Cruisers
2018Ultra California Kid Bobber
22 fields on record
The 2018 Ultra California Kid Bobber is a custom bobber from the American builder Ultra. Its air-cooled 1,851.9cc V-twin drives a six-speed gearbox and belt final drive. A very low 635 mm seat and stripped-back styling give it a classic custom look.
- Capacity
- 1851.9 ccm
- Engine
- V-Twin, four-stroke
- Gearbox
- 6-speed
- Dry weight
- Not on record
Know it? Add it → - Seat height
- 635 mm
- Power
- 149.6 HP (110.0 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built as a stylish, low-slung custom bobber for cruising and showing off rather than for speed or long-distance touring.
- Built for
- A big, laid-back V-twin cruiser with custom bobber styling, valuing looks, sound, and low-speed presence over outright performance.
- Not ideal for
- This is not the bike for riders wanting sharp cornering ability, off-road capability, or serious high-mileage touring comfort.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 1851.9 ccm
- Power
- 149.6 HP (110.0 kW)
- Engine type
- V-Twin, four-stroke
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Electric
- Ignition
- Spyke Ignition System
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Belt
Dimensions & weight
- Overall length
- 2616 mm
- Seat height
- 635 mm
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Powder Coated Black Frame
- Front suspension
- Telescopic fork
- Rake (fork angle)
- 35.0°
Brakes & wheels
- Front brakes
- Single disc. Chromed Billet Brake Calipers
- Rear brakes
- Single disc. Chromed Billet Brake Calipers
- Front tyre
- 120-21
- Rear tyre
- 180-18
Other
- Color options
- Black, custom paint.
- Comments
- Standard Downtubes, 0'Backbone, 0'Downtube Stretch.
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2015 | 2018 | 2021 | 2023 | 2026 |
|---|---|---|---|---|---|
| Capacity | 1852 cc | 1852 cc | 1852 cc | 1852 cc | 1852 cc |
| Seat height | 635 mm | 635 mm | 635 mm | 635 mm | 635 mm |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Ultra California Kid Bobber?
The 2018 Ultra California Kid Bobber has a Capacity of 1851.9 ccm (113.01 cubic inches).
What engine power does the Ultra California Kid Bobber have?
The 2018 Ultra California Kid Bobber has a Power of 149.6 HP (110.0 kW).
How many gears does the Ultra California Kid Bobber have?
The 2018 Ultra California Kid Bobber has a Gearbox of 6-speed.
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