TA E-One4 Arm Narrow/Wide 104PCD Bicycle Cycle Bike Chainrings Black - 36T

Specifically designed for e-Bike systems with 104mm BCD 4-arm spider mounts. Compatible with Bosch Gen 3, Shimano E-STEP 7000/8000/EP8, Brose, and Yamaha motors Features Specialités TA’s “ONE” concept with alternating narrow and wide teeth, ensuring secure chain retention without the need for a chain guide-even in extreme riding conditions CNC-machined from aerospace-grade aluminium for exceptional strength, low weight, and long-term durability under high torque loads Designed for single-chainring drivetrains, simplifying the transmission and reducing weight while maintaining reliable performance