Ultra Groundpounder 330 Rigid - 2015 Specifications and Reviews
The 2015 Ultra Groundpounder 330 Rigid is a custom cruiser built for riders seeking authentic bobber style with modern reliability. Powered by a polished S&S V-twin engine paired with a 6-speed belt drive, it delivers classic cruiser character with straightforward performance. Known for its aggressive stance, rigid frame geometry, and distinctive 330-18 rear tire, this bike suits experienced riders who value raw, stripped-down aesthetics.
2015
General information | |
| Category | Custom / cruiser |
| Year | 2015 |
| Model | Ultra Groundpounder 330 Rigid |
| | |
Engine and Transmission Specifications | |
| Exhaust system | 2-into-2 exhaust |
| Driveline | Wet primary chain drive |
| Transmission type,final drive | Belt |
| Gearbox | 6-speed |
| Cooling system | Air |
| Ignition | Spyke Ignition System |
| Fuel system | Carburettor. Super G Carburetor |
| Engine details | S and S engine, polished |
| Engine type | V2, four-stroke |
| Capacity: | 1573.25 ccm (96.00 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Wheels | 60 Spoke Wire Wheels |
| Rear brakes | Single disc. Ultra calliper |
| Front brakes | Single disc. Ultra callipers |
| Rear tyre | 330-18 |
| Front tyre | 120-21 |
| Rake (fork angle) | 40.0° |
| Frame type | Center Balanced Fully Engineered Chassis. Rigid right side drive |
| | |
Physical measures and capacities | |
| Wheelbase | 2,489 mm (98.0 inches) |
| Seat height | 660 mm (26.0 inches) If adjustable, lowest setting. |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Comments | Standard downtube. 5 inch backbone. 2 inch downtube stretch. |
| Starter | Electric |
| Color options | Gloss black, flat black |
Performance Profile & Rider Fit
Best For
Track5%
City25%
Cornering15%
Daily Riding40%
Touring40%
Passenger20%
Rider Profile
| Best For | This is a machine best suited to experienced riders who understand the quirks of a rigid frame, hardtail custom with an extreme 330mm rear tyre and no rear suspension. |
| Purpose | Built as a low-slung, head-turning custom cruiser for boulevard cruising and show-quality presence rather than performance or distance riding. |
| Rider Fit | The low 660mm seat height is approachable, but the raked-out 40-degree fork, long 2489mm wheelbase, and massive rear tyre demand strength and confidence at low speed and in turns. |
| Character | A bold, radical custom statement built around a polished S&S V-twin, rigid chassis, and an oversized rear tyre, prioritizing style and attitude over handling. |
| Not Ideal For | This is not the bike for riders wanting agile cornering, long-distance comfort, passenger accommodation, or any kind of off-road capability. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Rider Reviews
Add a Comment
Related Motorcycle Specifications
More Ultra Motorcycles
- Motorcycles in database: 45863
- Technical specifications: 1490298
- Images of motorcycles: 72681
- Videos: 339
- Manufacturers: 501






































Please Login or Register if you would like to leave a comment.