2021 KTM 150 XC-W TPI Specifications

Name: 2021 KTM 150 XC-W TPI
Brand: KTM

Enduro / Off-Road • Specs last verified 13 July 2026

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2021 KTM 150 XC-W TPI Overview

For 2021, KTM offers the 150 XC-W TPI as an enduro / off-road motorcycle with 144 cc on tap. The 2021 KTM 150 XC-W TPI is built around a Single cylinder, two-stroke engine. Internally, bore and stroke are 58 x 54.5 mm. In everyday use, the 2021 150 XC-W TPI tips the scales at 96.8 kg, carries a 9-litre fuel tank, offers a seat height of 950 mm and spans a 1471 mm wheelbase. That's roughly 102 kg lighter than the average enduro / off-road motorcycle in our database. Every technical detail, from suspension travel to tyre sizes, is covered in the full 2021 KTM 150 XC-W TPI spec sheet below.

2021 150 XC-W TPI - Pros & Cons

Strengths

Fuel injection: No choke, no jetting, no altitude compensation to think about - fuel injection just works across a wider range of conditions than carburetion.

Considerations

Tall seat height: A 950 mm seat puts flat-footing out of reach for a lot of riders - sit on it in person before committing.
Modest fuel capacity: A 9-litre tank keeps things light but means budgeting for more frequent fuel stops on any longer ride.
Chain final drive upkeep: A chain drivetrain is the most common setup in its class, but it's also the one that demands the most regular hands-on maintenance.

Wear Points & Servicing Notes

Fuelling & injector care

Fuelling on the 150 XC-W TPI comes from fuel injection. Cold starts and throttle response stay consistent across altitude and temperature, the main practical edge over a carbureted equivalent.

Brake disc and pad wear

Single disc. Brembo twin-piston floating calliper up front provides the primary stopping power; inspect disc thickness and pad wear at each tyre change to catch scoring before it becomes a rotor replacement.

Suspension condition on used examples

Suspension duties are handled by WP XPlor 48 upside-down fork up front and WP Xplor PDS shock absorber at the rear. Weeping fork seals aren't a dealbreaker on a used bike, but they're a fair basis for negotiating price.

Final drive maintenance

Chain final drive on the 150 XC-W TPI means routine lubing and tension checks are part of ownership - skip them and sprocket wear accelerates noticeably.

Frame & chassis check

The Central double-cradle-type 25CrMo4 steel chassis holds up well with normal use; on a used bike it's still worth checking the head-stock and swingarm pivot area for impact damage or corrosion.

Low-speed handling

The 150 XC-W TPI's 96.8 kg kerb weight makes low-speed control noticeably less effort than on a heavier machine.

150 XC-W TPI - Buying & Maintenance Guide

What to check before buying

A pre-purchase check on the 2021 KTM 150 XC-W TPI should cover the same ground every time: service history, chain and sprocket condition, and any oil seepage around the casings. Start it from cold if you can - a well-kept 150 XC-W TPI settles to a smooth idle within seconds.

Oil and filter changes

Oil changes are the cheapest insurance you can buy for a 150 XC-W TPI's engine - keep to the manufacturer's interval rather than stretching it. Use the viscosity grade the manual specifies, not whatever's on sale.

Fuel system care

Injector systems like the 150 XC-W TPI's hold up well with basic care - decent fuel, an occasional cleaner additive, and draining old fuel before any layup longer than three months.

2021 KTM 150 XC-W TPI - Frequently Asked Questions

What engine does the 2021 KTM 150 XC-W TPI have?

The 2021 KTM 150 XC-W TPI uses a Single cylinder, two-stroke engine with 144 cc of displacement.

How much does the 2021 KTM 150 XC-W TPI weigh?

The 2021 KTM 150 XC-W TPI weighs 96.8 kg. This is the manufacturer's dry figure.

What is the fuel tank capacity of the 2021 KTM 150 XC-W TPI?

The 2021 KTM 150 XC-W TPI has a 9-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 150-180 km between stops.

Is the 2021 KTM 150 XC-W TPI suitable for shorter riders?

The 2021 KTM 150 XC-W TPI has a seat height of 950 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.

What brakes does the 2021 KTM 150 XC-W TPI have?

The 2021 KTM 150 XC-W TPI uses Single disc. Brembo twin-piston floating calliper at the front and Single disc. Brembo single-piston floating calliper at the rear.

What fuel system does the 2021 KTM 150 XC-W TPI use?

The 2021 KTM 150 XC-W TPI uses Injection, providing precise fuelling across the rev range and reliable cold-start behaviour.

What suspension does the 2021 KTM 150 XC-W TPI have?

The 2021 KTM 150 XC-W TPI uses WP XPlor 48 upside-down fork up front and WP Xplor PDS shock absorber at the rear.

KTM 150 XC-W TPI Spec Evolution

The KTM 150 XC-W TPI was produced across 2 model years (2021-2022). 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	2022
Colours	Orange/white	Orange/white/blue

Key Specifications

Engine

Single cylinder, two-stroke

Power

Not published by manufacturer

Torque

Not published by manufacturer

Top Speed

Not published by manufacturer

Weight

96.8 kg / 213.4 lbs

Fuel Capacity

9.00 litres / 2.38 US gallons

Full 2021 KTM 150 XC-W TPI Specifications

Colours Orange/white

Ground Clearance (in.) 14.6 inches

Ground Clearance (mm) 370 mm

Seat Height 950 mm / 37.4 in.

Wheelbase 1471 mm / 57.9 in.

Dry Weight 96.8 kg / 213.4 lbs

Fuel Capacity 9.00 litres / 2.38 US gallons

Bore x Stroke (in,) 2.3 x 2.1 inches

Bore x Stroke (mm) 58.0 x 54.5 mm

Displacement (cc) 144.0 cc

Displacement (ci) 8.79 cubic inches

Engine Type Single cylinder, two-stroke

Engine Detail Reed intake.

Fuel System Injection

Ignition Continental EMS

Starter Electric & kick

Clutch Wet multi-plate clutch, Brembo hydraulics

Final Drive Chain (final drive)

Gearbox 6-speed

Primary Drive X-Ring 5/8 x 1/4´ chain

Frame Type Central double-cradle-type 25CrMo4 steel

Suspension - Front WP XPlor 48 upside-down fork

Suspension - Rear WP Xplor PDS shock absorber

Rake 26.5°

Wheel Travel - Front 300 mm / 11.8 in.

Wheel Travel - Rear 310 mm / 12.2 in.

Brakes - Front Single disc. Brembo twin-piston floating calliper

Brakes - Rear Single disc. Brembo single-piston floating calliper

Specifications are compiled from manufacturer documentation and cross-referenced technical sources, and corrected on an ongoing basis. Spot an error? Let us know.