United US 100

Engine and gearbox

The US 100 uses a 4-stroke, OHC, single-cylinder, air-cooled engine. The official page lists a displacement of 97 cc, an 8.1:1 compression ratio, a 4-speed gearbox and an arm-assembly kick starter. The battery is 12 V and the engine oil capacity is 0.8 litres. United’s official page does not publish power, torque or fuel economy figures, so we have left them out rather than quote unofficial numbers.

Size and practicality

The fuel tank holds 8.5 litres. Compared with the US 70, the US 100 runs larger 18-inch tyres: 2.50-18 (4PR) at the front and 2.75-18 (6PR) at the rear. Both brakes are mechanical drums. The official site does not publish dimensions, weight, seat height or ground clearance for this model. Larger wheels and a slightly bigger engine make it a reasonable step up for riders who carry a pillion or use rougher roads.

Equipment by variant

The official site lists two US 100 versions: Standard and Alloy Rim. We read the Standard page in full; we did not confirm the Alloy Rim page’s specification table, so we assumed its mechanical details match the Standard. Prices from United’s 1 July 2025 circular are Rs 108,500 for the Standard and Rs 113,500 for the Alloy Rim, a difference of Rs 5,000. The circular also lists “Special” versions at Rs 121,500 and Rs 132,000, which do not appear on the official site, so they are not included.

Warranty

No warranty terms are published on the model page. Please ask the dealer for the current warranty details.

Which variant to buy

This section is our opinion. The Standard at Rs 108,500 is the cheapest United with 18-inch wheels and is the better value if you want basic transport. The Alloy Rim costs only Rs 5,000 more, which is a small premium if you like the look of alloy wheels. Neither version offers an electric starter or disc brake, so riders who want those should look at the US 70 Self Start or the US 150.

Buying and servicing

United’s official website has an online booking page and separate dealer network pages for sales, warranty and service, plus a customer service page and phone numbers for the Lahore head office. We have not verified dealer stock or delivery times, so confirm these locally. Because United prices are changed through dealer circulars, ask for a written quotation that shows the exact variant and ex-factory price, and check whether registration, delivery and any dealer charges are extra.