Couple of THINGS with THOSE PIPES ! Only seen out of dozens of makes , ONE that swept IN at the rear lower frame rail . ALL others were WIDE there .
As its the FIRST PLACE to GROUND , its totally unacceptable . If youre going to go on a race track . Picture illustrates how it wants to fit , HIGHER there
increses LEAN ANGLE also , as per picture . When they used the ' Trigonic ' Race Tyres , with the increased lean angle through increased GRIP ,
they went to the HIGH PIPE , so as to avoid GROUNDING the EXHAUST . !
Actually , you can SEE the ' race ' gearbox , non kickstart , outer cover . Recessed to allow the pipe to fit in closer .
An ancient Motorcycle Mechanics mag , stated the TRIUMPH ENGINE fits the NORTON engine plates , IF you
Redrill One Hole ( of three ) but the Cylinder is canted forward . ( Which improoves the look , sit , C G , / weight distribution , And the VIBE's ! as the plane of vibration is angled .
However , the orrible Triumph Chaincase , at the clutch , is WHERE it holds the pipes to LOW & OUT , therefore , if its ' All Triumph ' , if its mounted so as the lower chain run is about
parrallel to the lower frame rail , Canting the whole assembly , You might fit the pipe in against the frame rail , preferably with 45 degree ' Lean cCearance ' .
If youre iting moden sticky tyres , and racing . ? Below Dunstal , likely ' Race spec . ? pipes ?? fit up & in , close . Looking at avg. swept Back pipes , many hang low & out , adversly ! .
Maybe you could get copies of the GENUINE RACE THRUXTON swept back pipes ? see how theyre not going to drag . Parently copies of the glass pack straight through mufflers are around too . Terry Mcdonald might be able to help .