These brand new bare steel Triumph drag pipes are 1.75″ OD throughout and feature a front mounting tab. These are ‘upswept’ drag pipes as they have a slight bend in bottom run towards the rear of the pipe. It actually makes these pipes flow quite well with a hardtailed Triumph. These pipes will slip right over your exhaust spigots and look great. Fits both pre unit and unit Triumph 650cc motorcycles. Why mess with old beat up exhaust pipes on your Triumph bobber or chopper? These are not some cheapo ones, they are made in England! These bare steel pipes are a great option if you are looking to cut and modify your pipes and then either chrome, high temp paint, or ceramic coat them.