What Is an All-Road Bike? The Complete Guide
An all-road bike is a drop-bar bike designed for tarmac first, with enough tyre room and toughness to handle rough lanes, canal paths and light gravel. It sits between a traditional road bike and a full gravel bike, and it suits riders who want speed on the road without being stuck when the surface turns bad.
What makes a bike "all-road"?
There's no strict industry definition, but all-road bikes usually share a few features. It is sometimes called the all-weather bike as it is perfect on tarmac in summer and has mudguard mounts so can transforms into winter bike. In short, it is very versatile.
Wider tyre clearance than a road bike. Where a race bike might fit 28mm tyres at most, an all-road bike typically takes something in the mid-30s or a little beyond. That extra volume improves comfort and grip and lets you leave tarmac when you want to.
Disc brakes. They give reliable stopping power in wet and muddy conditions, which is why they're standard on this type of bike.
Mudguard mounts. All-road bikes are usually designed for year-round riding, so mounts for guards are normal.
Endurance-leaning geometry. A slightly more upright, stable position makes long days more comfortable than on a race bike, while the handling stays lively on the road.
Versatile gearing and wheels. Tubeless-ready wheels, wider tyres and sensible gear ranges are common.
All-road vs road bike
A road bike is built for speed on smooth surfaces. It typically has narrow tyres, sharper steering and a lower riding position, and it has limited room for anything wider. That's what makes it fast and responsive, but it also makes it less forgiving on broken surfaces.
An all-road bike keeps most of that road feel, but adds tyre clearance, mudguards and a bit more comfort. You give up a little sharpness and some weight, and in return you get a bike that copes with a wider range of conditions and can be ridden through the winter.
Reilly's range shows the difference. The Fusion aero road bike has a maximum tyre clearance of 32mm, and is a race-oriented frame built around road tyres. The Spectre takes wider tyres, has mudguard mounts and is designed for all-year use.
All-road vs gravel bike
A gravel bike goes further towards off-road riding. It usually has much bigger tyre clearance, a longer, more relaxed geometry and more mounting points for luggage, and it's built around stability on loose or rough terrain.
An all-road bike is closer to a road bike in how it handles. It's more responsive on tarmac and lighter in feel, but it has less room for big, knobbly tyres. It suits mostly-road riders who'd like the option of light gravel, rather than riders whose routes are mostly off-road.
Reilly makes the distinction clearly. Cyclist described the Gradient as the do-everything gravel bike with 47mm tyre clearance and the Spectre as the all-road bike with 38mm clearance, while the Reflex gravel race bike has the largest clearance in the range at 55mm. Reilly's own guidance points light gravel riders towards the Spectre and hardcore gravel riders towards the Gradient.
Gradient (gravel bike) vs Spectre (all-road bike) read more here
Who is an all-road bike for?
An all-road bike suits you if:
- You ride mostly on tarmac but often take rough lanes, towpaths or the odd track.
- You want one bike for winter and summer, with mudguards on and off.
- You do sportives, audaxes or long endurance rides.
- You want comfort on long days without buying a full gravel bike.
- You commute or tour and want durability and versatility.
If you race on the road, a dedicated road bike is a better fit. If you mostly ride off-road, choose a gravel bike.
Why titanium suits an all-road bike
The all-road brief is about comfort, durability and year-round use, which plays to titanium's strengths.
Titanium tubing is around half the weight of steel, just as strong and similarly springy, and that's the source of its reputation for comfort. It doesn't rust, which matters when a bike lives through wet winters and salted roads. Reilly frames also come with a lifetime frame warranty for the original owner, which one reviewer described as a vote of confidence in their durability.
Why the Reilly Spectre is an excellent all-road bike
Reilly describes the Spectre as an all-weather, all-road titanium bike built for speed, comfort and versatility. It's designed to perform on tarmac and rough roads, with mudguard mounts for year-round riding. In its own words, it's mudguards for winter but light enough to be a speedy endurance machine in the spring.
It's a genuine all-rounder. Reilly's pitch is that you fit guards for winter, and come spring you ditch them and have a speedy sportive machine. It's also been ridden on serious events. One owner took theirs to Belgium for the Tour of Flanders Sportive, and a retailer describes it as capable of endurance challenges with bags strapped on.
