long ass post alert 
,
doug, you use vipers on the twin don't ya ?
not sure what foams yer using, but heres what i use on vipers,
bare in mind my vipers are knackered and the internal belts have gone a bit so they do balloon a tad,
right, i use the baja front foams, the open cell ones that aint joined,
get some spray glue or contact adhesive, glue the foams ends together to make a round foam,
then glue that foam to the rim, then two layers of gaffer tape around the foam, but spray glue the foam then stick the tape on once glues gone tacky,
leave to go off for a bit and get high on the fumes,
fit the vipers on the rims, gonna be a pain in the arse but stick with it,
bolt the beads on and off ya go, the front foams are much lighter than say a zero growth or moulded foam and they blow out less often,
they will still blow out but takes much more punishment before they do,
i always do the nut and bolt mod on the outer beads as well ya get a tighter lock wi the beadloc,
i did actually super glue the inner bead as well in the end cos thats the bead i pop the most,
so glue the tire to the rim at the ribs and then fit the beadloc without gluing ,
the front foams give that littlle bit of support to the viper, and as ya know vipers are stiff anyways,
,doug, you use vipers on the twin don't ya ?
not sure what foams yer using, but heres what i use on vipers,
bare in mind my vipers are knackered and the internal belts have gone a bit so they do balloon a tad,
right, i use the baja front foams, the open cell ones that aint joined,
get some spray glue or contact adhesive, glue the foams ends together to make a round foam,
then glue that foam to the rim, then two layers of gaffer tape around the foam, but spray glue the foam then stick the tape on once glues gone tacky,
leave to go off for a bit and get high on the fumes
,fit the vipers on the rims, gonna be a pain in the arse but stick with it,
bolt the beads on and off ya go, the front foams are much lighter than say a zero growth or moulded foam and they blow out less often,
they will still blow out but takes much more punishment before they do,
i always do the nut and bolt mod on the outer beads as well ya get a tighter lock wi the beadloc,
i did actually super glue the inner bead as well in the end cos thats the bead i pop the most,
so glue the tire to the rim at the ribs and then fit the beadloc without gluing ,
the front foams give that littlle bit of support to the viper, and as ya know vipers are stiff anyways,
