A reshuffled back division masterminded a big victory for leaders Leeds Tykes.
Tynedale scored first through Seamus Hutton but the Tykes responded with a Will Hardwick try converted by Callum irvine.
As the interval approached, Ben Dixon put the leaders in front, a lead they would never relinquish. Irvine was on target with the extras.

Chasing the bonus point, the Tykes came out revitalised. Eddie Brown crashed over as Leeds; driving maul went 22m from a lineout. Irvine converted from the touchline.
The energetic Hardwick threw an audacious dummy before releasing the on-rushing Henry MacNab to seal the try bonus.
Utility back Charlie Venables got in on the act after Adam Brown laid a platform with his barnstorming run. Irvine converted with ease.

Tynedale hooker Ralph Johnston went over for a consolation on the hour mark, with the conversion struck sweetly into the wind by Jake Rodgers.
Venables completed a brace before MacNab scored twice to complete his hat-trick. And the pacey Ben Turpin then touched down having been instrumental in several other scores. All four tries were unconverted.