SRAM 1x Ebike Crank Spider - 107BCD Single Ring Bosch Gen 4 Black Regular price $60.00 Quantity - + Fast Free Shipping Over $100 Expected Ship Date: Mon 01 December 3% Cashback As Store Credit Buy now 0 Details SRAM Ebike Crank Spider - 107BCD Bosch Gen 4 Black. SRAM Spiders for Bosch Ebike motors. TECH SPECS Chainring BCD 107 Color Black Defined Color Black Defined Color List Black Designed for ebike Yes