Leinster ran in 13 tries in their biggest ever European victory with a 89-7 win over Montpellier at the RDS today.

Six first half tries courtesy of Jack Conan, Jamison Gibson Park, Ross Byrne, Ross Molony, Michael Ala’alatoa and Jordan Larmour gave Leo Cullen’s side their first half bonus point.

Tries from James Lowe, Jimmy O’Brien, Jack Conan and second half braces from Dan Sheehan and Josh Van Der Flier capped off an outstanding performance from the four-time champions.

It was a dominant onslaught from Leinster since the first whistle blew. They found their first try of the afternoon courtesy of Jack Conan who finished from close range in the left corner.

Ross Byrne added the extra two points from the tee to give Leo Cullen’s side an early advantage. Just over five minutes later, winger Jimmy O’Brien found himself in space down the hosts’ left wing. O’Brien offloaded to Jamison Gibson Park who scored his side’s second try of the affair after just under ten minutes on the clock.

The hosts didn't ease off the gas following their opening tries and after Montpellier turned the ball over on their five metre line, the Top 14 side opted to clear their lines. Louis Foursans’ clearance was blocked by Rónan Kelleher and the ball rolled into the path of Ross Byrne who dove over the try line to give his side a three try lead after just 15 minutes on the clock.

The Bonus point try came for Leinster after just 23 minutes when Ross Molony powered over the Montpellier line to give the home side a 28-0 lead.

Despite all of Leinster’s good rugby, the hosts did find themselves slightly sloppy in possession of the ball. Montpellier did shock the home crowd when former Leinster academy player, Karl Martin broke free down the right wing before offloading to Joshua Vici. The visitors retained possession and flanker Masivesi Dakuwaqa scored his sides only try of the game.

Michael Ala’ Alatoa replaced the injured Tadgh Furlong inside the first ten minutes of the clash and it was the replacement prop who scored Leinster’s fifth try of the first half. His power and direct running from just metres out proved too much for the French side.

On the cusp of half time Leo Cullen’s men tore Montpellier’s defence apart with some fast, free flowing rugby resulting in Jordan Larmour diving over in the corner to give the hosts a 40-7 lead at the break.

Leinster started the second half in the same form that they ended the first with Josh Van Der Flier and Jimmy O’Brien crossing the line for the hosts in the opening five minutes of the half.

Van Der Flier scored his second try of the game after capitalising on a poor Montpellier lineout on the halfway line. Van Der flier burst through three tackles before diving underneath the posts.

Substitute Dan Sheehan got in on the action just moments after replacing Rónan Kelleher where he scored his sides’ tenth try of the game after linking up with James Lowe down the right wing.

It was the hooker again who stretched Leinster’s advantage just five minutes later before Jack Conan crossed for his second of the game and scored Leinster’s twelfth try of the rout.

Leinster's previous record European win came in a 92-17 win over Bourgoin in the 2004/2005 season but this Leinster side broke this record when James Lowe found his team’s thirteenth try of the afternoon just after the 80^th minute mark.

Leinster face Bath in a must win game next week ahead of the knockout stages.