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Yamaha Golf Car UMAX 4 Rally Sport EFI (2027)

yamahagolfcar.com/models/umax4-rally-sport-efi/specs

The Yamaha Golf Car UMAX 4 Rally Sport EFI is a golf cart with a stated top speed of 19.5 mph (31.4 km/h), a curb weight of 1,358 lbs. (616 kg) and a weight of 616 kg.

Last updated: 11 November 2026

Motor and performance

Fuel capacity
5.2 US gal (20 liters)

“Fuel Capacity 5.2 US gal (20 liters)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Minimum turning radius
17.4ft 5.3m

“Min Turning Radius 17.4ft 5.3m”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Gas engine
Yamaha-built, 402 cc, low-emission single cylinder 60° incline OHV

“Engine Type Yamaha-built, 402 cc, low-emission single cylinder 60° incline OHV”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Maximum in reverse
14.6mph 23.0km/h

“Max Reverse Speed 14.6mph 23.0km/h”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Top speed
19.5 mph (31.4 km/h)

“Max Forward Speed 19.5 mph (31.4 km/h)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Maximum gradient
15 degree

“Hill Climbing Capacity 15 degree”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Engine oil capacity
1.16 U.S. quart (1.1 liter, 1100cc)

Row from the maker’s page: “Oil Capacity” | “1.16 U.S. quart (1.1 liter, 1100cc)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Engine lubrication system
Splash-style positive oil lubrication

Row from the maker’s page: “Lubrication System” | “Splash-style positive oil lubrication”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Air cleaner
Two-stage, urethane-foam pre-cleaner, and high-capacity pleated paper cartridge

Row from the maker’s page: “Air Cleaner” | “Two-stage, urethane-foam pre-cleaner, and high-capacity pleated paper cartridge”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Size and fit

Weight
616 kg

Row from the maker’s page: “Curb Weight***” | “1,358 lbs. (616 kg)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Minimum ground clearance
5.9in (15 cm)

“Min Ground Clearance 5.9in (15 cm)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Bed capacity
300 lbs.

“Cargo Bed Capacity 300 lbs.”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Overall length
148.2 in (3,765 mm)

“Overall Length 148.2 in (3,765 mm)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Tyre size fitted
23x10x12 4ply Monitor K389 (front) K500 (rear)

“Tire Size 23x10x12 4ply Monitor K389 (front) K500 (rear)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Height with the suntop fitted
76.6 in (1,945 mm)

“Overall Height With Suntop 76.6 in (1,945 mm)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Curb weight
1,358 lbs. (616 kg)

“Curb Weight*** 1,358 lbs. (616 kg)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Seating capacity
4 persons

“Seating Capacity 4 persons”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Overall width
53.5 in (1,360 mm)

“Overall Width 53.5 in (1,360 mm)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Height without the canopy
50.6 in (1,285 mm)

“Overall Height 50.6 in (1,285 mm)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Rear wheel track
41.3 in (1,050 mm)

Row from the maker’s page: “Wheel Tread (Front)” | “41.3 in (1,050 mm)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Cargo box, inside
33.5in L x 45.9in W x 11.8in H

“Cargo Bed Size 33.5in L x 45.9in W x 11.8in H”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Wheelbase
110.8 in (2815 mm)

“Wheelbase 110.8 in (2815 mm)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Floorboard height
15.2in (38.6 cm)

Row from the maker’s page: “Floor Board Height” | “15.2in (38.6 cm)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Brakes and safety

Brakes
Mechanical drum brake on each wheel with self-adjusters

“Brakes Mechanical drum brake on each wheel with self-adjusters”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Frame and components

Steering
Self-compensating double reduction helical rack-and-pinion.

“Steering Self-compensating double reduction helical rack-and-pinion.”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Front suspension
Independent (Coil-over strut type)

“Suspension (Front) Independent (Coil-over strut type)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Colours
Matte Bourbon, Yacht Blue

Row from the maker’s page: “Available Model Colors” | “Matte Bourbon, Yacht Blue”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Frame
HybriCore™ chassis features a robotic welded automotive ladder-style steel frame protected with a multi-step full-immersion phosphate treatment, electro-deposition epoxy-based coating, and an electrostatic applied polyester/urethane powder topcoat.

Row from the maker’s page: “Frame” | “HybriCore™ chassis features a robotic welded automotive ladder-style steel frame protected with a multi-step full-immersion phosphate treatment, electro-deposition epoxy-based coating, and an electrostatic applied polyester/urethane powder topcoat.”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Rear suspension
Swing arm (mono-link)

“Suspension (Rear) Swing arm (mono-link)”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Identity

Model years
2027

“2027 UMAX 4 Rally Sport EFI - Specifications”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Other findings

Engine displacement
402 cc

“Engine Type Yamaha-built, 402 cc, low-emission single cylinder 60° incline OHV”

Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

Sources

  • Archived document

    Source: yamahagolfcar.com/models/umax4-rally-sport-efi/specs

    Retrieved October 11, 2026