Optimised for the street.
Machined from billet aluminum.
Sold as a kit.
As we waited for parts during the upgrade and refresh to the S85-002, I decided to test an unoften discussed "free" upgrade.
Some say underdrive pulleys make a difference, others say they didn't feel a thing.
As part of my Special Series on the S85-002, I'll chat on the underdrive pulley theory, the kit I picked and my impressions.
- Matt / @m3_epoustouflant
Been there, done that.