Twenty-six cyclists yesterday pedaled off on a 400-mile ride from Newtown, Conn., to Washington to demand tougher gun laws.

Two of the riders had kids at Sandy Hook Elementary.

The cyclists — one for each victim of December’s massacre at the school — expect to arrive at the Capitol on Tuesday.

This “inspiring rolling rally [is] to tell Congress: Stop gun violence,” said Sen. Richard Blumenthal (D-Conn.).