What is The Fastest Harley Davidson Production Motorcycle?

Harley Davidson was one of the pioneers of cruising motorcycles, not for speed, but for a comfortable ride. But time goes on, new designs are created, and even cruisers get a need for speed. So, what is the fastest Harley Davidson production motorcycle ever made?

For 2026, that title belongs to the CVO Road Glide ST. In this article, we’ll identify the characteristics and makeup of this motorcycle and see how fast it is. We’ll also look back at the FXDR 114, which held the crown until it was discontinued after the 2020 model year.

The 2026 CVO Road Glide ST

The Harley-Davidson was made for leisure and relaxation. However, it can still being able to hammer down on the throttle when needed. Harley-Davidson is taking “hammer down” more seriously with this new class of bikes. The race-inspired performance bagger model. The bike is Inspired by the Harley-Davidson x Dynojet Factory Race Team bikes that compete for the MotoAmerica Mission King of the Baggers championship. The CVO Road Glide ST hits an electronically limited top speed of 120 MPH for short bursts. This make it the fastest production Harley-Davidson ever made.

When we talk about the fastest motorcycle Harley has ever made, the CVO Road Glide ST takes the modern crown thanks to its all-new Milwaukee-Eight 121 High Output engine. The power of this motorcycle is incredible. Let’s take a look and see what’s “under the seat”.

CVO Road Glide ST Engine

The CVO Road Glide ST is an actual powerplant, and with the throttle roll, you’re in control of the Milwaukee-Eight 121 High Output V-Twin. The official displacement is 1977cc (121 CI), with liquid-cooled cylinder heads, a high-performance camshaft, and a Heavy Breather intake that flows 26 per cent more air than the standard VVT 121 airbox. With 145 ft-lbs of torque at 4000 rpm, this bike leaves the dust in its tracks.

How Much Horsepower Does The CVO Road Glide ST Have?

Although most know motorcycles by CC or CI, it’s always good to see the bike’s information. The CVO Road Glide ST has a whopping 127 HP at 4900 rpm, making it the most powerful factory-installed engine ever in a Harley. Although your average biker will never need this much power at the rear wheel, it is there.

CVO Road Glide ST Top Speed

The top speed of the CVO Road Glide ST is electronically limited to 120 MPH, stock, out of the showroom, for a maximum of 25 seconds — Harley says this is intended for special situations like a track day on a closed racecourse. The tachometer redline has been elevated to 5900 rpm, allowing the rider to be very aggressive on the throttle. Although this bike is the quickest Grand American Touring Harley ever, she isn’t the fastest Harley ever produced.

What is the fastest Harley Davidson ever made?

Currently, the fastest production Harley-Davidson is the 2026 CVO Road Glide ST with its 127 HP, 145 lb-ft Milwaukee-Eight 121 HO engine and 120 MPH electronically limited top speed. Right behind it is its sibling, the 2026 CVO Street Glide ST, which shares the same engine but is electronically limited to 110 MPH. Before these, the FXDR 114 (produced 2019–2020) wore the crown with its 2.5-second 0-60 time, and before the FXDR, the 2001 V-Rod was the benchmark at around 3.5 seconds. However, this isn’t the fastest Harley-Davidson in existence.

The strongest/fastest Harley-Davidson ever made was a custom build. The modified Harley was called the Easyriders Streamliner. It was driven by a driver who specialised in drag racing because it was built for speed. The rocket bike was 23 feet (7 meters) long and completely enclosed, with no resemblance to a Harley-Davidson. This bike had two different 1500cc engines, which allowed it to top out at 322 mph. The driver behind this record-breaking missile was Dave Campos, who set both AMA and FIM absolute speed records on July 14, 1990 — one run averaged 322.150 mph, and a faster run averaged 322.870 mph. That record stood for 16 years before Rocky Robinson and the Top 1 Ack Attack streamliner broke it in 2006.

What is the Most Powerful Production Harley-Davidson?

This question has two answers because Harley-Davidson has made a massive mechanical special motor. The Screamin’ Eagle 131 boasts a mammoth 2147cc and can be built as either oil- or oil/air-cooled. Of course, this is just the engine, but it gives you a lot of power.

For 2026, Harley-Davidson rolled out major powertrain upgrades across the Grand American Touring and CVO families, including the new Milwaukee-Eight VVT 117 and the Milwaukee-Eight 121 High Output engines — the most powerful production motors ever offered by Harley-Davidson. The Milwaukee-Eight engine family now spans three different displacements, with the Milwaukee-Eight 121 HO sitting at the top.

The 2026 Harley-Davidson CVO Road Glide ST and CVO Street Glide ST are powered by the Milwaukee-Eight 121 HO. These bikes are sleek, fast, and powerful enough to please almost everyone. The motor produces 127 horsepower at 4900 rpm and 145 ft-lbs of torque at 4000 rpm. That rear wheel is the definition of power-on-demand. For riders who want similar muscle in a different package, the CVO Street Glide, CVO Street Glide Limited, and CVO Street Glide 3 Limited use the Milwaukee-Eight VVT 121 (with variable valve timing), which puts out 115 HP and 139 lb-ft of torque.

The 2026 Harley-Davidson Lineup

For 2026, Harley-Davidson revealed the lineup in two chapters. The first wave dropped in November 2025 with updates to the Touring, Cruiser, and Sport families, and the limited-production CVO collection of five motorcycles was unveiled in Milwaukee on January 14, 2026. The CVO portfolio includes the all-new CVO Street Glide ST, CVO Street Glide Limited, and CVO Street Glide 3 Limited models, plus revised CVO Road Glide ST and CVO Street Glide models.

In 2023, Harley-Davidson celebrated its 120th anniversary. The company had a Homecoming Festival in Milwaukee from July 13 to 16, 2023. The Homecoming has become an annual event since then. This day draws riders from all over the world.

Speaking of heritage, let’s talk about what the best-selling Harley-Davidson model has been over the past century and in recent years.

The infamous Sportster is a compact powerhouse seen and loved worldwide. The first model was produced in 1957, and the Sportster has remained nearly identical in chassis and style. She’s a reliable bike, with characteristics that suit almost all riders, from beginner to expert. The bike is an all-around legend in the motorcycle community. The classic air-cooled Evolution-engine Sportsters (Iron 883, Iron 1200, Forty-Eight, Seventy-Two) have all been discontinued, and Harley now sells three Sportster models for 2026 — the Nightster ($9,999), Nightster Special ($12,499), and Sportster S ($15,999) — all built on the liquid-cooled Revolution Max platform. The 2026 Sportster S, with its 121 HP Revolution Max 1250T engine, is the most powerful Sportster Harley-Davidson has ever built.

Overview

Harley-Davidson is a staple motorcycle brand known worldwide. When bikes are categorized, it’s street bikes and Harley-Davidsons. With the 2026 CVO Road Glide ST, they’ve combined the two into a powerhouse and icon in itself. This is the fastest Harley Davidson production model so far, and it’s impressive. The 2026 CVO Street Glide ST falls right behind it as the second-fastest production Harley to date, sharing the same 127 HP Milwaukee-Eight 121 HO engine but with a slightly lower 110 MPH electronic top-speed limiter.