These chain rings come in versions with 14, 15, 16, 17, 18, 19, 20, 21, and 22 teeth. If your e - bike has a chain ring with only 15 or 16 teeth, it's smart to buy multiple chain rings with more teeth. The big plus is that you won't have to pedal as fast at high speeds on tuned electric bikes. You can pick a chain ring that suits your riding style and bike perfectly. Note: If you plan to change your chain ring, you'll need the Bosch Spider for Gen2 (Bosch Active / Performance) and an ISIS crank puller. If you already have a suitable crank puller, you only need the Bosch Spider for Gen2.

Using this Bosch chain ring is easy. First, make sure you have the right tools - the Bosch Spider for Gen2 and an ISIS crank puller if you're changing the chain ring. Pick a chain ring with the number of teeth that matches your riding needs. If you often ride at high speeds, a chain ring with more teeth will save you from pedaling too fast. When it comes to maintenance, keep your chain ring clean. Regularly wipe it down to remove dirt and grime. Check for any signs of wear and tear, like chipped teeth, and replace it if necessary. Also, ensure the chain ring is tightly fastened to avoid any wobbling while riding.