Profile Design - Ergo Armrest Kit Stock Item:PROFILE ERGO INJECTED ARMREST KIT and the RollerBoys from BBB

and the RollerBoys from BBB are made for a smooth ride

Chainline: 51mm - 137mm Spindle

whether you want to go for a Sunday ride or a multi-day tour is up to you

and others) as well as some Campagnolo® crank bolts

Profile Design - Ergo Armrest Kit Stock Item:PROFILE ERGO INJECTED ARMREST KIT and the RollerBoys from BBBPROFILE DESIGN ERGO ARMREST KIT The Ergo is the core of our new family of fit and comfort focused armrests. It offers a smoothly curved shape designed to comfortably cup the elbows while providing good support and control. The bolt pattern yields 48 possible configurations just by moving the armrest. The Ergo is compatible with all current aerobars and earlier models that used the F 19, F 22, F 35 or F 40 armrests. Armrest Construction: Injected Nylon