The mirrors actually have pretty good rear visibility certainly enough for track , problems only arise when driving on the road with the harrnesses. Taking a chunk out of the exhaust is my usual concern might have to upgrade to a bigger bore system which sits a little higher!
Tom I had an issue with the crank pulley working loose, this damaged the pulley and ended up with me buying a full set of underdrive pulleys from the US otherwise it's been trouble free motoring !
