Corbin seat

[Gumby 1100_imp]

Is there any reason for the tuck/ roll besides aesthetics?

Corbin claims that it is easier for them to conform to the contours of the foam by using smaller pieces of leather and multiple pleats or seams. They say that is is more likely that the single piece of leather (as used in the Chip Beck Spec CB1100 Seat) can come loose from the foam or wrinkle with time.

However, that is exactly how Corbin makes many cruiser style seats and seats made for Yamaha (and other Bike manufacturers)...using a large, single piece of leather which conforms to the complex curves of the seat pocket. I had a Yamaha accessory seat made by Corbin using the large single slab of leather for the driver's section, and it never wrinkled or came loose.