(09 Sep 2014, 7:35 pm)Kuyoyo wrote 7501-9 would be very hard to get under the Cornmill Centre Bridge in Darlington Town Centre - marked 14ft 6ins as you enter, and reduces to 14ft 3ins at the top end, 7501-9 are 14ft 6ins.
There's a bit of a safety margin built in there. Bishop used to put 7272/7275 under there no problem and they were 14'6"