Fixed Adjustable Nut is a 4-position plate for using the Portage Dropout system for chainstay length adjustment, but not single speed use.
Allows adjustments without using Set Screws, and gives a more durable attachment than nuts used for sliding mode.
FAN nuts work with both Classic and UDH Adjustable dropouts. FAN nuts are now standard on all Esker product delivered after mid-2022. Dropout plates are sold without hardware, make sure to add these in when ordering adjustable plates.
For more details on how these different positions affect your chainstay length and tire clearance, see the 'Portage Dropouts' section on our FAQ page.