.or do motorcycles even have automatic transmissions? New to this.
Most motorcycles have manual transmissions in that you have a clutch and a shift lever and you have to do the work to change gears. Some (very few) motorcycles have automatic transmissions in that they have separate gear sets like a manual transmission, but no manual clutch and the bike does the work of changing the gears. These bikes also have paddle shifters, similar to a car, to hold the gears electroncally. The DN-01 Honda and the VFR1200 are examples. There are hybrids like some Yamaha FJRs where there is no manual clutch, but you have to shift with your foot. The bike will downshift on it's own. Scooters usually have a twist and go transmission. No shifting, but no gear sets either. They usually have a variable belt drive transmission where centrifugal force does the job of changing gears.
Manual transmission is the most common on motorcycles. The CVT 'automatic transmission' is most common on scooters. The Automatic transmission large motorcycles: Moto Guzzi, made a model with automatic transmission- originally a police special but after couple years police use was sold in civilian models- 'Californian' was one model as a 850, later 1000cc(?). Honda made a large 750 automatic and 400 model midweight with a 450 version for about 2 years. Motorcycle styled but scooter drive belt CVT exist- Aprilla has a 125, Huynsong- or something like that, a Korean Suzuki licensee- has motorcycle styled models with the drivetrain of the 400 and 650 Burgman, maybe a 250/300(?) also. A few specials with the automotive engines of various origin have automatic transmission from the donor car often- Bill Gelke used a Chevy 2 2.5 liter 4 cylinder with a powerglide in his car length home built, most of the Buick V6 powered homebuilts use the automatic GM transmission that were made for the engine. Boss Hoss uses the torque convertor only- could call that a automatic if you stretch definition. One local cycle uses a 1930s Ford Flathead V8 connected to a Chrysler torque convertor with the lockup and a simple manual engage lever driving a Honda Goldwing rear hub and wheel- it was at Boscobel late last summer.
Automatic in motorcycles is very rare and uncommon, and even though a few models did have an automatic, most that I know of weren't true full automatic, you still had to shift but they didn't require a clutch to shift, and normally they only had 2 gears. There were a few models that were fully automatic, but those were only produced for a couple years. Some small off road bikes can be considered automatic I guess, since some only have one gear therefore never shift, but in general, almost every motorcycle you see will be a manual transmission
