What category is the 2015 Ultra Groundpounder ST?

The 2015 Ultra Groundpounder ST has a Category of Custom / cruiser.

What is the engine size of the 2015 Ultra Groundpounder ST?

The 2015 Ultra Groundpounder ST has a Capacity: of 1573.25 ccm (96.00 cubic inches).

What type of engine does the 2015 Ultra Groundpounder ST have?

The 2015 Ultra Groundpounder ST has a Engine type of V2, four-stroke.

Is the 2015 Ultra Groundpounder ST air cooled or liquid cooled?

The 2015 Ultra Groundpounder ST has a Cooling system of Air.

How many gears does the 2015 Ultra Groundpounder ST have?

The 2015 Ultra Groundpounder ST has a Gearbox of 6-speed.

What is the seat height of the 2015 Ultra Groundpounder ST?

The 2015 Ultra Groundpounder ST has a Seat height of 660 mm (26.0 inches) If adjustable, lowest setting..

Ultra Groundpounder ST - 2015 Specifications and Reviews

Name: 2015 Ultra Groundpounder ST
Brand: Ultra

The 2015 Ultra Groundpounder ST is a custom cruiser built for riders seeking classic American styling with modern performance. Its extended geometry, featuring downtube stretch and aggressive rake, delivers that signature low-slung stance while the polished S&S engine provides substantial power. Known for its minimalist solo seat design and striking 10-spoke wheels, it exemplifies aggressive ground-hugging cruiser character.

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2015

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General information
Category	Custom / cruiser
Year	2015
Model	Ultra Groundpounder ST
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
Seat	Solo
Wheels	10 spoke polished
Rear brakes	Single disc. Ultra calliper
Front brakes	Single disc. Ultra callipers
Rear tyre	330-18
Front tyre	120-21
Rake (fork angle)	38.0°
Frame type	Powder Coated Color Matched Frame.
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. 2 inch backbone. 2 inch downtube stretch.
Starter	Electric
Color options	Orange with flames

Performance Profile & Rider Fit

5.5s

0-60 mph (est.)

Best For

Track5%

City25%

Cornering20%

Daily Riding35%

Touring35%

Passenger10%

Rider Profile

Best For	This is a custom chopper-style build best suited to experienced riders comfortable with a long wheelbase, stretched frame, and raked-out steering geometry that demands deliberate, low-speed handling skill.
Purpose	Built as a show-and-go boulevard cruiser and statement custom, it's meant for style-focused cruising rather than performance riding or long-distance touring.
Rider Fit	The low 660mm seat height and solo seat make mounting easy, but the extended rake and long wheelbase require confident arm and body positioning to manage low-speed maneuvers.
Character	With a polished S&S big-inch V-twin, carbureted fuel delivery, and a color-matched stretched frame with flame paint, this bike is all about old-school custom attitude and visual presence.
Not Ideal For	This is not the bike for riders wanting agile cornering, off-road capability, passenger comfort, or a practical daily or long-haul touring companion.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2015 Ultra Groundpounder ST Rider Ergonomics Assessment

Your height

Inseam (optional)

Units

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Feet:

At 660mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2015 Ultra Groundpounder ST, with a cramped knee angle of around 80 degrees and a slightly forward riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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