taco eater :
Jay R from Sacramento, CA United States
Keeps the cyl nice and cool. I definitely had to trim a fin to clear the petcock. But it isn't bad and you would be able to tell once it is on the bike. Definitely difficult to get on and off without pulling the motor mount and lifting the frame up. But is great once it is all torqued down.
Had this on a Dr kit. And now a polini. Perfect on both.
Fun fact. Derbi head needs an ES plug. The shorty will work but definitely isn't right. Grab some ES plugs and blast off!