the rubber pads that go either side are best. light and simple.
Or get some ducttape and wrap it around untill the right thickness. Will work just as well.
Like these: http://www.ebay.co.uk/itm/M-Part-Spares-M-P-Di2-mount-27-2-28-6-Size-Colour-Black-/152346293729?_trksid=p2141725.m3641.l6368
@hippy started
London Fixed Gear and Single-Speed is a community of fixed gear and single-speed cyclists.
hippy
the rubber pads that go either side are best. light and simple.
Or get some ducttape and wrap it around untill the right thickness. Will work just as well.