The e*thirteen e*spec Race Carbon Crank Arm Set is tailor - made for Bosch Gen 4 eBike motors. These carbon crank arms feature a slim Q - factor and a more compact profile, with e*thirteen's reliable crank technology leading the way. It comes in a sleek black color and has a length of 165mm. Key features include an 8mm self - extractor bolt built into both arms for easy removal, World - Cup DH - rated layup and construction, and compacted carbon fiber with an extra 3k added to the front and rear faces for better impact resistance. Technical specs: Weight is 328, pedal spindle is 9/16', spindle interface type is ISIS, and it's designed for ebikes.

Using your e*thirteen e*spec Race Carbon Crank Arm Set is straightforward. First, make sure it's properly installed on your Bosch Gen 4 eBike motor. The 8mm self - extractor bolt makes removal easy when you need to clean or replace the crank arms. When riding, enjoy the smooth performance provided by the slim Q - factor and compact profile. As for maintenance, keep the crank arms clean by wiping them down after each ride. Avoid hitting the crank arms against hard objects to protect the compacted carbon fiber. If you notice any signs of damage, like cracks or chips, it's best to have them checked by a professional. Also, regularly check the tightness of the bolts to ensure safety.