I think it's a 6024 , do a search , lotsa talk about that swap . You can do it with a sealed beam , it's easy , a halogen is around 16.00 .

2005 Model . Two Fast Eddy stickers , a bell and a clock . She's Lola . She tinkles and keeps time . http://s649.photobucket.com/albums/uu211/britbike05/