Profex Puncture Resistant Road Tyre

Product Information

With gear reduction, the difference is that the motion is rotational (angular) which means that the distance (d) can continue indefinitely around in a circle as if there is no floor in the image below, and Input distance continues to drive a shorter Output distance with greater Force. The StinGR utilizes a synchronous or timing belt drive system, where we have a small pinion gear on a shaft that is rotating at a very high speed. It is connected to a large main gear with a drive belt. The distance in our Work equation for the Input side is represented by the high revolutions per minute (RPM) of the smaller pinion gear. The distance of the Output side is represented by the low RPM of the bigger main gear. So with the first law of thermodynamics intact because Energy and Work are the same on both the Input and Output side, we can see how the Force must be increased on the Output side for this to happen. In practical terms, the magnitude of Force is enhanced with distance. This translates to 15% more flight time with the same power and same battery capacity, or more power at the same flight time with the same capacity. As it turns out, Work is also defined as the product of Force times distance. If we think about this, what we are really saying is that:

For this specific topic about the advantage of gear reduction, there are some concepts that need to be defined first. A tyre size conversion calculator or tyre diameter calculator are the best ways to get the answers you are looking for. What sets us apart is our tyre suggestion guide. For each tyre size you input our tyre calculator suggests multiple tyre sizes that are with in one inch bigger and smaller of the entered tyre size. Making it as simple as possible to find the tyre that is just right for you. The type of tools that help us do this provide something we call mechanical advantage. They are tools like levers, pulleys, and gear reducers. They are applied in common tools that enhance strength, like wrenches, hammers, scissors, golf clubs, hand cranks, pliers, bicycle gears, car transmission, etc. To develop the same 6141 Watts-out with the StinGR and the 28x13 C2E that we saw with the Q100 motor spinning the 28x12 PJN, we had to lower the Kv of the motor to 485K and the voltage to 43.29v. Same RPM and Different Propeller: At the same RPM as the Q100 spun the 28x12, the StinGR with the 28x13 C2E draws 18.80% less current, develops an 8.4% higher pitch speed and 6.56% more power at the shaft.

The numbers and sizes of bicycle tires

The answer to this question is where Force comes in. Force represents mass in motion and is the product of mass times acceleration. So, for Force to be a value greater than zero, it must have motion. On the Output side, Work is the resulting Force applied to the object mass times the shorter distance the edge of the lever arm moves upward. Table of bicycle tire sizes. The table allows you to convert between ETRTO, English-, French-and German targets, and rim circumference etc. ETRTO Same Current: At the same current as the Q100 spun the 28x12 to WOT, the StinGR with the 28x13 C2E develops a 14.89% higher pitch speed while developing 27.21% more power at the shaft. The initial two-digit number is the tyre section and roughly indicates the tyre width. Its actual width is normally less, but varies according to how the tyre is designed and the width of rim to which it is fitted. But the height of the tyre usually corresponds quite closely to tyre section, so overall diameter approximately equals the bead diameter plus twice the section.

Sames Watts-out: At the same 6141 Wo as the Q100 needed to spin the 28x12 to WOT, the StinGR with the 28x13 C2E develops a 6.23% higher pitch speed while drawing 21.38% less current. How do you know what size tyres will fit your bike? It should be easy: buy exactly the same model of tyre as those already on the bike. Of course, this isn’t much help if identical tyres aren’t readily available, if you fancy something different or if you’re looking for replacements in unusual and hard-to-find sizes. One way to define it, popular in times past, was to measure the tyre’s outside diameter and its maximum width when inflated, but this can be misleading. For example, some tyres marked 28" are actually much less than 27 inches in diameter, while 26×1.5 and 26×1½ are two completely different sizes.The StinGR 120 can develop the power equivalent of a 120cc 2-stroke engine, spinning a 28x13 C2E propeller to the threshold of tip speed efficiency at only 188A with a 12S battery configuration and the non-geared motor power equivalent of 9.8 kW -- more than 11.3 HP at the shaft. In addition to the various international tire sizes are also available ETRTO list (European Tyre and Rim Organisation). It is precisely this list and these numbers say nothing about the diameter and width of your bicycle wheel, as described previously. There is no industry-wide convention for tubeless tyre fitment and satisfactory results are mostly likely using parts made for use together such as Mavic’s UTS (Universal Tubeless System) tyres and rims. Nevertheless, tubeless-compatible tyres are generally available in the standard 29"/700C/622mmISO, 27.5"/650B/585mmISO and 26"/559mmISO formats. It is inadvisable to use non-tubeless tyres without an inner tube as there is a risk of tyre blow-off. Tubular tyres This thread's intent is to illustrate and explain the benefits that a StinGR gear reduction unit provides the electric RC aviation community.

The answer lies in the definition of the terms above, and if we look closely at the image below, we will see the specific things that changes Force without changing Energy or Work. To achieve 5795 RPM on the StinGR, we changed the 18T pinion to 16T and raised the voltage to 44.668v. For Work and Energy to be equal on both sides, the upward Force applied on the Output side must be twice the amount on the Input side because of the difference in the distance.Additionally, I have written at length about the clear advantage that the new C2E carbon fiber propellers that Falcon Hobby manufactures in the 'Power Systems for Extreme Flight Fanatics' thread here on RCG. The performance efficiency of these propellers can add as much as 11.2% more efficiency to the StinGR power system, bringing the total net efficiency to between 22%% and 25% compared to non-geared outrunnner of similar mass using other types and brands of propellers. The StinGR 150 can develop the same power at the shaft as any 150cc 2-stroke gas engine, spinning a 30x12 C2E propeller to the threshold of tip speed efficiency at only 214A with a simple 12S battery configuration and the non-geared motor power equivalent of 11.2 kW. This is more than 13 HP at the shaft. If you are unsure of your bicycle tire size, you can look into a bicycle tire table where you can easily and simply find just the tires that fit your bike. Most lists the tire size both English, French and German targets and rim circumference in millimeters. This means that you can easily find the right tire size, although it is a Danish number. On the other hand it increases the stress on the sidewall of the tyre. Mountain bike tyres are designed to take this extra stress but road tyres are not. All tyres are marked with a pressure. Sometimes this is an absolute maximum that nobody should need to exceed, or sometimes only a recommended maximum that may be exceeded by heavier riders (such as tandemists).