This is in fact a 1991 size 19 frame. Aside from the chainsuck, which could easily be stabilised and covered, it looks in good condition. I think it might reach £100 in an auction.
I always think it's a bit ironic that this almost royal colour is so good, considering that it was originally the rather dowdy purple that can still be seen where the front mech band has protected it. It's just fortuitous that twenty years of sunlight make it fade in this way.
From 91 to 92 Konas paint schemes were basically boring colours,20 years of fade couldn't make me part with £75 let alone £175 more fool the person who buys it. And apart from that the 91 and 92 explosif's from my experience ride with a pretty dull feel compared with the original Konas and from the way my 1993 Lavadome rides,which feels a lot like the early bikes. It seems in 93 when kona pulled there finger out and they started making the bikes lively again.
Just my opinion mind
Konas:1988/89 Fire Mountain,Cindercone,Explosif.
Kona: 1992 Lavadome,1993 Lavadome
Muddy Fox: 1990 Pathfinder
1992ish Dave Yates Diablo
Denton Cycles: 1995
Saracen: 1989/90 Killiflyer