I think the main benefit is that the 110 rod and the use of different thickness base packers allows you to play around with port timings. A common touring tune upgrade on a TS1 barrel is to remove material from the base of the barrel but that's beyond the scope of most home tuners so fitting a 110 rod with a 2.5mm base packer is the equivalent of taking 0.5mm off the barrel base.speedy wrote:,else folk wouldn't keep converting to the 110mm rod.
A top quality Yamaha 110 rod with quality bearing is around £40 to £50 so a big saving on the exotica cranks on offer.