SMC/RA 4"x5/8" Heavy-Duty Double Ball Pulley for Rescue & Industrial Use Drivetrain Speeds_2x8 Speed Designed specifically for Shimano 12-Speed

Designed specifically for Shimano 12-Speed mountain bike derailleurs

Easy to install with a 1-inch diameter compatible with most cruiser bikes

The lightweight design (approximately 750 grams per pair) minimizes weight without sacrificing strength or coverage

Optimize your bike's shifting performance with the Sunrace MZ33N Trigger Shifter DLMZ33N Right 12-Speed - built to deliver reliable

Ideal for riders seeking quick

SMC/RA 4"x5/8" Heavy-Duty Double Ball Pulley for Rescue & Industrial Use Drivetrain Speeds_2x8 Speed Designed specifically for Shimano 12-SpeedElevate your rescue and industrial applications with the SMC RA 4" x 5 8" Double Ball Pulley, a trusted solution built for demanding environments. Designed by renowned manufacturer Russ Anderson SMC, these pulleys are engineered for peak performance, durability, and reliability in fire, rescue, and heavy duty work settings. Materials & Construction: Constructed with high quality aluminum side plates (available options) and stainless steel versions,