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 the Saints secured maximum points from their opening two Investec Champions Cup games with an eight-try thrashing of the Bulls.
Ollie Sleightholme crossed twice and Henry Pollock secured the bonus point try before the hour mark as a commanding Northampton side ran riot in the second half.
The visitors were within touching distance with the score 14-5 at the break but a sin-binning to forward Tshakweni in the 53rd minute for a needless trip proved very costly and they failed to register a point in the final forty minutes.
International Smith contributed 10 points from the tee as Saints went top of their pool on superior points difference from defending champions Bordeaux with both sides on 10 points.
The manner of this victory, coming after a 35-27 victory on the road at Section Paloise previously, means last season's runners-up Northampton could not have asked for a better start as they aim to go one better this season.
Pretoria's number ten Wolhuter missed an early penalty before the hosts took the lead when Henry Pollock broke before passing to Sleightholme who demonstrated his speed to race clear to the try line.
But an mistake from the winger let the Bulls back in as the ball slipped from his grasp in contact, allowing Bulls wing Stravino Jacobs to kick on and show electric speed of his own to score after 22 minutes.
Shortly after, Saints had their second as fast passing from Mitchell at the base of a ruck and then Smith sent Hendy over to make it 14-5 at the half-time whistle.
Saints were on top in possession and territory and were being given a helping hand from the opposition fly-half Kade Wolhuter who twice missed touch with penalty kicks to reinvite pressure onto the visitors.
That proved decisive after 48 minutes when Fin Smith was again the creator, stepping inside to deceive the onrushing defense before sending a sweet left-footed kick over the line for George Hendy to collect his second try and Saints' third score.
Bulls prop Tshakweni was then sin-binned for a tripping offense on Iyogun. The prop was insistent he had been responding to a trip momentarily before by Iyogun but the incident from the Saints replacement prop was ruled unintentional when looked at by the match officials.
Saints seized the opportunity of having the numerical advantage to clinch the try bonus point through Henry Pollock before Coles and Ollie Sleightholme scored as the home team registered three scores in five minutes.
George Hendy wrapped up his hat-trick with 12 minutes remaining and Kemeny walked over for the eighth and final try of an excellent afternoon for Saints in the final minute.
The top two teams in the pool meet in a rematch of the previous season's final when the tournament returns in the new year as Saints travel to Bordeaux. Northampton then conclude the group phase with a home game against the Scarlets on 18 January.
The Pretoria Bulls, who have one point from two matches, host Bristol in their next outing before traveling to face 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)
Loopbaancoach en psycholoog met 15 jaar ervaring in carrièrebegeleiding.