original: The race culminates with 750m on the smooth concrete of the large outdoor velodrome in Roubaix.
simplifications: The race ends with 750m on the smooth concrete of the large outdoor velodrome in Roubaix. The race is made of 750m of smooth concrete on the large outdoor velodrome in Roubaix. The race peaks with 750m on the smooth concrete of the velodrome in Roubaix. The race ends with 750m on the smooth concrete of the large outdoor velodrome in Roubaix. The race ends with 750m on the smooth concrete of the big outside velodrome in Roubaix. The race ends with a 750 meter stretch in an outdoor cycling arena in Roubaix. The race finishes with 750m on the smooth concrete surface of the velodrome in Roubaix. The race ends with 750m on smooth concrete in Roubaix. The race ends in Roubaix, running 750 m on a smooth, concrete outdoor cycle track with slanted sides. The highest point of the race is at 750m on the smooth concrete of the large outdoor arena for track cycling in Roubaix.