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Yamaha Golf Car UMAX 2 Rally AC

Yamaha Golf Car publish no page we could find for this model: Checked Yamaha's current golf car lineup page (yamahagolfcar.com/golf/) on 28 Sep 2026. It lists UMAX EFI, UMAX AC, UMAX LI, UMAX Rally Sport, UMAX Rally 2+2, UMAX Rally Sport 2+2, UMAX Rangepicker and UMAX Bistro trims, but no trim printed as plain "UMAX 1", "UMAX 2", "UMAX 1 Rally", "UMAX 2 Rally" or "UMAX 2 Rally AC". This row's own identity comes from its owner's manual, whose printed column heading does not have to match the current marketing lineup; the absence here is not treated as evidence this machine has been discontinued. Checked 28 September 2026.

Last updated: 29 September 2026

What we found

  • 1 battery is documented for it: T-105 6V Flooded Lead Acid, identified by the manufacturer as the correct match.
  • 17 specifications are published for it, each with the source it was read from.
  • 2 recalls or safety notices are matched to it.

Assembled from the evidence on this page. Every figure and count below is shown with the source it was read from.

Motor and performance

Turning radius
4.0 m (13.1 ft)

“Minimum turning radius 4.0 m (13.1 ft)”

Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf

Maximum in reverse
10.0 km/h (6.2 mph)

“Maximum reverse speed 10.0 km/h (6.2 mph)”

Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf

Top speed
31.4 km/h (19.5 mph)

“Maximum speed 31.4 km/h (19.5 mph)”

Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf

Drivetrain
Secondary reduction ratio: 15.31:1

“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

The battery the maker fits
Trojan - T-105 (8x6volt) RC: minimum 115 min @ 75 Amps

“Battery Trojan - T-105 (8x6volt) RC: minimum 115 min @ 75 Amps”

Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf

Size and fit

Overall length
3115 mm (122.5 in.)

“Overall length 3115 mm (122.5 in.)”

Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf

Tyre size fitted
23 x 10.50-12 / 4 PR (front and rear)

“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
648 kg (1428 lb)

“Curb weight (With Flooded Battery) 648 kg (1428 lb)”

Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf

People it seats
One occupant per seat

“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.)

“Overall width 1360 mm (53.5 in.)”

Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf

Height without the canopy
1290 mm (50.7 in.)

“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.)

“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

“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 suspension
Independent (Coil-over strut type)

“Front Independent (Coil-over strut type)”

Source: golfcars.yamaha-owners-manuals.com/om/LIT-19626-A4-03.pdf

Rear suspension
Pivoted trailing arm (mono-link)

“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)

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.

Battery specs & replacement options