I believe this number confirms that the bike is a 1991 Explosif and not a Hot. Tom Teesdale has confirmed that he took on the building of Hots right from the outset and all of his frames bear the TET stamp. Most Konas have either an H (Hodaka) or F (Fairly) number, denoting the factory the frame was made in. I have heard of two other Konas with T numbers, both of which were 1991 Explosifs, and Joe@Konaworld said that the T stood for Tange. Never got to the bottom of that, whether it meant that the Tange factory itself used to build frames I don't know.FluffyChicken":1540xy5v said:Serial Number is
T9109 XXXX first part as posted in the auction questions
Haggis may be right that the US market is less impressed by the Hot tag, but Kona certainly tried to talk it up as best they could - this is from the 1991 catalogue, the first time the Hot was marketed.
"It is possible to quantify the difference between an individually hand-crafted mountain bike frame and a production bike. It is worth the wait for an American built frame for those who understand and ride mountain bikes to the limit. Kona Hot is the collaboration of Joe Murray and one of America's most experienced and respected mountain bike builders. It takes advantage of Tange Prestige Concept tubing, and is TIG welded for strength and light weight. ... In addition, Kona's custom selection of colours, braze-ons, component groups and component options let you create the bike of your dreams."
It certainly used to cost a lot more than an Explosif, so if it sold in large numbers then on the face of it the marketing must have convinced people that it was worth a lot more.