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Topeak Mountain TT Twin Turbo Mini pump - Equipment
What a great piece of kit: After the shrunken floor pump, the Topeak Lezyne Micro Floor Drive XL the most voluminous of the 11 mini pumps in the test. Nevertheless, a frame bracket is also included in the scope of delivery. This secures the grip sleeve and cylinder at the same time, which effectively prevents rattling while riding.
The pump head is secured to the valve by a clamping lever and is protected from dirt by a dust cap. The Mountain TT can be used with all types of valves, but screwing them on is a little more complicated than with many other models.
Handling / processing
We noticed one thing straight away when mounting the bracket: With its strongly curved shape, it does not fit all tube shapes. Voluminous and angular down tubes are particularly problematic. Otherwise, however, the grip sleeve and cylinder are held securely in place. As you would expect from Topeak, the mini pump is neatly finished and has very little play between the piston and cylinder. Only the clamping lever is a little sharp-edged. Converting from Presta to Schrader valves is awkward because the seal is difficult to remove from the pump head.
To ensure that the pump sits securely on the valve, it must be pressed on firmly, otherwise it will quickly come off during pumping. It is not easy to tighten the clamping lever, which is close to the handle. Small hands in particular may have problems with the large diameter of the Topeak. But even with large hands, the thickening at the end of the handle presses into the palm of the hand. The grip sleeve is pleasantly large and the risk of pinching is low. However, you do bump into the angular clamping lever with your hand when pumping. Overall, the pumping experience with the Topeak Mountain TT is not entirely convincing.
Pumping capacity / manual force
Inside, the Topeak works according to its very own principle: air is sucked into the cylinder when the tyre is pulled, which creates a lot of volume. The air is then pressed into the tyre at high pressure. In practice, this ensures that the tyre is inflated quickly and with surprisingly little manual force - at least with Presta valves. On various Schrader valves, we had to pump much harder to get the air into the tyre.
Are you looking for a floor pump for the workshop rather than a mini pump for travelling? Read our last detailed test of 10 floor pumps.
Topeak Mountain TT Twin Turbo mini pump - Info & Price
- Price: 34,95 Euro >> available here
- Weight (pump / bracket): 193 g / 19 g
- Length / diameter: 220 mm / 38 mm
- Valve type: Presta / Schrader
- Equipment: Dust cap; clamping lever; frame holder
- Pump strokes per bar / pressure max: 86 / 4 bar
Conclusion & evaluation
Thanks to its special design, the Topeak pushes a lot of air into the tyre with little resistance - this saves a little strength and time. Small hands have difficulty gripping the massive pump, while large hands bump into the angular clamping lever. Switching between valve types is awkward. If the Mountain TT does not fit perfectly, it can come loose from the valve when pumping. Almost too bulky for frame mounting.
Click here to go back to our overview article: 11 mini pumps in the test. There you will find all the important information on the subject as well as the remaining 10 models in the test field.
* Note: Weight, size and pump strokes per bar are BIKE measurements. We measured the pump strokes per bar with a precision manometer on the volume corresponding to a 29x2.35 inch tyre. The maximum pressure is a manufacturer's specification.
Stefan Frey
Editor
