Classic 350 (UCE) · 2009–2020

Royal Enfield Classic 350 (UCE) 346 · 20 hp (2009 to 2020)

The Royal Enfield Classic 350 (UCE) 346 uses the Royal Enfield UCE 346 petrol engine with 20 hp.

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Technical specifications

Fuel
Petrol
Power
20 PS / 15 kW
Displacement
346 cm³
Cylinders
1
Engine code
Royal Enfield UCE 346
Period covered
2009–2020
Documented market
Europe

Transmission

  • Manual · 5 speeds

Figures apply to the cited configuration and market; equipment and transmissions may vary by production date.

Specification source : [1] AutoKarnet

This version

20 hp (15 kW), chain final drive, 5-speed manual. Built from 2009 to 2020.

AutoKarnet advice

Body style and inspection points

On a motorcycle, tyres, final drive and brakes matter as much as the oil change. Check the tyre manufacturing date, steering-head play and fork-tube seals; an oil film on a tube means a fork seal needs replacing. A notched steering bearing can be felt when braking at low speed.

AutoKarnet advice

Comparing generations

Other documented generations of this model: • Classic 350 (2021) (from 2021) : retro bike, 20–20 hp. A first registration near a generation change does not identify the car on its own: check the body style and powertrain before using a service schedule.

AutoKarnet advice

Maintenance and records

≈: estimated reference — the vehicle’s service indicator prevails.

Oil and filter change

≈ 10,000 km or 1 year

JASO MA or MA2 approved four-stroke motorcycle oil (JASO MB on scooters): an “energy conserving” car oil makes the wet clutch slip. Change it more often in city use or on track.

Source [1]

Brake fluid

Every 2 years

Replace the fluid in both circuits (and the hydraulic clutch if fitted), whatever the mileage; dark fluid has absorbed moisture.

Source [1]

Fork oil

≈ 30,000 km

Fork oil change and seal check; an oil film on the tubes means a seal needs replacing before it contaminates the brake caliper.

Source [1]

Chain kit (chain and sprockets)

≈ 25,000 km

Lubricate and check the tension every 500 to 1,000 km and after rain; replace chain and sprockets together when the chain no longer holds its tension or the teeth are hooked.

Source [1]

Spark plugs

Every 10,000 km

Replace the full set; worn plugs raise consumption and cause misfires.

Source [1]

Air filter

Every 10,000 km

Replace more often in dusty conditions.

Source [1]

Valve clearance

Every 10,000 km

Check and adjust if needed, often together with the plugs; too little clearance burns the valves, too much makes the engine noisy.

Source [1]

Questions about this version (3)

Which engine is in the Royal Enfield Classic 350 (UCE) 346?

The Royal Enfield UCE 346 petrol engine (346 cc), 20 hp (15 kW).

AutoKarnet advice

Which oil for the Royal Enfield Classic 350 346?

A JASO MA2 10W-40 four-stroke motorcycle oil suited to the Royal Enfield UCE 346 engine.

AutoKarnet advice

How do I check this page matches my car?

This page covers Royal Enfield Classic 350 (UCE) 346 20 hp, retro bike, 2009–2020, with 20 hp (15 kW), Royal Enfield UCE 346, 346 cm³, 5-speed manual, 2009–2020. Compare these details with the registration document and gearbox identification. The designation Royal Enfield UCE 346 may cover several revisions: a VIN is still needed to confirm part numbers.

AutoKarnet advice

Documentary sources

  1. [1] Rédaction AutoKarnet

    AutoKarnet · FR · Europe · Synthèse éditoriale AutoKarnet · Accessed 09/10/2026

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