump head ensures airtight seal. Converts quickly between Presta and Schraeder valves. | | | Features: | |
• 158 g / 0.35 lb
• 140 psi/ 9.6 bar
• Presta/Schrader
• Dual Action Pumping
• Aluminum Barrel, Plastic Thumb Lock
| | | Product Details: | | | Product Length:
| 14.0 inches | | Product Width:
| 3.25 inches | | Product Height:
| 2.5 inches | | Product Weight:
| 1.3 pounds | | Package Length:
| 13.8 inches | | Package Width:
| 3.5 inches | | Package Height:
| 1.4 inches | | Package Weight:
| 0.55 pounds | | Average Customer Rating:
|  based on 88 reviews |
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| | Customer Reviews: | |
Average Customer Review:
 ( 88 customer reviews )
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Most Helpful Customer Reviews
44 of 46 found the following review helpful:
 Good pump, bad gaugeJul 18, 2007
By P. Kabata
"PK"
I had a chance to use the pump for the first time the other day when I caught a flat. I was able to pump the air back in with a decent amount of ease, but noticed that the preasure gauge was not working. The gauge looks a bit delicate so it could have broke or just come like that. I'm dissapointed since this is specifically why I bought the pump so I could inflate my tires to the right psi. Other than that, it's a good pump. The mounting bracket works well on my lower bar and doesn't interfere with pedaling. Good luck with your pump.
35 of 38 found the following review helpful:
Great little pumpJan 11, 2007
By M. Ruina
"shaydini"
As a big-time sports family, we constantly carry a pump with us to ensure the soccer ball, football, basketball, etc., are always ready for action. My husband has been saying how much he would love to find a mini pump with a gauge so he could properly inflate the balls. We searched for ages until I finally came upon this and bought it. Although it's a wonderful little pump, the gauge is specifically designed for tires rather than balls. The increments on it are too wide to determine smaller numbers. It still works, but does not show the lbs. for ball inflation. That said, it's fabulous for use on our bikes and I'm still very happy I bought it.
24 of 25 found the following review helpful:
 Decent PumpAug 26, 2008
By W. Huber
I purchased this pump to attach to my bike for emergencies on long rides, which I was able to do with no problems using the included clip. It takes a LOT of muscle to get it up to the 120 PSI required for my road bike, but bikes that require lower pressures aren't that difficult, and it's better than nothing if you're stranded somewhere with a flat. My only complaint is that it is a little tricky getting the pump attached to a valve stem without losing any air.
13 of 13 found the following review helpful:
Works well but takes work for high pressure.Aug 15, 2008
By C. Badham
I picked up this pump because I was in a jam and needed a frame mount pump on short notice. I would have preferred the Road Morph and I ended up paying Road Morph price for this little thing. But alas.....
I've used it twice now on my commute. Once on my rear when I noticed I had a slow leak when I got to the office and once on the road when my buddy's tire took a goat head. The pump has worked great and the gauge works just fine. I can't verify the accuracy of the gauge, but ballpark is good enough for me. The dual pump action is a nice touch, but the result is after about 60 psi it takes more effort to push and pull the handle. After about 80 psi, I resort to using my whole body weight to push the handle in until I get up to 110 - 120 range. I only weight 130, so it definitely takes using my body and not just arm strength.
The switchable thing inside the head is pretty standard for little pumps, but I try to leave my mine setup for Presta. Another option for Presta users is Presta/Schrader adapters. In fact, it's smart to have some of those on hand as most gas station hoses are setup for Schrader.
I also carry around a little Schrader hose when I'm on the mtb and that gives some room for pumping on the trail when the ground might not be even.
Overall, the pump has done what it's supposed to do and done it well given its size.
Even if you don't get this pump, get a quality pump and not the crap they sell at x-mart. Those x-mart pumps can maybe do 40 psi if you get the "nice" one. That's enough for balls, kids bikes, and enough to limp a mtb home but isn't enough to even limp by on high pressure road tires.
The Road Morph and Mountain Morph are better and only a few dollars more. I would spend the extra money for either of those. The caveat being those are longer pumps. So if you need something smaller, the Mini Blaster G will suffice but will require some effort at higher psi.
11 of 11 found the following review helpful:
 For anyone with a Presta valve...Jun 06, 2011
By Dean B. Barrett
"db"
Maybe I am just dense but it was not immediately apparent how to switch this over from a schrader (regular) valve to the smaller presta valve fitting. Bought this for my first road bike so this is my first time dealing with a presta valve. To convert the pump to presta, unscrew the grey lid/cap from the pump. On mine it was hard to see/remove but there is a black rubber insert inside the black plastic. Mine was so snug I needed a very small screwdriver to pry the rubber plug up. You then reverse the green plastic piece to be pointing inward and fit the rubber plug accordingly.
P.S. Test it in your garage before hitting the road!
See all 88 customer reviews on Amazon.com
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