SRAM X-Sync Steel Direct Mount Chainring - SRAM Direct Mount - 3mm Boost - Round - Grey - 32T YGroup_7033467895853 It is a tool-free bell

It is a tool-free bell that is easy to mount and can be attached quickly to handlebars from 19-32 mm

It combines a smooth modulating pad compound with a cooling finned back plate for consistent powerful braking in all conditions

Saves you money in the long run

Backing plate material: The EXOTherm 2 compound features a finned alloy backing plate

Perfect chain line with built-in offset

SRAM X-Sync Steel Direct Mount Chainring - SRAM Direct Mount - 3mm Boost - Round - Grey - 32T YGroup_7033467895853 It is a tool-free bellGenuine, budget replacement chainrings for SRAM direct mount compatible cranks. By making the chainring from steel, SRAM were able to bring the price of their X Sync technology down to a whole new level. As a bonus, these also last substantially longer than the alumium chainrings, they do weight a bit more though. Works great for 10 or 11 speed.