In production since 1998, the Derbi Senda is a 50cc motorcycle that was barely brought into the US. This is basically a tiny supermoto with excellent components – 6 speed transmission, liquid cooling, and a top speed over 50 miles per hour…though this one’s going to be faster as it comes with the engine out of a Honda CR85. The original creator calls it a “CeRbi” to reflect the blend of Derbi and CR.
The listing is unfortunately light on details, but the seller notes that this bike has a VHM head, Keihin carb, and VForce reeds. He adds that the top end is fresh with “about 1.5 hours” and it comes with “a whole parts bin full of extras.” Thankfully, there’s a video from the builder and it gets into more details (though I still don’t know the model year):
Find this Derbi for sale in Monterey, California for $2,500 or best offer here on Bay Area Rider’s Forum.