Yamaha Golf Car UMAX 4 Rally Sport Li (2027)
yamahagolfcar.com/models/umax4-rally-sport-li/specs
Last updated: 16 September 2026
Motor and performance
- Motor type
- 48-volt AC
- Motor power, as the maker rates it
- 6.7 hp (5.0 kW FOR 60 minutes)
- Top speed
- 19.5 mph (31.4 km/h)
“Motor 48-volt AC Batteries RoyPow S51105PE (51-Volt) Motor Control”
Source: yamahagolfcar.com/models/umax4-rally-sport-li/specs
“Output Rating 6.7 hp (5.0 kW FOR 60 minutes)”
Source: yamahagolfcar.com/models/umax4-rally-sport-li/specs
“Max Forward Speed 19.5 mph (31.4 km/h) Max Reverse Speed 6.2mph 10.0km/h Min”
Source: yamahagolfcar.com/models/umax4-rally-sport-li/specs
Battery and charging
- The pack this takes, and where to find it
- Yamaha name a RoyPow S51105PE; RoyPow build it to order
- The battery the maker fits
- A RoyPow S51105PE at 51 V, which RoyPow do not publish
- Vehicle control module
- A NEOS 350 A AC controller, by Toyota Industries
- Charger fitted
- Delta-Q Charger
“Home Customized models S51105P-A 48 V / 105 Ah Technical Specifications Nominal Voltage: 48 V (51.2 V) Nominal Capacity: 105 Ah”
Source: roypow.com/lifepo4-golf-cart-batteries-s51105p-a-product
“Batteries RoyPow S51105PE (51-Volt) Motor Control Unit NEOS 350 amp AC”
Source: yamahagolfcar.com/models/umax4-rally-sport-li/specs
“Motor Control Unit NEOS 350 amp AC controller by Toyota Industries Corporation”
Source: yamahagolfcar.com/models/umax4-rally-sport-li/specs
“Charger Delta-Q Charger OTHER Available Model Colors Coral Red,”
Source: yamahagolfcar.com/models/umax4-rally-sport-li/specs
Size and fit
- What the bed carries
- 300 lbs.
- Overall length
- 148.2 in (3,765 mm)
- Tyre size fitted
- 23x10x12 4ply Monitor K389 (front) K500 (rear)
- Curb weight
- 1,374 lbs. (623 kg)
“Cargo Bed Capacity 300 lbs. Cargo Bed Size 33.5in L x 45.9in W x 11.8in”
Source: yamahagolfcar.com/models/umax4-rally-sport-li/specs
“Overall Length 148.2 in (3,765 mm) Overall Width 53.5 in (1,360 mm) Overall”
Source: yamahagolfcar.com/models/umax4-rally-sport-li/specs
“Tire Size 23x10x12 4ply Monitor K389 (front) K500 (rear)”
Source: yamahagolfcar.com/models/umax4-rally-sport-li/specs
“Curb Weight*** 1,374 lbs. (623 kg) PERFORMANCE Max Forward Speed 19.5 mph (31.4”
Source: yamahagolfcar.com/models/umax4-rally-sport-li/specs
United States — CPSC
We did not match this product to any recall in the data we hold from CPSC, last checked September 19, 2026. Check CPSC’s own search: cpsc.gov/Recalls
European Union
We did not match this product to any recall in the data we hold from the European Union, last checked September 19, 2026. Check the European Union’s own search: ec.europa.eu/safety-gate-alerts/screen/search
United Kingdom
We did not match this product to any recall in the data we hold from the United Kingdom, last checked September 19, 2026. Check the United Kingdom’s own search: gov.uk/product-safety-alerts-reports-recalls
Australia
We did not match this product to any recall in the data we hold from Australia, last checked September 14, 2026. Check Australia’s own search: productsafety.gov.au/recalls
Canada
We did not match this product to any recall in the data we hold from Canada, last checked September 19, 2026. Check Canada’s own search: recalls-rappels.canada.ca/en/search
France
We did not match this product to any recall in the data we hold from France, last checked September 19, 2026. Check France’s own search: rappel.conso.gouv.fr
None of these is a statement that the product is safe or unrecalled — only that our searches found nothing. Each regulator’s own search is linked above.