If you have a 27.2mm seatpost, get a 27.2-28.6 seatpost shim (Aprox £5) and a long 28.6mm AHead stem. Attach to seat post and fit a cut short handlebar then bungee stuff sack to the cut off bars.
Alternatively strap a length of wood with heavy duty zip ties to cross bar so it extends rearwards of saddle as a boom and strap stuff sack to rear boom.
Alternatively strap stuff sack to handlebars.
Alternatively buy a beam rack..........last is most sensible, cheap ones do exist !
never had a beam rack that didn't end up swaying off to one side - including expensive ones, although all the ones I've seen seem to be quick release and I think that is the issue.
would a narrow drop bar be a good solution for the rear bag mount Velo? - would give side support to the bag and more strapping options.
_________________Early Hope Disc Info...
- Xizang Serial Numbers...
My Bikes: 1992 Xizang
- 2000 Gazelle Superbe
- 1983 Raleigh Mk II MiniBurner - 1995 Schwinn Klunker - 1996 Orange P7 - 1998 Marin Shoreline Trail - 1998 Specialized Rockhopper -miniKen's Konalized