SLF Motion in Pawnee, Illinois manufactures bicycle parts built for Speed and Durability. Competitive parts that set the industry standard.

Utilizing a 14-Tooth / 18-Tooth pulley wheel combination, the Speed System is unmatched by any competitor on the market when it comes to strength, durability, and performance!

Aug 29, 2019 · Hi! looking for upgrading my bike with some oversized ceramic pulley wheels. What are your thoughts on both Ceramic Speed OSPW (coated version) and de SLF Motion …

Oct 3, 2019 · Thru extensive CFD testing (using ANSYS), SLF Motion tells us that they are the world’s most aerodynamic Oversize rear derailleur pulley wheel system on the market. …

Jan 26, 2018 · Now, SLF Motion is back with a complete pulley system – the Hyper Speed System. Using an oversized CNC machined titanium 16t upper and 17t lower pulley wheel, the …

Improve your current stock drivetrain or even your current competing Oversize System with the installation of an SLF Motion Speed System. Every System is designed, tested, and hand built …

Mar 3, 2021 · SLF Motion offers the Evo Speed in a variety of configurations for Shimano, SRAM, and Campagnolo fitments, and in six different anodized pulley colors. If you’re feeling …

Utilizing a 14-Tooth / 18-Tooth pulley wheel combination, the AERO System is unmatched by any competitor on the market when it comes to strength, durability, performance, and aerodynamics!

Utilizing our unique 14-Tooth/18-Tooth pulley wheel combination, our Oversize Hyper Speed System is designed to provide precise and repeatable shifting along with decreased drivetrain …

Dec 14, 2018 · SLF Motion uses hybrid ceramic bearings (Si3N4 ceramic balls with hardened & coated steel races) that exceed current industry standards in order to reduce friction and …