Optional for Serpent Viper 977
Hard anodized CNC machined topquality aluminum pullies.
Very durable pullies, which stay cleaner, are supertrue, have holes in sides to let debris move out easier and make the belts run supersmooth.
Lightweight alu adaptors to match, to reduce overall and rotating mass.
903590 Pulley 2-sp axle 19T alu
903591 Pulley 2-sp axle 21T alu
903592 Pulley middle axle 25T alu
903593 Pulley middle axle 18T alu
903594 Pulley front axle 28T alu
903595 Pulley rear axle 48T
903596 Pulley adaptor 21T light
903597 Pulley adaptor 19T light