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 scored a hat-trick as the Saints secured maximum points from their opening two Investec Champions Cup games with an eight-try thrashing of Pretoria.
Ollie Sleightholme scored two tries and Henry Pollock secured the bonus point try inside an hour as a commanding Northampton side cut loose in the latter period.
The visitors were within touching distance with the score 14-5 at the interval but a sin-binning to forward Tshakweni in the 53rd minute for a unnecessary trip proved very costly and they failed to register a point in the second half.
England fly-half Smith contributed 10 points from the tee as Northampton moved to the summit of Pool Four on points difference from holders Bordeaux with both sides on 10 points.
The manner of this win, following a 35-27 away win at Pau last week, means last year's losing finalists Saints could not have asked for a more ideal beginning as they aim to go one better in this campaign.
Bulls fly-half Wolhuter missed an early shot at goal before Saints took the lead when Henry Pollock broke before feeding Sleightholme who demonstrated his speed to sprint away 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 Bulls wing Jacobs to kick on and show electric speed of his own to score after 22 minutes.
Shortly after, Saints had their second as quick hands from Alex Mitchell at the ruck base and then Smith sent George Hendy over to make it fourteen to five at the break.
Northampton were on top in both ball and field position and were being aided from Bulls fly-half Wolhuter who twice missed touch with penalty kicks to bring the pressure back on the away side.
That told after 48 minutes when Fin Smith was again the creator, stepping inside to wrong-foot the onrushing defense before sending a sweet grubber kick over the line for Hendy to collect his second and Northampton's third.
Pretoria forward Alulutho Tshakweni was then sin-binned for a trip on Iyogun. Tshakweni was adamant he had been reacting to a trip just prior by the Saints player but the contact from the Northampton substitute was ruled accidental when looked at by the officials.
Northampton seized the opportunity of having the extra man to secure the try bonus point through Pollock before Alex Coles and Sleightholme crossed as the hosts registered three tries in five frantic minutes.
George Hendy wrapped up his hat-trick with twelve minutes left on the clock and Kemeny walked over for the eighth and final try of an outstanding afternoon for Northampton in the final minute.
The top two teams in the pool meet in a rematch of last year's final when the Investec Champions Cup resumes in the new year as Northampton head to Bordeaux-Bègles. The Saints then round off the group phase with a home game against the Scarlets on January 18th.
The Bulls, who have a single point from their opening two games, welcome Bristol in their next outing before an away trip 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)