Check the listing for details. Dia-Compe M7 bicycle brake lever threaded barrel adjuster - RED. Condition: New. Listed at 7.99 USD. Aluminum alloy threaded brake lever barrel adjuster with lock nut How do I know what size I need? These M7 adjusters fit most mid and new school BMX levers with threaded adjusters - but as always, please measure before ordering. The other popular size is M10 which is typically on mountain bike levers and some high end BMX levers. There is a pretty big difference between 10mm and 7mm so getting the right one is easy enough if you measure the diameter of the threaded section of your current adjusters. M6 is a third size, but M6 adjusters are typically used on calipers, not levers. These do fit Dia-Compe Tech 77 levers. For all others, please measure your lever before ordering. * Color: RED ANODIZED w/ black lock thumb ring "nut" * Size: M7 X 1.0 X 18mm * SOLD INDIVIDUALLY