2021 Triumph Trident 660 Specifications

Name: 2021 Triumph Trident 660
Brand: Triumph

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2021 Triumph Trident 660 Overview

The 2021 Triumph Trident 660 is a sport motorcycle built around 660 cc of displacement. Under the tank sits a Four stroke, transverse three cylinder, DOHC, 4 valves per cylinder engine, a compression ratio of 11.1:1. 2021 Triumph Trident 660 delivers 80 hp @ 10250 rpm of peak power and 64 Nm @ 6250 rpm of torque. From a practical standpoint, the 2021 Trident 660 tips the scales at 189 kg, carries a 14-litre fuel tank, offers a seat height of 805 mm and spans a 1401 mm wheelbase. Scroll down for the complete 2021 Triumph Trident 660 spec sheet covering every technical detail from suspension travel to tyre sizes.

2021 Trident 660 - Pros & Cons

Strengths

Strong power output: 2021 Triumph Trident 660 makes 80 hp @ 10250 rpm with 64 Nm @ 6250 rpm of torque - competitive figures for its class.

Considerations

Age-related wear: As with any used Trident 660, a thorough pre-purchase inspection covering consumables, service history and tyres is always recommended.

Owner Experiences & Common Issues

General ownership notes

The 2021 Triumph Trident 660 has built a reputation for solid everyday reliability when serviced to schedule. As with any motorcycle of this era, documented service history is the single biggest indicator of long-term reliability when buying used.

Trident 660 - Buying & Maintenance Guide

What to check before buying

When inspecting a used 2021 Triumph Trident 660, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained Trident 660 should fire up cleanly and settle to a smooth idle within a few seconds.

Oil and filter changes

Regular oil changes are the single most important maintenance task on any Trident 660. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. Always use the correct viscosity grade as specified in the owner's manual.

2021 Triumph Trident 660 - Frequently Asked Questions

What engine does the 2021 Triumph Trident 660 have?

The 2021 Triumph Trident 660 uses a Four stroke, transverse three cylinder, DOHC, 4 valves per cylinder engine with 660 cc of displacement. It is liquid cooled.

How much does the 2021 Triumph Trident 660 weigh?

The 2021 Triumph Trident 660 weighs 189 kg. This is the manufacturer's wet figure.

How much power does the 2021 Triumph Trident 660 make?

The 2021 Triumph Trident 660 produces 80 hp @ 10250 rpm of power and 64 Nm @ 6250 rpm of torque. These are peak figures.

What is the fuel tank capacity of the 2021 Triumph Trident 660?

The 2021 Triumph Trident 660 has a 14-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 233-280 km between stops.

Is the 2021 Triumph Trident 660 suitable for shorter riders?

The 2021 Triumph Trident 660 has a seat height of 805 mm. This is a moderate seat height that suits a wide range of rider heights.

What brakes does the 2021 Triumph Trident 660 have?

The 2021 Triumph Trident 660 uses 2x 310mm discs Nissin 2-piston calipers at the front and Single 255mm disc Nissin single-piston sliding caliper at the rear.

What tyre sizes does the 2021 Triumph Trident 660 use?

The 2021 Triumph Trident 660 runs 120/70 - R17 front and 180/55 - R17 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.

What gearbox does the 2021 Triumph Trident 660 have?

The 2021 Triumph Trident 660 is fitted with a 6 Speed transmission.

Triumph Trident 660 Spec Evolution

The Triumph Trident 660 was produced across 2 model years (2021-2025). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.

Specification	2021	2025
Max Power	80 hp / 60 kW @ 10250 rpm	81 hp / 59.6 kW @ 10250 rpm
Wet Weight	189 kg / 417 lbs	195 kg / 430 lbs
Engine Detail	Four stroke, transverse three cylinder, DOHC, 4 valves per cylinder	Four stroke, transverse three cylinder, DOHC, 4 valves per cylinder
Seat Height	805 mm / 31.7 in	810 mm / 31.9 in
Brakes - Front	2x 310mm discs Nissin 2-piston calipers	2 x 310mm discs, 2-piston sliding calipers OCABS
Wheelbase	1401 mm / 55.2 in	1402 mm / 55.2 in
Brakes - Rear	Single 255mm disc Nissin single-piston sliding caliper	Single 255mm disc Nissin single-piston sliding caliper OCABS
Suspension - Rear	Showa monoshock RSU, with preload adjustment	Showa monoshock RSU, with preload adjustment