Investec Champions Cup Pool Four
Northampton Saints (14) 50
Tries: Sleightholme 2, Hendy 3, Pollock, Coles, Kemeny Cons: Smith 5
Pretoria Bulls (5) 5
Tries: Jacobs
George Hendy bagged a triple as Northampton made it maximum points from their first two Investec Champions Cup games with an eight-try hammering of the Bulls.
Sleightholme crossed twice and Pollock scored the bonus point try before the hour mark as a commanding Northampton side ran riot in the latter period.
The visitors were still in the game with the score 14-5 at the interval but a sin-binning to prop Tshakweni in the 53rd minute for a needless trip proved very costly and they failed to register a point in the second half.
England fly-half Fin Smith contributed 10 points with the boot as Saints moved to the summit of their pool on points difference from defending champions Bordeaux with the two teams on 10 points.
The manner of this win, coming after a 35-27 victory on the road at Pau last week, means last year's losing finalists Northampton could not have hoped for a more ideal beginning as they aim to improve on that in this campaign.
Pretoria's number ten Kade Wolhuter failed with an early shot at goal before Saints took the lead when Pollock made a break before feeding Ollie Sleightholme who showed his pace to race clear to the line.
But an mistake from Sleightholme allowed the Bulls back into the game as the ball slipped from his grasp in the tackle, allowing Pretoria winger Jacobs to kick on and show electric speed of his own to score after 22 minutes.
Ten minutes later, Northampton had their second try as fast passing from Alex Mitchell at the base of a ruck and then Fin Smith put Hendy over in the corner to make it 14-5 at the break.
Northampton were on top in possession and territory and were being given a helping hand from the opposition fly-half Kade Wolhuter who failed to find touch with clearing penalties to reinvite pressure onto the visitors.
That told after 48 minutes when Smith was again the architect, stepping inside to wrong-foot the onrushing defense before sending a perfectly weighted left-footed kick over the line for George Hendy to collect his second try and Northampton's third.
Pretoria forward Alulutho Tshakweni was then shown a yellow card for a trip on Iyogun. The prop was insistent he had been responding to a trip momentarily before by Iyogun but the contact from the Saints replacement prop was ruled unintentional when looked at by the match officials.
Northampton seized the opportunity of having the extra man to secure the bonus point through Pollock before Alex Coles and Sleightholme crossed as the home team registered three tries in five frantic minutes.
Hendy wrapped up his hat-trick with 12 minutes remaining and Josh Kemeny strolled in for the eighth try of an outstanding afternoon for Saints in the final minute.
The top two teams in the pool meet in a rerun of last year's final when the tournament returns in the new year as Northampton head to Bordeaux-Bègles. The Saints then round off the pool stage with a home game against Scarlets on January 18th.
The Bulls, who have a single point from their opening two games, welcome Bristol Bears in their next outing before traveling to Pau.
Northampton: Furbank; Sleightholme, Hutchinson, Dingwall, Hendy; F Smith, Mitchell; Fischetti, Wright, Davison, Coles, Van der Mescht, Kemeny, Pearson, Pollock
Replacements: R Smith, Iyogun, Kundiona, Munga, Prowse, Graham, James, Thame
Bulls: Williams; Petersen, Gans, Vorster, Jacobs; Wolhuter, Burger; Tshakweni, Van der Merwe, Smith, Wiese, Van Heerden, Coetzee, Ludwig, Louw
Replacements: Else, Sithole, Mchunu, Gumede, Carr, Papier, Johannes, Van Niekerk
Yellow card: Tshakweni (53)
Referee: Hollie Davidson (Sco)
Assistant referees: Rob McDowell (Sco) and Dave Sutherland (Sco)
TMO: Mike Adamson (Sco)