Track Bicycle Gear Ratio

The first method is to relate the gear ratio to wheel size by multiplying the gear ratio by the diameter of the wheel figure 1a.

Track bicycle gear ratio. Gearing plays a significant role in race and training performance and it s every track cyclist s goal to try and pick the optimum gear to match their physiology and pedalling ability across different types of races. The vast majority of chainrings sprockets are 1 8th in gauge thickness as this is the industry standard size for track cycling however it could still be the case that you have a 3 32. If you re using a schlumpf drive plus an internal gear rear hub you should enter the actual number of teeth of the front chainring for the first chainring and this number of teeth times the schlumpf ratio for the second chainring. On the track through the years a regular trackie will amass quite a collection of chainrings and cogs as interchanging these parts is the only way to change gearing on a single speed bike.

1 8 inch 3 18 mm and 3 32 inch 2 38 mm. Bicycle chains used in track fixed gear and single speed cycling come in two common roller widths the internal width between the inner plates. The shorter 165mm crank length encourages a greater pedaling efficiency as your pedaling cadence rpm revolutions per minute will be higher. How to choose the right gear ratios for your road bike gear ratios can make or break your ride so choosing the right ones for you is vital to getting the most out of cycling.

The ratios are 0 40 for the mountain drive 1 65 for the speed drive and 2 50 for the high speed drive. The chainring sprocket and chain should all be the same width. Traditionally track racers have worked with approximately an 88 gear 49t x 15t for all purpose racing. I ll calculate the best chainring cog combinations and skid patches for your speed and cadence and what your speed will be at various cadences.

Despite various leg lengths for different heights track cyclists commonly stick to 165mm or 170mm crank lengths.