FSA Bosch BDU31 Armset 170mm ISIS CheckoutSpec= 25mm Rise What sets Vivid apart from

What sets Vivid apart from a coil spring is the highly tunable air spring featuring DebonAir technology containing higher volume to provide a more linear consistent feel and improve small bump sensitivity

And if you have several bikes its modular design supports add–ons

Any air that gets into the fluid chamber is automatically purged with every up/down motion which means it never sags so there is no need for manual reset or purchase of new cartridges

Designed for on the bike comfort the ergonomic preformed shape ensures a perfect fit while the integrated tech thread allows you to stay connected on the go

Made with a series of recycled materials this upper features at least 50% recycled content

FSA Bosch BDU31 Armset 170mm ISIS CheckoutSpec= 25mm Rise What sets Vivid apart fromFSA ISIS eBike replacement crankarms.