Yamaha Golf Car UMAX 2 Rally AC
The Yamaha Golf Car UMAX 2 Rally AC is a golf cart with a stated top speed of 31.4 km/h (19.5 mph) and a curb weight of 648 kg (1428 lb).
Last updated: 9 October 2026
What we found
- A battery is documented for it: T-105 6V Flooded Lead Acid, identified by the manufacturer as the correct match.
- Specifications are published for it, each with its source.
- 2 recalls or safety notices are matched to it.
Motor and performance
- Minimum turning radius
- 4.0 m (13.1 ft)
- Maximum in reverse
- 10.0 km/h (6.2 mph)
- Top speed
- 31.4 km/h (19.5 mph)
- Drivetrain
- Secondary reduction ratio: 15.31:1
“Minimum turning radius 4.0 m (13.1 ft)”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
“Maximum reverse speed 10.0 km/h (6.2 mph)”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
“Maximum speed 31.4 km/h (19.5 mph)”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
“Differential/reduction gear Secondary reduction system helical gear Secondary reduction ratio: 15.31:1 Differential type bevel gear Lubricant/capacity SAE 80W-90 or SAE 90 gear oil/355 cc (355 mL, 0.38 US qt)”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
Battery and charging
- Battery fitted
- Trojan - T-105 (8x6volt) RC: minimum 115 min @ 75 Amps
- Charger fitted
- 48V nominal / 67.2V max DC output, 18A max charge current
“Battery Trojan - T-105 (8x6volt) RC: minimum 115 min @ 75 Amps”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
“GENERAL SPECIFICATIONS (FOR YAMAHA PROVIDED CHARGER) DC Output – see Operating Instructions Items YUM2E UMAX SPORTS Voltage - nom (V) 48 Voltage - max (V) 67.2 Current - max (A) 18”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A0-18.pdf
Size and fit
- Overall length
- 3115 mm (122.5 in.)
- Tyre size fitted
- 23 x 10.50-12 / 4 PR (front and rear)
- Curb weight
- 648 kg (1428 lb)
- Seating capacity
- One occupant per seat
- Overall width
- 1360 mm (53.5 in.)
- Height without the canopy
- 1290 mm (50.7 in.)
- Wheelbase
- 1965 mm (77.3 in.)
“Overall length 3115 mm (122.5 in.)”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
“Front 23 x 10.50-12 / 4 PR Rear 23 x 10.50-12 / 4 PR”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
“Curb weight (With Flooded Battery) 648 kg (1428 lb)”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
“Seating capacity One occupant per seat”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
“Overall width 1360 mm (53.5 in.)”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
“Overall height (steering height) 1290 mm (50.7 in.)”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
“Wheelbase 1965 mm (77.3 in.)”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
Brakes and safety
- Brakes
- Mechanical drum brake on each wheel with self-adjusters
“Brake system Mechanical drum brake on each wheel with self-adjusters”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
Frame and components
- Steering
- Rack and Pinion, 1.85 turn lock to lock each way
- Front suspension
- Independent (Coil-over strut type)
- Rear suspension
- Pivoted trailing arm (mono-link)
“Type Rack and Pinion Steering angle (L.H.) 1.85 turn Steering angle (R.H.) 1.85 turn”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
“Front Independent (Coil-over strut type)”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
“Rear Pivoted trailing arm (mono-link)”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
Other findings
- Tire pressure
- Recommended: Front 137 kPa (1.40 kgf/cm2, 20 psi) Rear 137 kPa (1.40 kgf/cm2, 20 psi) Minimum: Front 124 kPa (1.26 kgf/cm2, 18 psi) Rear 124 kPa (1.26 kgf/cm2, 18 psi)
“Recommended: Front 137 kPa (1.40 kgf/cm2, 20 psi) Rear 137 kPa (1.40 kgf/cm2, 20 psi) Minimum: Front 124 kPa (1.26 kgf/cm2, 18 psi) Rear 124 kPa (1.26 kgf/cm2, 18 psi)”
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
Recalls (2)
Most recalls cover only certain model years, serials or build dates — view each notice to check it against your own unit.
- 2025-06-05CPSCThe accelerator pedal spring can fail to return to idle when a consumer stops pressing the accelerator pedal, posing a crash hazard.only the four model-year serial ranges stated (MY2019-2022).View recall →
- 2019-08-28CPSCThe module that regulates power to the vehicle's USB ports can overheat and melt, posing a fire hazard.the one MY2019 serial range stated only.View recall →
Sources
- Archived document
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf
Retrieved September 28, 2026
- Archived document
Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A0-18.pdf
Retrieved September 28, 2026