As practical heatshrink tubing for general use on e-bikes RNF-100 heatshrink tubing with a shrink rate of 2:1 has shown excellent results and is available in several diameters with a piece length of 200 mm, or approximately 8 inches.
The plain heatshrink tubing ET-SS-16 has a inner diameter of D = 1.6 mm before and d = 0.8 mm after shrinking.