Owners rate it highly. One rider said they bought theirs as a winter bike and ended up riding it all year, using it for long road rides as well as places no road bike would dare go, and described it as a magic carpet with the natural ride quality of titanium. Another said they've ridden theirs for five years, as their only road bike, using mudguards and lights in winter and stripping it down for faster summer riding. Read customer reviews here
Comfort is the point. A reviewer who compared his Spectre to his carbon Tarmac said the ride is like riding on a carpet, but that it isn't as fast as the carbon bike, which he was fine with. That's an honest picture: the Spectre isn't a race bike, and it doesn't pretend to be. It's designed for all-day rolling and exploring.
It handles rough roads and lanes. With a wider tyre than a typical road bike, it copes with broken tarmac, winter lanes and light gravel, and owners describe using it for light dry gravel riding with no problems.
The updated Spectre: what's new
Reilly has updated the Spectre. The new model is headlined with the following changes:
- UDH compatibility: The updated frame has a UDH rear derailleur mount, where the earlier model had a standard mount. This makes it easier to find replacement hangers and suits modern groupsets.
- Drop stays: A change to the frame's rear end design, as highlighted by Reilly.
- Full cable integration: Gear cables and brake hoses now run internally, where the earlier model used external gear cable routing with an internal downtube brake hose.
- BSA bottom bracket with access hatch: The threaded BSA bottom bracket is retained, which is generally easy to service, and the frame adds an access hatch.
- Integrated all-road carbon fork: The updated fork is integrated, and it keeps mudguard mounts. It's paired with an FSA external cup integrated headset in black.
- 40mm tyre capacity: Reilly's headline for the updated model quotes a tyre capacity of 40mm.
Other details carried across the Spectre range include hydraulic disc brakes with flat-mount calipers, 12mm thru axles, tubeless-ready all-road wheels, a Reilly carbon seatpost and titanium saddle, and titanium in the 3Al-2.5V grade. Reilly's listing also mentions three bottle cage mounts on the standard model, which is handy for long rides.
Spectre vs other Reilly bikes
Spectre vs Gradient: Choose the Spectre if you ride mostly road and light gravel, and want the snappier road feel. Choose the Gradient if you want bigger tyres, rougher terrain and more mounts for luggage.
Spectre vs Fusion: The Fusion is an aero race-oriented road bike, with a claimed frame weight of around 1.7kg and carbon-like aero tube shapes. Choose it for speed. Choose the Spectre for comfort, versatility and year-round use.
Spectre vs Reflex: The Reflex is a gravel race bike, with the largest clearance in the range. If you want a fast, off-road-focused bike, the Reflex is the one. The Spectre is a better fit if most of your riding is on tarmac.
Getting the most from an all-road bike
- Run tubeless tyres for comfort and puncture resistance. The Spectre comes with tubeless-ready wheels.
- Switch tyres by season: Wider, tougher tyres and guards for winter, lighter, faster tyres for summer.
- Use the mounts: Guards, bottles and lights make it a true year-round bike.
- Get a proper fit: Comfort is the point of an all-road bike, so it's worth getting the setup right. Reilly customers are offered a free bike fit. Book here
Some Frequently Asked Questions.
What is the difference between an all-road and a gravel bike? An all-road bike is more road-biased, with less tyre clearance and sharper handling. A gravel bike has bigger tyre room and a more relaxed geometry for off-road use.
Can I ride an all-road bike on gravel? Yes, on light gravel and smooth tracks. For rough or loose terrain, a gravel bike is a better choice.
Is an all-road bike slower than a road bike? Slightly, on tarmac. Tyre choice and position often make more difference than the frame.
Can an all-road bike take mudguards? Yes, that's a defining feature. The Spectre has mudguard mounts on frame and fork.
Is the Reilly Spectre a good commuting bike? Yes, thanks to its mudguard mounts, tyre clearance and durable titanium frame.
See Are Titanium Bikes Good For Commuting blog here
What tyre size does the Spectre take? Reilly's spec table lists a 38mm maximum, and its headline for the updated model quotes 40mm capacity.